/*  Prototype JavaScript framework, version 1.6.1
 *  (c) 2005-2009 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site: http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/

var Prototype = {
  Version: '1.6.1',

  Browser: (function(){
    var ua = navigator.userAgent;
    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
    return {
      IE:             !!window.attachEvent && !isOpera,
      Opera:          isOpera,
      WebKit:         ua.indexOf('AppleWebKit/') > -1,
      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
      MobileSafari:   /Apple.*Mobile.*Safari/.test(ua)
    }
  })(),

  BrowserFeatures: {
    XPath: !!document.evaluate,
    SelectorsAPI: !!document.querySelector,
    ElementExtensions: (function() {
      var constructor = window.Element || window.HTMLElement;
      return !!(constructor && constructor.prototype);
    })(),
    SpecificElementExtensions: (function() {
      if (typeof window.HTMLDivElement !== 'undefined')
        return true;

      var div = document.createElement('div');
      var form = document.createElement('form');
      var isSupported = false;

      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
        isSupported = true;
      }

      div = form = null;

      return isSupported;
    })()
  },

  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

  emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;


var Abstract = { };


var Try = {
  these: function() {
    var returnValue;

    for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

    return returnValue;
  }
};

/* Based on Alex Arnell's inheritance implementation. */

var Class = (function() {
  function subclass() {};
  function create() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

    function klass() {
      this.initialize.apply(this, arguments);
    }

    Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

    if (parent) {
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

    for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

    if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

    klass.prototype.constructor = klass;
    return klass;
  }

  function addMethods(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

    if (!Object.keys({ toString: true }).length) {
      if (source.toString != Object.prototype.toString)
        properties.push("toString");
      if (source.valueOf != Object.prototype.valueOf)
        properties.push("valueOf");
    }

    for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value;
        value = (function(m) {
          return function() { return ancestor[m].apply(this, arguments); };
        })(property).wrap(method);

        value.valueOf = method.valueOf.bind(method);
        value.toString = method.toString.bind(method);
      }
      this.prototype[property] = value;
    }

    return this;
  }

  return {
    create: create,
    Methods: {
      addMethods: addMethods
    }
  };
})();
(function() {

  var _toString = Object.prototype.toString;

  function extend(destination, source) {
    for (var property in source)
      destination[property] = source[property];
    return destination;
  }

  function inspect(object) {
    try {
      if (isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  }

  function toJSON(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

    if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (isElement(object)) return;

    var results = [];
    for (var property in object) {
      var value = toJSON(object[property]);
      if (!isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

    return '{' + results.join(', ') + '}';
  }

  function toQueryString(object) {
    return $H(object).toQueryString();
  }

  function toHTML(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  }

  function keys(object) {
    var results = [];
    for (var property in object)
      results.push(property);
    return results;
  }

  function values(object) {
    var results = [];
    for (var property in object)
      results.push(object[property]);
    return results;
  }

  function clone(object) {
    return extend({ }, object);
  }

  function isElement(object) {
    return !!(object && object.nodeType == 1);
  }

  function isArray(object) {
    return _toString.call(object) == "[object Array]";
  }


  function isHash(object) {
    return object instanceof Hash;
  }

  function isFunction(object) {
    return typeof object === "function";
  }

  function isString(object) {
    return _toString.call(object) == "[object String]";
  }

  function isNumber(object) {
    return _toString.call(object) == "[object Number]";
  }

  function isUndefined(object) {
    return typeof object === "undefined";
  }

  extend(Object, {
    extend:        extend,
    inspect:       inspect,
    toJSON:        toJSON,
    toQueryString: toQueryString,
    toHTML:        toHTML,
    keys:          keys,
    values:        values,
    clone:         clone,
    isElement:     isElement,
    isArray:       isArray,
    isHash:        isHash,
    isFunction:    isFunction,
    isString:      isString,
    isNumber:      isNumber,
    isUndefined:   isUndefined
  });
})();
Object.extend(Function.prototype, (function() {
  var slice = Array.prototype.slice;

  function update(array, args) {
    var arrayLength = array.length, length = args.length;
    while (length--) array[arrayLength + length] = args[length];
    return array;
  }

  function merge(array, args) {
    array = slice.call(array, 0);
    return update(array, args);
  }

  function argumentNames() {
    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
      .replace(/\s+/g, '').split(',');
    return names.length == 1 && !names[0] ? [] : names;
  }

  function bind(context) {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = slice.call(arguments, 1);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(context, a);
    }
  }

  function bindAsEventListener(context) {
    var __method = this, args = slice.call(arguments, 1);
    return function(event) {
      var a = update([event || window.event], args);
      return __method.apply(context, a);
    }
  }

  function curry() {
    if (!arguments.length) return this;
    var __method = this, args = slice.call(arguments, 0);
    return function() {
      var a = merge(args, arguments);
      return __method.apply(this, a);
    }
  }

  function delay(timeout) {
    var __method = this, args = slice.call(arguments, 1);
    timeout = timeout * 1000
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  }

  function defer() {
    var args = update([0.01], arguments);
    return this.delay.apply(this, args);
  }

  function wrap(wrapper) {
    var __method = this;
    return function() {
      var a = update([__method.bind(this)], arguments);
      return wrapper.apply(this, a);
    }
  }

  function methodize() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      var a = update([this], arguments);
      return __method.apply(null, a);
    };
  }

  return {
    argumentNames:       argumentNames,
    bind:                bind,
    bindAsEventListener: bindAsEventListener,
    curry:               curry,
    delay:               delay,
    defer:               defer,
    wrap:                wrap,
    methodize:           methodize
  }
})());


Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};


RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

    this.registerCallback();
  },

  registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

  execute: function() {
    this.callback(this);
  },

  stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

  onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
        this.currentlyExecuting = false;
      } catch(e) {
        this.currentlyExecuting = false;
        throw e;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, (function() {

  function prepareReplacement(replacement) {
    if (Object.isFunction(replacement)) return replacement;
    var template = new Template(replacement);
    return function(match) { return template.evaluate(match) };
  }

  function gsub(pattern, replacement) {
    var result = '', source = this, match;
    replacement = prepareReplacement(replacement);

    if (Object.isString(pattern))
      pattern = RegExp.escape(pattern);

    if (!(pattern.length || pattern.source)) {
      replacement = replacement('');
      return replacement + source.split('').join(replacement) + replacement;
    }

    while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  }

  function sub(pattern, replacement, count) {
    replacement = prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

    return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  }

  function scan(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  }

  function truncate(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  }

  function strip() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  }

  function stripTags() {
    return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
  }

  function stripScripts() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  }

  function extractScripts() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  }

  function evalScripts() {
    return this.extractScripts().map(function(script) { return eval(script) });
  }

  function escapeHTML() {
    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
  }

  function unescapeHTML() {
    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
  }


  function toQueryParams(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

        if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  }

  function toArray() {
    return this.split('');
  }

  function succ() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  }

  function times(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  }

  function camelize() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

    var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

    for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

    return camelized;
  }

  function capitalize() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  }

  function underscore() {
    return this.replace(/::/g, '/')
               .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
               .replace(/([a-z\d])([A-Z])/g, '$1_$2')
               .replace(/-/g, '_')
               .toLowerCase();
  }

  function dasherize() {
    return this.replace(/_/g, '-');
  }

  function inspect(useDoubleQuotes) {
    var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
      if (character in String.specialChar) {
        return String.specialChar[character];
      }
      return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  }

  function toJSON() {
    return this.inspect(true);
  }

  function unfilterJSON(filter) {
    return this.replace(filter || Prototype.JSONFilter, '$1');
  }

  function isJSON() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  }

  function evalJSON(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  }

  function include(pattern) {
    return this.indexOf(pattern) > -1;
  }

  function startsWith(pattern) {
    return this.indexOf(pattern) === 0;
  }

  function endsWith(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  }

  function empty() {
    return this == '';
  }

  function blank() {
    return /^\s*$/.test(this);
  }

  function interpolate(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }

  return {
    gsub:           gsub,
    sub:            sub,
    scan:           scan,
    truncate:       truncate,
    strip:          String.prototype.trim ? String.prototype.trim : strip,
    stripTags:      stripTags,
    stripScripts:   stripScripts,
    extractScripts: extractScripts,
    evalScripts:    evalScripts,
    escapeHTML:     escapeHTML,
    unescapeHTML:   unescapeHTML,
    toQueryParams:  toQueryParams,
    parseQuery:     toQueryParams,
    toArray:        toArray,
    succ:           succ,
    times:          times,
    camelize:       camelize,
    capitalize:     capitalize,
    underscore:     underscore,
    dasherize:      dasherize,
    inspect:        inspect,
    toJSON:         toJSON,
    unfilterJSON:   unfilterJSON,
    isJSON:         isJSON,
    evalJSON:       evalJSON,
    include:        include,
    startsWith:     startsWith,
    endsWith:       endsWith,
    empty:          empty,
    blank:          blank,
    interpolate:    interpolate
  };
})());

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

  evaluate: function(object) {
    if (object && Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

    return this.template.gsub(this.pattern, function(match) {
      if (object == null) return (match[1] + '');

      var before = match[1] || '';
      if (before == '\\') return match[2];

      var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

      while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

      return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

var Enumerable = (function() {
  function each(iterator, context) {
    var index = 0;
    try {
      this._each(function(value) {
        iterator.call(context, value, index++);
      });
    } catch (e) {
      if (e != $break) throw e;
    }
    return this;
  }

  function eachSlice(number, iterator, context) {
    var index = -number, slices = [], array = this.toArray();
    if (number < 1) return array;
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  }

  function all(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator.call(context, value, index);
      if (!result) throw $break;
    });
    return result;
  }

  function any(iterator, context) {
    iterator = iterator || Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator.call(context, value, index))
        throw $break;
    });
    return result;
  }

  function collect(iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function detect(iterator, context) {
    var result;
    this.each(function(value, index) {
      if (iterator.call(context, value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  }

  function findAll(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function grep(filter, iterator, context) {
    iterator = iterator || Prototype.K;
    var results = [];

    if (Object.isString(filter))
      filter = new RegExp(RegExp.escape(filter));

    this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator.call(context, value, index));
    });
    return results;
  }

  function include(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

    var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  }

  function inGroupsOf(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  }

  function inject(memo, iterator, context) {
    this.each(function(value, index) {
      memo = iterator.call(context, memo, value, index);
    });
    return memo;
  }

  function invoke(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  }

  function max(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  }

  function min(iterator, context) {
    iterator = iterator || Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator.call(context, value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  }

  function partition(iterator, context) {
    iterator = iterator || Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator.call(context, value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  }

  function pluck(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  }

  function reject(iterator, context) {
    var results = [];
    this.each(function(value, index) {
      if (!iterator.call(context, value, index))
        results.push(value);
    });
    return results;
  }

  function sortBy(iterator, context) {
    return this.map(function(value, index) {
      return {
        value: value,
        criteria: iterator.call(context, value, index)
      };
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  }

  function toArray() {
    return this.map();
  }

  function zip() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

    var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  }

  function size() {
    return this.toArray().length;
  }

  function inspect() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }









  return {
    each:       each,
    eachSlice:  eachSlice,
    all:        all,
    every:      all,
    any:        any,
    some:       any,
    collect:    collect,
    map:        collect,
    detect:     detect,
    findAll:    findAll,
    select:     findAll,
    filter:     findAll,
    grep:       grep,
    include:    include,
    member:     include,
    inGroupsOf: inGroupsOf,
    inject:     inject,
    invoke:     invoke,
    max:        max,
    min:        min,
    partition:  partition,
    pluck:      pluck,
    reject:     reject,
    sortBy:     sortBy,
    toArray:    toArray,
    entries:    toArray,
    zip:        zip,
    size:       size,
    inspect:    inspect,
    find:       detect
  };
})();
function $A(iterable) {
  if (!iterable) return [];
  if ('toArray' in Object(iterable)) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

Array.from = $A;


(function() {
  var arrayProto = Array.prototype,
      slice = arrayProto.slice,
      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available

  function each(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  }
  if (!_each) _each = each;

  function clear() {
    this.length = 0;
    return this;
  }

  function first() {
    return this[0];
  }

  function last() {
    return this[this.length - 1];
  }

  function compact() {
    return this.select(function(value) {
      return value != null;
    });
  }

  function flatten() {
    return this.inject([], function(array, value) {
      if (Object.isArray(value))
        return array.concat(value.flatten());
      array.push(value);
      return array;
    });
  }

  function without() {
    var values = slice.call(arguments, 0);
    return this.select(function(value) {
      return !values.include(value);
    });
  }

  function reverse(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  }

  function uniq(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  }

  function intersect(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  }


  function clone() {
    return slice.call(this, 0);
  }

  function size() {
    return this.length;
  }

  function inspect() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  }

  function toJSON() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }

  function indexOf(item, i) {
    i || (i = 0);
    var length = this.length;
    if (i < 0) i = length + i;
    for (; i < length; i++)
      if (this[i] === item) return i;
    return -1;
  }

  function lastIndexOf(item, i) {
    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
    var n = this.slice(0, i).reverse().indexOf(item);
    return (n < 0) ? n : i - n - 1;
  }

  function concat() {
    var array = slice.call(this, 0), item;
    for (var i = 0, length = arguments.length; i < length; i++) {
      item = arguments[i];
      if (Object.isArray(item) && !('callee' in item)) {
        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
          array.push(item[j]);
      } else {
        array.push(item);
      }
    }
    return array;
  }

  Object.extend(arrayProto, Enumerable);

  if (!arrayProto._reverse)
    arrayProto._reverse = arrayProto.reverse;

  Object.extend(arrayProto, {
    _each:     _each,
    clear:     clear,
    first:     first,
    last:      last,
    compact:   compact,
    flatten:   flatten,
    without:   without,
    reverse:   reverse,
    uniq:      uniq,
    intersect: intersect,
    clone:     clone,
    toArray:   clone,
    size:      size,
    inspect:   inspect,
    toJSON:    toJSON
  });

  var CONCAT_ARGUMENTS_BUGGY = (function() {
    return [].concat(arguments)[0][0] !== 1;
  })(1,2)

  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;

  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
})();
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {
  function initialize(object) {
    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
  }

  function _each(iterator) {
    for (var key in this._object) {
      var value = this._object[key], pair = [key, value];
      pair.key = key;
      pair.value = value;
      iterator(pair);
    }
  }

  function set(key, value) {
    return this._object[key] = value;
  }

  function get(key) {
    if (this._object[key] !== Object.prototype[key])
      return this._object[key];
  }

  function unset(key) {
    var value = this._object[key];
    delete this._object[key];
    return value;
  }

  function toObject() {
    return Object.clone(this._object);
  }

  function keys() {
    return this.pluck('key');
  }

  function values() {
    return this.pluck('value');
  }

  function index(value) {
    var match = this.detect(function(pair) {
      return pair.value === value;
    });
    return match && match.key;
  }

  function merge(object) {
    return this.clone().update(object);
  }

  function update(object) {
    return new Hash(object).inject(this, function(result, pair) {
      result.set(pair.key, pair.value);
      return result;
    });
  }

  function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

  function toQueryString() {
    return this.inject([], function(results, pair) {
      var key = encodeURIComponent(pair.key), values = pair.value;

      if (values && typeof values == 'object') {
        if (Object.isArray(values))
          return results.concat(values.map(toQueryPair.curry(key)));
      } else results.push(toQueryPair(key, values));
      return results;
    }).join('&');
  }

  function inspect() {
    return '#<Hash:{' + this.map(function(pair) {
      return pair.map(Object.inspect).join(': ');
    }).join(', ') + '}>';
  }

  function toJSON() {
    return Object.toJSON(this.toObject());
  }

  function clone() {
    return new Hash(this);
  }

  return {
    initialize:             initialize,
    _each:                  _each,
    set:                    set,
    get:                    get,
    unset:                  unset,
    toObject:               toObject,
    toTemplateReplacements: toObject,
    keys:                   keys,
    values:                 values,
    index:                  index,
    merge:                  merge,
    update:                 update,
    toQueryString:          toQueryString,
    inspect:                inspect,
    toJSON:                 toJSON,
    clone:                  clone
  };
})());

Hash.from = $H;
Object.extend(Number.prototype, (function() {
  function toColorPart() {
    return this.toPaddedString(2, 16);
  }

  function succ() {
    return this + 1;
  }

  function times(iterator, context) {
    $R(0, this, true).each(iterator, context);
    return this;
  }

  function toPaddedString(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  }

  function toJSON() {
    return isFinite(this) ? this.toString() : 'null';
  }

  function abs() {
    return Math.abs(this);
  }

  function round() {
    return Math.round(this);
  }

  function ceil() {
    return Math.ceil(this);
  }

  function floor() {
    return Math.floor(this);
  }

  return {
    toColorPart:    toColorPart,
    succ:           succ,
    times:          times,
    toPaddedString: toPaddedString,
    toJSON:         toJSON,
    abs:            abs,
    round:          round,
    ceil:           ceil,
    floor:          floor
  };
})());

function $R(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
}

var ObjectRange = Class.create(Enumerable, (function() {
  function initialize(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  }

  function _each(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  }

  function include(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }

  return {
    initialize: initialize,
    _each:      _each,
    include:    include
  };
})());



var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

  activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

  _each: function(iterator) {
    this.responders._each(iterator);
  },

  register: function(responder) {
    if (!this.include(responder))
      this.responders.push(responder);
  },

  unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

  dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});
Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

    this.options.method = this.options.method.toLowerCase();

    if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});
Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

  initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

  request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

    if (!['get', 'post'].include(this.method)) {
      params['_method'] = this.method;
      this.method = 'post';
    }

    this.parameters = params;

    if (params = Object.toQueryString(params)) {
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

    try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

      this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

      this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

      /* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

    }
    catch (e) {
      this.dispatchException(e);
    }
  },

  onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

  setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

    if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

      /* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

      if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

    for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

  success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

  getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

  respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

    if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

      var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

    try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

    if (state == 'Complete') {
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

  isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

  getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null; }
  },

  evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

  dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];








Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

    if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

  status:      0,

  statusText: '',

  getStatus: Ajax.Request.prototype.getStatus,

  getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

  getHeader: Ajax.Request.prototype.getHeader,

  getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

  getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

  getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

  _getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

  _getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

    options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

    $super(url, options);
  },

  updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

    if (!options.evalScripts) responseText = responseText.stripScripts();

    if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;

    this.start();
  },

  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

  stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});



function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}


(function(global) {

  var SETATTRIBUTE_IGNORES_NAME = (function(){
    var elForm = document.createElement("form");
    var elInput = document.createElement("input");
    var root = document.documentElement;
    elInput.setAttribute("name", "test");
    elForm.appendChild(elInput);
    root.appendChild(elForm);
    var isBuggy = elForm.elements
      ? (typeof elForm.elements.test == "undefined")
      : null;
    root.removeChild(elForm);
    elForm = elInput = null;
    return isBuggy;
  })();

  var element = global.Element;
  global.Element = function(tagName, attributes) {
    attributes = attributes || { };
    tagName = tagName.toLowerCase();
    var cache = Element.cache;
    if (SETATTRIBUTE_IGNORES_NAME && attributes.name) {
      tagName = '<' + tagName + ' name="' + attributes.name + '">';
      delete attributes.name;
      return Element.writeAttribute(document.createElement(tagName), attributes);
    }
    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
  };
  Object.extend(global.Element, element || { });
  if (element) global.Element.prototype = element.prototype;
})(this);

Element.cache = { };
Element.idCounter = 1;

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

  toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },


  hide: function(element) {
    element = $(element);
    element.style.display = 'none';
    return element;
  },

  show: function(element) {
    element = $(element);
    element.style.display = '';
    return element;
  },

  remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

  update: (function(){

    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
      var el = document.createElement("select"),
          isBuggy = true;
      el.innerHTML = "<option value=\"test\">test</option>";
      if (el.options && el.options[0]) {
        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
      }
      el = null;
      return isBuggy;
    })();

    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
      try {
        var el = document.createElement("table");
        if (el && el.tBodies) {
          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
          var isBuggy = typeof el.tBodies[0] == "undefined";
          el = null;
          return isBuggy;
        }
      } catch (e) {
        return true;
      }
    })();

    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
      var s = document.createElement("script"),
          isBuggy = false;
      try {
        s.appendChild(document.createTextNode(""));
        isBuggy = !s.firstChild ||
          s.firstChild && s.firstChild.nodeType !== 3;
      } catch (e) {
        isBuggy = true;
      }
      s = null;
      return isBuggy;
    })();

    function update(element, content) {
      element = $(element);

      if (content && content.toElement)
        content = content.toElement();

      if (Object.isElement(content))
        return element.update().insert(content);

      content = Object.toHTML(content);

      var tagName = element.tagName.toUpperCase();

      if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
        element.text = content;
        return element;
      }

      if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY) {
        if (tagName in Element._insertionTranslations.tags) {
          while (element.firstChild) {
            element.removeChild(element.firstChild);
          }
          Element._getContentFromAnonymousElement(tagName, content.stripScripts())
            .each(function(node) {
              element.appendChild(node)
            });
        }
        else {
          element.innerHTML = content.stripScripts();
        }
      }
      else {
        element.innerHTML = content.stripScripts();
      }

      content.evalScripts.bind(content).defer();
      return element;
    }

    return update;
  })(),

  replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

  insert: function(element, insertions) {
    element = $(element);

    if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

    var content, insert, tagName, childNodes;

    for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

      if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

      content = Object.toHTML(content);

      tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

      if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

      content.evalScripts.bind(content).defer();
    }

    return element;
  },

  wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

  inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

  recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

  ancestors: function(element) {
    return Element.recursivelyCollect(element, 'parentNode');
  },

  descendants: function(element) {
    return Element.select(element, "*");
  },

  firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

  immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

  previousSiblings: function(element) {
    return Element.recursivelyCollect(element, 'previousSibling');
  },

  nextSiblings: function(element) {
    return Element.recursivelyCollect(element, 'nextSibling');
  },

  siblings: function(element) {
    element = $(element);
    return Element.previousSiblings(element).reverse()
      .concat(Element.nextSiblings(element));
  },

  match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

  up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = Element.ancestors(element);
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

  down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return Element.firstDescendant(element);
    return Object.isNumber(expression) ? Element.descendants(element)[expression] :
      Element.select(element, expression)[index || 0];
  },

  previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = Element.previousSiblings(element);
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

  next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = Element.nextSiblings(element);
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },


  select: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element, args);
  },

  adjacent: function(element) {
    var args = Array.prototype.slice.call(arguments, 1);
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

  identify: function(element) {
    element = $(element);
    var id = Element.readAttribute(element, 'id');
    if (id) return id;
    do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
    Element.writeAttribute(element, 'id', id);
    return id;
  },

  readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

  writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

    if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

    for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

  getHeight: function(element) {
    return Element.getDimensions(element).height;
  },

  getWidth: function(element) {
    return Element.getDimensions(element).width;
  },

  classNames: function(element) {
    return new Element.ClassNames(element);
  },

  hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

  addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!Element.hasClassName(element, className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

  removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

  toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return Element[Element.hasClassName(element, className) ?
      'removeClassName' : 'addClassName'](element, className);
  },

  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

  empty: function(element) {
    return $(element).innerHTML.blank();
  },

  descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);

    if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

    if (ancestor.contains)
      return ancestor.contains(element) && ancestor !== element;

    while (element = element.parentNode)
      if (element == ancestor) return true;

    return false;
  },

  scrollTo: function(element) {
    element = $(element);
    var pos = Element.cumulativeOffset(element);
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

  getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value || value == 'auto') {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

  getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

  setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

    return element;
  },

  setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

  getDimensions: function(element) {
    element = $(element);
    var display = Element.getStyle(element, 'display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    if (originalPosition != 'fixed') // Switching fixed to absolute causes issues in Safari
      els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

  makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      if (Prototype.Browser.Opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

  undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

  makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

  undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

  cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName.toUpperCase() == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  absolutize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'absolute') return element;

    var offsets = Element.positionedOffset(element);
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

    element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

    element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

  relativize: function(element) {
    element = $(element);
    if (Element.getStyle(element, 'position') == 'relative') return element;

    element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

  cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

  getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

    while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

    return $(document.body);
  },

  viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

    var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

    } while (element = element.offsetParent);

    element = forElement;
    do {
      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

    return Element._returnOffset(valueL, valueT);
  },

  clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

    source = $(source);
    var p = Element.viewportOffset(source);

    element = $(element);
    var delta = [0, 0];
    var parent = null;
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = Element.getOffsetParent(element);
      delta = Element.viewportOffset(parent);
    }

    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,

  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          if (!Element.visible(element)) return null;

          var dim = parseInt(proceed(element, style), 10);

          if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

          var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      try { element.offsetParent }
      catch(e) { return $(document.body) }
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

  $w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        try { element.offsetParent }
        catch(e) { return Element._returnOffset(0,0) }
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
    function(proceed, element) {
      try { element.offsetParent }
      catch(e) { return Element._returnOffset(0,0) }
      return proceed(element);
    }
  );

  Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

    if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

    if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

  Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha\([^\)]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

    var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

  Element._attributeTranslations = (function(){

    var classProp = 'className';
    var forProp = 'for';

    var el = document.createElement('div');

    el.setAttribute(classProp, 'x');

    if (el.className !== 'x') {
      el.setAttribute('class', 'x');
      if (el.className === 'x') {
        classProp = 'class';
      }
    }
    el = null;

    el = document.createElement('label');
    el.setAttribute(forProp, 'x');
    if (el.htmlFor !== 'x') {
      el.setAttribute('htmlFor', 'x');
      if (el.htmlFor === 'x') {
        forProp = 'htmlFor';
      }
    }
    el = null;

    return {
      read: {
        names: {
          'class':      classProp,
          'className':  classProp,
          'for':        forProp,
          'htmlFor':    forProp
        },
        values: {
          _getAttr: function(element, attribute) {
            return element.getAttribute(attribute);
          },
          _getAttr2: function(element, attribute) {
            return element.getAttribute(attribute, 2);
          },
          _getAttrNode: function(element, attribute) {
            var node = element.getAttributeNode(attribute);
            return node ? node.value : "";
          },
          _getEv: (function(){

            var el = document.createElement('div');
            el.onclick = Prototype.emptyFunction;
            var value = el.getAttribute('onclick');
            var f;

            if (String(value).indexOf('{') > -1) {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                attribute = attribute.toString();
                attribute = attribute.split('{')[1];
                attribute = attribute.split('}')[0];
                return attribute.strip();
              };
            }
            else if (value === '') {
              f = function(element, attribute) {
                attribute = element.getAttribute(attribute);
                if (!attribute) return null;
                return attribute.strip();
              };
            }
            el = null;
            return f;
          })(),
          _flag: function(element, attribute) {
            return $(element).hasAttribute(attribute) ? attribute : null;
          },
          style: function(element) {
            return element.style.cssText.toLowerCase();
          },
          title: function(element) {
            return element.title;
          }
        }
      }
    }
  })();

  Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

      style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

  Element._attributeTranslations.has = {};

  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

  (function(v) {
    Object.extend(v, {
      href:        v._getAttr2,
      src:         v._getAttr2,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);

  if (Prototype.BrowserFeatures.ElementExtensions) {
    (function() {
      function _descendants(element) {
        var nodes = element.getElementsByTagName('*'), results = [];
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName !== "!") // Filter out comment nodes.
            results.push(node);
        return results;
      }

      Element.Methods.down = function(element, expression, index) {
        element = $(element);
        if (arguments.length == 1) return element.firstDescendant();
        return Object.isNumber(expression) ? _descendants(element)[expression] :
          Element.select(element, expression)[index || 0];
      }
    })();
  }

}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

    if (value == 1)
      if(element.tagName.toUpperCase() == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

    return element;
  };

  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

      element = element.offsetParent;
    } while (element);

    return Element._returnOffset(valueL, valueT);
  };
}

if ('outerHTML' in document.documentElement) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

    content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

    if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

    content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  var tags = Element._insertionTranslations.tags;
  Object.extend(tags, {
    THEAD: tags.TBODY,
    TFOOT: tags.TBODY,
    TH:    tags.TD
  });
})();

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return !!(node && node.specified);
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

(function(div) {

  if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']) {
    window.HTMLElement = { };
    window.HTMLElement.prototype = div['__proto__'];
    Prototype.BrowserFeatures.ElementExtensions = true;
  }

  div = null;

})(document.createElement('div'))

Element.extend = (function() {

  function checkDeficiency(tagName) {
    if (typeof window.Element != 'undefined') {
      var proto = window.Element.prototype;
      if (proto) {
        var id = '_' + (Math.random()+'').slice(2);
        var el = document.createElement(tagName);
        proto[id] = 'x';
        var isBuggy = (el[id] !== 'x');
        delete proto[id];
        el = null;
        return isBuggy;
      }
    }
    return false;
  }

  function extendElementWith(element, methods) {
    for (var property in methods) {
      var value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }
  }

  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');

  if (Prototype.BrowserFeatures.SpecificElementExtensions) {
    if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY) {
      return function(element) {
        if (element && typeof element._extendedByPrototype == 'undefined') {
          var t = element.tagName;
          if (t && (/^(?:object|applet|embed)$/i.test(t))) {
            extendElementWith(element, Element.Methods);
            extendElementWith(element, Element.Methods.Simulated);
            extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
          }
        }
        return element;
      }
    }
    return Prototype.K;
  }

  var Methods = { }, ByTag = Element.Methods.ByTag;

  var extend = Object.extend(function(element) {
    if (!element || typeof element._extendedByPrototype != 'undefined' ||
        element.nodeType != 1 || element == window) return element;

    var methods = Object.clone(Methods),
        tagName = element.tagName.toUpperCase();

    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

    extendElementWith(element, methods);

    element._extendedByPrototype = Prototype.emptyFunction;
    return element;

  }, {
    refresh: function() {
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

  extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

  if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

  if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

  if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

  function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

  function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

  function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

    var element = document.createElement(tagName);
    var proto = element['__proto__'] || element.constructor.prototype;
    element = null;
    return proto;
  }

  var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
   Element.prototype;

  if (F.ElementExtensions) {
    copy(Element.Methods, elementPrototype);
    copy(Element.Methods.Simulated, elementPrototype, true);
  }

  if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

  Object.extend(Element, Element.Methods);
  delete Element.ByTag;

  if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};


document.viewport = {

  getDimensions: function() {
    return { width: this.getWidth(), height: this.getHeight() };
  },

  getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
  }
};

(function(viewport) {
  var B = Prototype.Browser, doc = document, element, property = {};

  function getRootElement() {
    if (B.WebKit && !doc.evaluate)
      return document;

    if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
      return document.body;

    return document.documentElement;
  }

  function define(D) {
    if (!element) element = getRootElement();

    property[D] = 'client' + D;

    viewport['get' + D] = function() { return element[property[D]] };
    return viewport['get' + D]();
  }

  viewport.getWidth  = define.curry('Width');

  viewport.getHeight = define.curry('Height');
})(document.viewport);


Element.Storage = {
  UID: 1
};

Element.addMethods({
  getStorage: function(element) {
    if (!(element = $(element))) return;

    var uid;
    if (element === window) {
      uid = 0;
    } else {
      if (typeof element._prototypeUID === "undefined")
        element._prototypeUID = [Element.Storage.UID++];
      uid = element._prototypeUID[0];
    }

    if (!Element.Storage[uid])
      Element.Storage[uid] = $H();

    return Element.Storage[uid];
  },

  store: function(element, key, value) {
    if (!(element = $(element))) return;

    if (arguments.length === 2) {
      Element.getStorage(element).update(key);
    } else {
      Element.getStorage(element).set(key, value);
    }

    return element;
  },

  retrieve: function(element, key, defaultValue) {
    if (!(element = $(element))) return;
    var hash = Element.getStorage(element), value = hash.get(key);

    if (Object.isUndefined(value)) {
      hash.set(key, defaultValue);
      value = defaultValue;
    }

    return value;
  },

  clone: function(element, deep) {
    if (!(element = $(element))) return;
    var clone = element.cloneNode(deep);
    clone._prototypeUID = void 0;
    if (deep) {
      var descendants = Element.select(clone, '*'),
          i = descendants.length;
      while (i--) {
        descendants[i]._prototypeUID = void 0;
      }
    }
    return Element.extend(clone);
  }
});
/* Portions of the Selector class are derived from Jack Slocum's DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();

    if (this.shouldUseSelectorsAPI()) {
      this.mode = 'selectorsAPI';
    } else if (this.shouldUseXPath()) {
      this.mode = 'xpath';
      this.compileXPathMatcher();
    } else {
      this.mode = "normal";
      this.compileMatcher();
    }

  },

  shouldUseXPath: (function() {

    var IS_DESCENDANT_SELECTOR_BUGGY = (function(){
      var isBuggy = false;
      if (document.evaluate && window.XPathResult) {
        var el = document.createElement('div');
        el.innerHTML = '<ul><li></li></ul><div><ul><li></li></ul></div>';

        var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
          "//*[local-name()='li' or local-name()='LI']";

        var result = document.evaluate(xpath, el, null,
          XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

        isBuggy = (result.snapshotLength !== 2);
        el = null;
      }
      return isBuggy;
    })();

    return function() {
      if (!Prototype.BrowserFeatures.XPath) return false;

      var e = this.expression;

      if (Prototype.Browser.WebKit &&
       (e.include("-of-type") || e.include(":empty")))
        return false;

      if ((/(\[[\w-]*?:|:checked)/).test(e))
        return false;

      if (IS_DESCENDANT_SELECTOR_BUGGY) return false;

      return true;
    }

  })(),

  shouldUseSelectorsAPI: function() {
    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;

    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;

    if (!Selector._div) Selector._div = new Element('div');

    try {
      Selector._div.querySelector(this.expression);
    } catch(e) {
      return false;
    }

    return true;
  },

  compileMatcher: function() {
    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

    this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[name]) ? c[name](m) :
            new Template(c[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

  compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m, len = ps.length, name;

    if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

    this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        name = ps[i].name;
        if (m = e.match(ps[i].re)) {
          this.matcher.push(Object.isFunction(x[name]) ? x[name](m) :
            new Template(x[name]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

    this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

  findElements: function(root) {
    root = root || document;
    var e = this.expression, results;

    switch (this.mode) {
      case 'selectorsAPI':
        if (root !== document) {
          var oldId = root.id, id = $(root).identify();
          id = id.replace(/([\.:])/g, "\\$1");
          e = "#" + id + " " + e;
        }

        results = $A(root.querySelectorAll(e)).map(Element.extend);
        root.id = oldId;

        return results;
      case 'xpath':
        return document._getElementsByXPath(this.xpath, root);
      default:
       return this.matcher(root);
    }
  },

  match: function(element) {
    this.tokens = [];

    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m, len = ps.length, name;

    while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i = 0; i<len; i++) {
        p = ps[i].re;
        name = ps[i].name;
        if (m = e.match(p)) {
          if (as[name]) {
            this.tokens.push([name, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            return this.findElements(document).include(element);
          }
        }
      }
    }

    var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

    return match;
  },

  toString: function() {
    return this.expression;
  },

  inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

if (Prototype.BrowserFeatures.SelectorsAPI &&
 document.compatMode === 'BackCompat') {
  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
    var div = document.createElement('div'),
     span = document.createElement('span');

    div.id = "prototype_test_id";
    span.className = 'Test';
    div.appendChild(span);
    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
    div = span = null;
    return isIgnored;
  })();
}

Object.extend(Selector, {
  _cache: { },

  xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0)]",
      'checked':     "[@checked]",
      'disabled':    "[(@disabled) and (@type!='hidden')]",
      'enabled':     "[not(@disabled) and (@type!='hidden')]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v, len = p.length, name;

        var exclusion = [];
        while (e && le != e && (/\S/).test(e)) {
          le = e;
          for (var i = 0; i<len; i++) {
            name = p[i].name
            if (m = e.match(p[i].re)) {
              v = Object.isFunction(x[name]) ? x[name](m) : new Template(x[name]).evaluate(m);
              exclusion.push("(" + v.substring(1, v.length - 1) + ")");
              e = e.replace(m[0], '');
              break;
            }
          }
        }
        return "[not(" + exclusion.join(" and ") + ")]";
      },
      'nth-child':      function(m) {
        return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
      },
      'nth-last-child': function(m) {
        return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
      },
      'nth-of-type':    function(m) {
        return Selector.xpath.pseudos.nth("position() ", m);
      },
      'nth-last-of-type': function(m) {
        return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
      },
      'first-of-type':  function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
      },
      'last-of-type':   function(m) {
        m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
      },
      'only-of-type':   function(m) {
        var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
      },
      nth: function(fragment, m) {
        var mm, formula = m[6], predicate;
        if (formula == 'even') formula = '2n+0';
        if (formula == 'odd')  formula = '2n+1';
        if (mm = formula.match(/^(\d+)$/)) // digit only
          return '[' + fragment + "= " + mm[1] + ']';
        if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
          if (mm[1] == "-") mm[1] = -1;
          var a = mm[1] ? Number(mm[1]) : 1;
          var b = mm[2] ? Number(mm[2]) : 0;
          predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
          "((#{fragment} - #{b}) div #{a} >= 0)]";
          return new Template(predicate).evaluate({
            fragment: fragment, a: a, b: b });
        }
      }
    }
  },

  criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

  patterns: [
    { name: 'laterSibling', re: /^\s*~\s*/ },
    { name: 'child',        re: /^\s*>\s*/ },
    { name: 'adjacent',     re: /^\s*\+\s*/ },
    { name: 'descendant',   re: /^\s/ },

    { name: 'tagName',      re: /^\s*(\*|[\w\-]+)(\b|$)?/ },
    { name: 'id',           re: /^#([\w\-\*]+)(\b|$)/ },
    { name: 'className',    re: /^\.([\w\-\*]+)(\b|$)/ },
    { name: 'pseudo',       re: /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/ },
    { name: 'attrPresence', re: /^\[((?:[\w-]+:)?[\w-]+)\]/ },
    { name: 'attr',         re: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/ }
  ],

  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

    className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

    id: function(element, matches) {
      return element.id === matches[1];
    },

    attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

    attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

  handlers: {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

    unmark: (function(){

      var PROPERTIES_ATTRIBUTES_MAP = (function(){
        var el = document.createElement('div'),
            isBuggy = false,
            propName = '_countedByPrototype',
            value = 'x'
        el[propName] = value;
        isBuggy = (el.getAttribute(propName) === value);
        el = null;
        return isBuggy;
      })();

      return PROPERTIES_ATTRIBUTES_MAP ?
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node.removeAttribute('_countedByPrototype');
          return nodes;
        } :
        function(nodes) {
          for (var i = 0, node; node = nodes[i]; i++)
            node._countedByPrototype = void 0;
          return nodes;
        }
    })(),

    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (typeof (n = nodes[i])._countedByPrototype == 'undefined') {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

    child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

    adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

    laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

    nextElementSibling: function(node) {
      while (node = node.nextSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

    id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;

      if (root == document) {
        if (!targetNode) return [];
        if (!nodes) return [targetNode];
      } else {
        if (!root.sourceIndex || root.sourceIndex < 1) {
          var nodes = root.getElementsByTagName('*');
          for (var j = 0, node; node = nodes[j]; j++) {
            if (node.id === id) return [node];
          }
        }
      }

      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

    className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

    byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

    attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

    attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

    pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

  pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

    'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (node.tagName == '!' || node.firstChild) continue;
        results.push(node);
      }
      return results;
    },

    'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

    'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled && (!node.type || node.type !== 'hidden'))
          results.push(node);
      return results;
    },

    'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

    'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

  operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv == v || nv && nv.startsWith(v); },
    '$=': function(nv, v) { return nv == v || nv && nv.endsWith(v); },
    '*=': function(nv, v) { return nv == v || nv && nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + (nv || "").toUpperCase() +
     '-').include('-' + (v || "").toUpperCase() + '-'); }
  },

  split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

  matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

  findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

  findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}

var Form = {
  reset: function(form) {
    form = $(form);
    form.reset();
    return form;
  },

  serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

    var data = elements.inject({ }, function(result, element) {
      if (!element.disabled && element.name) {
        key = element.name; value = $(element).getValue();
        if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
            submit !== false && (!submit || key == submit) && (submitted = true)))) {
          if (key in result) {
            if (!Object.isArray(result[key])) result[key] = [result[key]];
            result[key].push(value);
          }
          else result[key] = value;
        }
      }
      return result;
    });

    return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

  getElements: function(form) {
    var elements = $(form).getElementsByTagName('*'),
        element,
        arr = [ ],
        serializers = Form.Element.Serializers;
    for (var i = 0; element = elements[i]; i++) {
      arr.push(element);
    }
    return arr.inject([], function(elements, child) {
      if (serializers[child.tagName.toLowerCase()])
        elements.push(Element.extend(child));
      return elements;
    })
  },

  getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

    if (!typeName && !name) return $A(inputs).map(Element.extend);

    for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

    return matchingInputs;
  },

  disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

  enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

  findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

    return firstByIndex ? firstByIndex : elements.find(function(element) {
      return /^(?:input|select|textarea)$/i.test(element.tagName);
    });
  },

  focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

  request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

    var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

    if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

    if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

    return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/


Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

  select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {

  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

  getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

  setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

  clear: function(element) {
    $(element).value = '';
    return element;
  },

  present: function(element) {
    return $(element).value != '';
  },

  activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !(/^(?:button|reset|submit)$/i.test(element.type))))
        element.select();
    } catch (e) { }
    return element;
  },

  disable: function(element) {
    element = $(element);
    element.disabled = true;
    return element;
  },

  enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;

var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

  inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

  textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

  select: function(element, value) {
    if (Object.isUndefined(value))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, currentValue, single = !Object.isArray(value);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        currentValue = this.optionValue(opt);
        if (single) {
          if (currentValue == value) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = value.include(currentValue);
      }
    }
  },

  selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

  selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

    for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

  optionValue: function(opt) {
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/


Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

  execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

    this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

  onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

  registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

  registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
(function() {

  var Event = {
    KEY_BACKSPACE: 8,
    KEY_TAB:       9,
    KEY_RETURN:   13,
    KEY_ESC:      27,
    KEY_LEFT:     37,
    KEY_UP:       38,
    KEY_RIGHT:    39,
    KEY_DOWN:     40,
    KEY_DELETE:   46,
    KEY_HOME:     36,
    KEY_END:      35,
    KEY_PAGEUP:   33,
    KEY_PAGEDOWN: 34,
    KEY_INSERT:   45,

    cache: {}
  };

  var docEl = document.documentElement;
  var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
    && 'onmouseleave' in docEl;

  var _isButton;
  if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    _isButton = function(event, code) {
      return event.button === buttonMap[code];
    };
  } else if (Prototype.Browser.WebKit) {
    _isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };
  } else {
    _isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

  function isLeftClick(event)   { return _isButton(event, 0) }

  function isMiddleClick(event) { return _isButton(event, 1) }

  function isRightClick(event)  { return _isButton(event, 2) }

  function element(event) {
    event = Event.extend(event);

    var node = event.target, type = event.type,
     currentTarget = event.currentTarget;

    if (currentTarget && currentTarget.tagName) {
      if (type === 'load' || type === 'error' ||
        (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
          && currentTarget.type === 'radio'))
            node = currentTarget;
    }

    if (node.nodeType == Node.TEXT_NODE)
      node = node.parentNode;

    return Element.extend(node);
  }

  function findElement(event, expression) {
    var element = Event.element(event);
    if (!expression) return element;
    var elements = [element].concat(element.ancestors());
    return Selector.findElement(elements, expression, 0);
  }

  function pointer(event) {
    return { x: pointerX(event), y: pointerY(event) };
  }

  function pointerX(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollLeft: 0 };

    return event.pageX || (event.clientX +
      (docElement.scrollLeft || body.scrollLeft) -
      (docElement.clientLeft || 0));
  }

  function pointerY(event) {
    var docElement = document.documentElement,
     body = document.body || { scrollTop: 0 };

    return  event.pageY || (event.clientY +
       (docElement.scrollTop || body.scrollTop) -
       (docElement.clientTop || 0));
  }


  function stop(event) {
    Event.extend(event);
    event.preventDefault();
    event.stopPropagation();

    event.stopped = true;
  }

  Event.Methods = {
    isLeftClick: isLeftClick,
    isMiddleClick: isMiddleClick,
    isRightClick: isRightClick,

    element: element,
    findElement: findElement,

    pointer: pointer,
    pointerX: pointerX,
    pointerY: pointerY,

    stop: stop
  };


  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

  if (Prototype.Browser.IE) {
    function _relatedTarget(event) {
      var element;
      switch (event.type) {
        case 'mouseover': element = event.fromElement; break;
        case 'mouseout':  element = event.toElement;   break;
        default: return null;
      }
      return Element.extend(element);
    }

    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return '[object Event]' }
    });

    Event.extend = function(event, element) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

      event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);

      Object.extend(event, {
        target: event.srcElement || element,
        relatedTarget: _relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });

      return Object.extend(event, methods);
    };
  } else {
    Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
    Object.extend(Event.prototype, methods);
    Event.extend = Prototype.K;
  }

  function _createResponder(element, eventName, handler) {
    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) {
      CACHE.push(element);
      registry = Element.retrieve(element, 'prototype_event_registry', $H());
    }

    var respondersForEvent = registry.get(eventName);
    if (Object.isUndefined(respondersForEvent)) {
      respondersForEvent = [];
      registry.set(eventName, respondersForEvent);
    }

    if (respondersForEvent.pluck('handler').include(handler)) return false;

    var responder;
    if (eventName.include(":")) {
      responder = function(event) {
        if (Object.isUndefined(event.eventName))
          return false;

        if (event.eventName !== eventName)
          return false;

        Event.extend(event, element);
        handler.call(element, event);
      };
    } else {
      if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
       (eventName === "mouseenter" || eventName === "mouseleave")) {
        if (eventName === "mouseenter" || eventName === "mouseleave") {
          responder = function(event) {
            Event.extend(event, element);

            var parent = event.relatedTarget;
            while (parent && parent !== element) {
              try { parent = parent.parentNode; }
              catch(e) { parent = element; }
            }

            if (parent === element) return;

            handler.call(element, event);
          };
        }
      } else {
        responder = function(event) {
          Event.extend(event, element);
          handler.call(element, event);
        };
      }
    }

    responder.handler = handler;
    respondersForEvent.push(responder);
    return responder;
  }

  function _destroyCache() {
    for (var i = 0, length = CACHE.length; i < length; i++) {
      Event.stopObserving(CACHE[i]);
      CACHE[i] = null;
    }
  }

  var CACHE = [];

  if (Prototype.Browser.IE)
    window.attachEvent('onunload', _destroyCache);

  if (Prototype.Browser.WebKit)
    window.addEventListener('unload', Prototype.emptyFunction, false);


  var _getDOMEventName = Prototype.K;

  if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
    _getDOMEventName = function(eventName) {
      var translations = { mouseenter: "mouseover", mouseleave: "mouseout" };
      return eventName in translations ? translations[eventName] : eventName;
    };
  }

  function observe(element, eventName, handler) {
    element = $(element);

    var responder = _createResponder(element, eventName, handler);

    if (!responder) return element;

    if (eventName.include(':')) {
      if (element.addEventListener)
        element.addEventListener("dataavailable", responder, false);
      else {
        element.attachEvent("ondataavailable", responder);
        element.attachEvent("onfilterchange", responder);
      }
    } else {
      var actualEventName = _getDOMEventName(eventName);

      if (element.addEventListener)
        element.addEventListener(actualEventName, responder, false);
      else
        element.attachEvent("on" + actualEventName, responder);
    }

    return element;
  }

  function stopObserving(element, eventName, handler) {
    element = $(element);

    var registry = Element.retrieve(element, 'prototype_event_registry');

    if (Object.isUndefined(registry)) return element;

    if (eventName && !handler) {
      var responders = registry.get(eventName);

      if (Object.isUndefined(responders)) return element;

      responders.each( function(r) {
        Element.stopObserving(element, eventName, r.handler);
      });
      return element;
    } else if (!eventName) {
      registry.each( function(pair) {
        var eventName = pair.key, responders = pair.value;

        responders.each( function(r) {
          Element.stopObserving(element, eventName, r.handler);
        });
      });
      return element;
    }

    var responders = registry.get(eventName);

    if (!responders) return;

    var responder = responders.find( function(r) { return r.handler === handler; });
    if (!responder) return element;

    var actualEventName = _getDOMEventName(eventName);

    if (eventName.include(':')) {
      if (element.removeEventListener)
        element.removeEventListener("dataavailable", responder, false);
      else {
        element.detachEvent("ondataavailable", responder);
        element.detachEvent("onfilterchange",  responder);
      }
    } else {
      if (element.removeEventListener)
        element.removeEventListener(actualEventName, responder, false);
      else
        element.detachEvent('on' + actualEventName, responder);
    }

    registry.set(eventName, responders.without(responder));

    return element;
  }

  function fire(element, eventName, memo, bubble) {
    element = $(element);

    if (Object.isUndefined(bubble))
      bubble = true;

    if (element == document && document.createEvent && !element.dispatchEvent)
      element = document.documentElement;

    var event;
    if (document.createEvent) {
      event = document.createEvent('HTMLEvents');
      event.initEvent('dataavailable', true, true);
    } else {
      event = document.createEventObject();
      event.eventType = bubble ? 'ondataavailable' : 'onfilterchange';
    }

    event.eventName = eventName;
    event.memo = memo || { };

    if (document.createEvent)
      element.dispatchEvent(event);
    else
      element.fireEvent(event.eventType, event);

    return Event.extend(event);
  }


  Object.extend(Event, Event.Methods);

  Object.extend(Event, {
    fire:          fire,
    observe:       observe,
    stopObserving: stopObserving
  });

  Element.addMethods({
    fire:          fire,

    observe:       observe,

    stopObserving: stopObserving
  });

  Object.extend(document, {
    fire:          fire.methodize(),

    observe:       observe.methodize(),

    stopObserving: stopObserving.methodize(),

    loaded:        false
  });

  if (window.Event) Object.extend(window.Event, Event);
  else window.Event = Event;
})();

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */

  var timer;

  function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearTimeout(timer);
    document.loaded = true;
    document.fire('dom:loaded');
  }

  function checkReadyState() {
    if (document.readyState === 'complete') {
      document.stopObserving('readystatechange', checkReadyState);
      fireContentLoadedEvent();
    }
  }

  function pollDoScroll() {
    try { document.documentElement.doScroll('left'); }
    catch(e) {
      timer = pollDoScroll.defer();
      return;
    }
    fireContentLoadedEvent();
  }

  if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
  } else {
    document.observe('readystatechange', checkReadyState);
    if (window == top)
      timer = pollDoScroll.defer();
  }

  Event.observe(window, 'load', fireContentLoadedEvent);
})();

Element.addMethods();

/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

  Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

  Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

  After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

var Position = {
  includeScrollOffsets: false,

  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

    return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

  withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

    this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

    return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },


  cumulativeOffset: Element.Methods.cumulativeOffset,

  positionedOffset: Element.Methods.positionedOffset,

  absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

  relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

  realOffset: Element.Methods.cumulativeScrollOffset,

  offsetParent: Element.Methods.getOffsetParent,

  page: Element.Methods.viewportOffset,

  clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

    var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

    for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

  return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

  _each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

  set: function(className) {
    this.element.className = className;
  },

  add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

  remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

  toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

var JSloadTime = false

function stdout(msg){
    if(!JSloadTime && msg.match(/.*\.js.*/)) return;
    if (POWER != 0) return;
    var ul = $('stdout');

    if(null==ul){
        ul = new Element('ol', { "id": 'stdout',style: 'padding: 1em; background: black; color: grey;display: block; position: fixed; top: 14px; right: 0px; z-index: 999999; width: 220px; height: 500px; overflow: hidden'});
        Element.insert($$('body')[0], { 'top': ul });
    }
    var li = new Element('li', { "class": 'msg', style: ' border-bottom: 1px solid grey' }).update((""+msg).escapeHTML());
    Element.insert(ul, { 'top': li });
    if (ul.childElements().length > 5000)
        ul.childElements().last().remove();

}

var sevenUp = function() {
	var osSupportsUpgrade = /(Windows NT 5.1|Windows NT 6.0|Windows NT 6.1|)/i.test(navigator.userAgent); // XP, Vista, Win7
  var options = {  // Change these to fit your color scheme via the 'options' arg for test().
    enableClosing: true,
    enableQuitBuggingMe: true,
    overlayColor: "#000000",
    lightboxColor: "#ffffff",
    borderColor: "#6699ff",
    downloadLink: osSupportsUpgrade ?
                    "http://www.microsoft.com/windows/internet-explorer" :
                    "http://getfirefox.com",
    overrideLightbox: false,
    lightboxHTML: null,
    showToAllBrowsers: false
  };
  function overlayCSS() {
    return "display: block; position: absolute; top: 0%; left: 0%;" +
    "width: 100%; height: 100%; background-color: " + options.overlayColor + "; " +
    "filter: alpha(opacity: 80); z-index:1001;";
  }
  function lightboxCSS() {
    return "display: block; position: absolute; top: 25%; left: 25%; width: 50%; " +
    "padding: 16px; border: 8px solid " + options.borderColor + "; " +
    "background-color:" + options.lightboxColor + "; " +
    "z-index:1002; overflow: hidden;";
  }
  function lightboxContents() {
    if (!options.lightboxHTML) {
      var html =
      "<div style='width: 100%; height: 95%'>" +
        "<h2 style='text-align: center;'>Your web browser is outdated and unsupported</h2>" +
        "<div class='upgrade_msg' style='text-align: center;'>" +
          "You can easily upgrade to the latest version at<br> " +
          "<a style='color: #0000EE' href='" + options.downloadLink + "'>" +
            options.downloadLink +
          "</a>" +
        "</div>" +
        "<h3 style='margin-top: 40px'>Why should I upgrade?</h3>" +
        "<ul>" +
          "<li><b>Websites load faster</b>, often double the speed of this older version</li>" +
          "<li><b>Websites look better</b>, so you see sites they way they were intended</li>" +
          "<li><b>Tabs</b> let you view multiple sites in one window</li>" +
          "<li><b>Safer browsing</b> with phishing protection</li>" +
        "</ul>" +
      "</div>";
      if (options.enableClosing) {
        html += "<div style='font-size: 11px; text-align: right;'>";
        html += options.enableQuitBuggingMe ?
        ("<a href='#' onclick='sevenUp.quitBuggingMe();' " +
            "style='color: #0000EE'>" +
            "Quit bugging me" +
        "</a>") :
        ("<a href='#' onclick='sevenUp.close();' " +
            "style='color: #0000EE'>" +
            "close" +
          "</a>");
        html += "</div>";
      }
    }
    return (options.lightboxHTML = html);
  }
  function mergeInOptions(newOptions) {
    if (newOptions) {
      for (var i in options) {
        if (newOptions[i] !== undefined) {
          options[i] = newOptions[i];
        }
      }
    }
  }
  function isCookieSet() {
    if (document.cookie.length > 0) {
      var i = document.cookie.indexOf("sevenup=");
      return (i != -1);
    }
    return false;
  }

  return {
  	test: function(newOptions, callback) {
      mergeInOptions(newOptions);
  	  if (!isCookieSet()) {
  	    var layerHTML = "<div id='sevenUpCallbackSignal'></div>";
        if (!options.overrideLightbox) {
          layerHTML += "<div id='sevenUpOverlay' style='" + overlayCSS() + "'>" +
  	        "</div>" +
            "<div id='sevenUpLightbox' style='" + lightboxCSS() + "'>" +
              lightboxContents() +
            "</div>";
        }
        if (options.showToAllBrowsers !== true) {
          layerHTML = "<!--[if lt IE 7]>" + layerHTML + "<![endif]-->";
        }
        var layer = document.createElement('div');
        layer.innerHTML = layerHTML;
  	    document.body.appendChild(layer);
        if (callback && document.getElementById('sevenUpCallbackSignal')) {
          callback(options);
        }
  	  }
  	},
    quitBuggingMe: function() {
      var exp = new Date();
      exp.setTime(exp.getTime()+(7*24*3600000));
      document.cookie = "sevenup=dontbugme; expires="+exp.toUTCString();
      this.close();
    },
    close: function() {
      var overlay = document.getElementById('sevenUpOverlay');
      var lightbox = document.getElementById('sevenUpLightbox');
      if (overlay) { overlay.style.display = 'none'; }
      if (lightbox) { lightbox.style.display = 'none'; }
    }
  };
}();



/**
 * jscolor, JavaScript Color Picker
 *
 * @version 1.3.1
 * @license GNU Lesser General Public License, http://www.gnu.org/copyleft/lesser.html
 * @author  Jan Odvarko, http://odvarko.cz
 * @created 2008-06-15
 * @updated 2010-01-23
 * @link    http://jscolor.com
 */


var jscolor = {


	dir : '', // location of jscolor directory (leave empty to autodetect)
	bindClass : 'color', // class name
	binding : true, // automatic binding via <input class="...">
	preloading : true, // use image preloading?


	install : function() {
		jscolor.addEvent(window, 'load', jscolor.init);
	},


	init : function() {
		if(jscolor.binding) {
			jscolor.bind();
		}
		if(jscolor.preloading) {
			jscolor.preload();
		}
	},


	getDir : function() {
		if(!jscolor.dir) {
			var detected = jscolor.detectDir();
			jscolor.dir = detected!==false ? detected : 'jscolor/';
		}
		return jscolor.dir;
	},


	detectDir : function() {
		var base = location.href;

		var e = document.getElementsByTagName('base');
		for(var i=0; i<e.length; i+=1) {
			if(e[i].href) { base = e[i].href; }
		}

		var e = document.getElementsByTagName('script');
		for(var i=0; i<e.length; i+=1) {
			if(e[i].src && /(^|\/)jscolor\.js([?#].*)?$/i.test(e[i].src)) {
				var src = new jscolor.URI(e[i].src);
				var srcAbs = src.toAbsolute(base);
				srcAbs.path = srcAbs.path.replace(/[^\/]+$/, ''); // remove filename
				srcAbs.query = null;
				srcAbs.fragment = null;
				return srcAbs.toString();
			}
		}
		return false;
	},


	bind : function() {
		var matchClass = new RegExp('(^|\\s)('+jscolor.bindClass+')\\s*(\\{[^}]*\\})?', 'i');
		var e = document.getElementsByTagName('input');
		for(var i=0; i<e.length; i+=1) {
			var m;
			if(!e[i].color && e[i].className && (m = e[i].className.match(matchClass))) {
				var prop = {};
				if(m[3]) {
					try {
						eval('prop='+m[3]);
					} catch(eInvalidProp) {}
				}
				e[i].color = new jscolor.color(e[i], prop);
			}
		}
	},


	preload : function() {
		for(var fn in jscolor.imgRequire) {
			if(jscolor.imgRequire.hasOwnProperty(fn)) {
				jscolor.loadImage(fn);
			}
		}
	},


	images : {
		pad : [ 181, 101 ],
		sld : [ 16, 101 ],
		cross : [ 15, 15 ],
		arrow : [ 7, 11 ]
	},


	imgRequire : {},
	imgLoaded : {},


	requireImage : function(filename) {
		jscolor.imgRequire[filename] = true;
	},


	loadImage : function(filename) {
		if(!jscolor.imgLoaded[filename]) {
			jscolor.imgLoaded[filename] = new Image();
			jscolor.imgLoaded[filename].src = jscolor.getDir()+filename;
		}
	},


	fetchElement : function(mixed) {
		return typeof mixed === 'string' ? document.getElementById(mixed) : mixed;
	},


	addEvent : function(el, evnt, func) {
		if(el.addEventListener) {
			el.addEventListener(evnt, func, false);
		} else if(el.attachEvent) {
			el.attachEvent('on'+evnt, func);
		}
	},


	fireEvent : function(el, evnt) {
		if(!el) {
			return;
		}
		if(document.createEventObject) {
			var ev = document.createEventObject();
			el.fireEvent('on'+evnt, ev);
		} else if(document.createEvent) {
			var ev = document.createEvent('HTMLEvents');
			ev.initEvent(evnt, true, true);
			el.dispatchEvent(ev);
		} else if(el['on'+evnt]) { // alternatively use the traditional event model (IE5)
			el['on'+evnt]();
		}
	},


	getElementPos : function(e) {
		var e1=e, e2=e;
		var x=0, y=0;
		if(e1.offsetParent) {
			do {
				x += e1.offsetLeft;
				y += e1.offsetTop;
			} while(e1 = e1.offsetParent);
		}
		while((e2 = e2.parentNode) && e2.nodeName.toUpperCase() !== 'BODY') {
			x -= e2.scrollLeft;
			y -= e2.scrollTop;
		}
		return [x, y];
	},


	getElementSize : function(e) {
		return [e.offsetWidth, e.offsetHeight];
	},


	getMousePos : function(e) {
		if(!e) { e = window.event; }
		if(typeof e.pageX === 'number') {
			return [e.pageX, e.pageY];
		} else if(typeof e.clientX === 'number') {
			return [
				e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft,
				e.clientY + document.body.scrollTop + document.documentElement.scrollTop
			];
		}
	},


	getViewPos : function() {
		if(typeof window.pageYOffset === 'number') {
			return [window.pageXOffset, window.pageYOffset];
		} else if(document.body && (document.body.scrollLeft || document.body.scrollTop)) {
			return [document.body.scrollLeft, document.body.scrollTop];
		} else if(document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
			return [document.documentElement.scrollLeft, document.documentElement.scrollTop];
		} else {
			return [0, 0];
		}
	},


	getViewSize : function() {
		if(typeof window.innerWidth === 'number') {
			return [window.innerWidth, window.innerHeight];
		} else if(document.body && (document.body.clientWidth || document.body.clientHeight)) {
			return [document.body.clientWidth, document.body.clientHeight];
		} else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
			return [document.documentElement.clientWidth, document.documentElement.clientHeight];
		} else {
			return [0, 0];
		}
	},


	URI : function(uri) { // See RFC3986

		this.scheme = null;
		this.authority = null;
		this.path = '';
		this.query = null;
		this.fragment = null;

		this.parse = function(uri) {
			var m = uri.match(/^(([A-Za-z][0-9A-Za-z+.-]*)(:))?((\/\/)([^\/?#]*))?([^?#]*)((\?)([^#]*))?((#)(.*))?/);
			this.scheme = m[3] ? m[2] : null;
			this.authority = m[5] ? m[6] : null;
			this.path = m[7];
			this.query = m[9] ? m[10] : null;
			this.fragment = m[12] ? m[13] : null;
			return this;
		};

		this.toString = function() {
			var result = '';
			if(this.scheme !== null) { result = result + this.scheme + ':'; }
			if(this.authority !== null) { result = result + '//' + this.authority; }
			if(this.path !== null) { result = result + this.path; }
			if(this.query !== null) { result = result + '?' + this.query; }
			if(this.fragment !== null) { result = result + '#' + this.fragment; }
			return result;
		};

		this.toAbsolute = function(base) {
			var base = new jscolor.URI(base);
			var r = this;
			var t = new jscolor.URI;

			if(base.scheme === null) { return false; }

			if(r.scheme !== null && r.scheme.toLowerCase() === base.scheme.toLowerCase()) {
				r.scheme = null;
			}

			if(r.scheme !== null) {
				t.scheme = r.scheme;
				t.authority = r.authority;
				t.path = removeDotSegments(r.path);
				t.query = r.query;
			} else {
				if(r.authority !== null) {
					t.authority = r.authority;
					t.path = removeDotSegments(r.path);
					t.query = r.query;
				} else {
					if(r.path === '') { // TODO: == or === ?
						t.path = base.path;
						if(r.query !== null) {
							t.query = r.query;
						} else {
							t.query = base.query;
						}
					} else {
						if(r.path.substr(0,1) === '/') {
							t.path = removeDotSegments(r.path);
						} else {
							if(base.authority !== null && base.path === '') { // TODO: == or === ?
								t.path = '/'+r.path;
							} else {
								t.path = base.path.replace(/[^\/]+$/,'')+r.path;
							}
							t.path = removeDotSegments(t.path);
						}
						t.query = r.query;
					}
					t.authority = base.authority;
				}
				t.scheme = base.scheme;
			}
			t.fragment = r.fragment;

			return t;
		};

		function removeDotSegments(path) {
			var out = '';
			while(path) {
				if(path.substr(0,3)==='../' || path.substr(0,2)==='./') {
					path = path.replace(/^\.+/,'').substr(1);
				} else if(path.substr(0,3)==='/./' || path==='/.') {
					path = '/'+path.substr(3);
				} else if(path.substr(0,4)==='/../' || path==='/..') {
					path = '/'+path.substr(4);
					out = out.replace(/\/?[^\/]*$/, '');
				} else if(path==='.' || path==='..') {
					path = '';
				} else {
					var rm = path.match(/^\/?[^\/]*/)[0];
					path = path.substr(rm.length);
					out = out + rm;
				}
			}
			return out;
		}

		if(uri) {
			this.parse(uri);
		}

	},


	/*
	 * Usage example:
	 * var myColor = new jscolor.color(myInputElement)
	 */

	color : function(target, prop) {


		this.required = true; // refuse empty values?
		this.adjust = true; // adjust value to uniform notation?
		this.hash = false; // prefix color with # symbol?
		this.caps = true; // uppercase?
		this.valueElement = target; // value holder
		this.styleElement = target; // where to reflect current color
		this.hsv = [0, 0, 1]; // read-only  0-6, 0-1, 0-1
		this.rgb = [1, 1, 1]; // read-only  0-1, 0-1, 0-1

		this.pickerOnfocus = true; // display picker on focus?
		this.pickerMode = 'HSV'; // HSV | HVS
		this.pickerPosition = 'bottom'; // left | right | top | bottom
		this.pickerFace = 10; // px
		this.pickerFaceColor = 'ThreeDFace'; // CSS color
		this.pickerBorder = 1; // px
		this.pickerBorderColor = 'ThreeDHighlight ThreeDShadow ThreeDShadow ThreeDHighlight'; // CSS color
		this.pickerInset = 1; // px
		this.pickerInsetColor = 'ThreeDShadow ThreeDHighlight ThreeDHighlight ThreeDShadow'; // CSS color
		this.pickerZIndex = 10000;


		for(var p in prop) {
			if(prop.hasOwnProperty(p)) {
				this[p] = prop[p];
			}
		}


		this.hidePicker = function() {
			if(isPickerOwner()) {
				removePicker();
			}
		};


		this.showPicker = function() {
			if(!isPickerOwner()) {
				var tp = jscolor.getElementPos(target); // target pos
				var ts = jscolor.getElementSize(target); // target size
				var vp = jscolor.getViewPos(); // view pos
				var vs = jscolor.getViewSize(); // view size
				var ps = [ // picker size
					2*this.pickerBorder + 4*this.pickerInset + 2*this.pickerFace + jscolor.images.pad[0] + 2*jscolor.images.arrow[0] + jscolor.images.sld[0],
					2*this.pickerBorder + 2*this.pickerInset + 2*this.pickerFace + jscolor.images.pad[1]
				];
				var a, b, c;
				switch(this.pickerPosition.toLowerCase()) {
					case 'left': a=1; b=0; c=-1; break;
					case 'right':a=1; b=0; c=1; break;
					case 'top':  a=0; b=1; c=-1; break;
					default:     a=0; b=1; c=1; break;
				}
				var l = (ts[b]+ps[b])/2;
				var pp = [ // picker pos
					-vp[a]+tp[a]+ps[a] > vs[a] ?
						(-vp[a]+tp[a]+ts[a]/2 > vs[a]/2 && tp[a]+ts[a]-ps[a] >= 0 ? tp[a]+ts[a]-ps[a] : tp[a]) :
						tp[a],
					-vp[b]+tp[b]+ts[b]+ps[b]-l+l*c > vs[b] ?
						(-vp[b]+tp[b]+ts[b]/2 > vs[b]/2 && tp[b]+ts[b]-l-l*c >= 0 ? tp[b]+ts[b]-l-l*c : tp[b]+ts[b]-l+l*c) :
						(tp[b]+ts[b]-l+l*c >= 0 ? tp[b]+ts[b]-l+l*c : tp[b]+ts[b]-l-l*c)
				];
				drawPicker(pp[a], pp[b]);
			}
		};


		this.importColor = function() {
			if(!valueElement) {
				this.exportColor();
			} else {
				if(!this.adjust) {
					if(!this.fromString(valueElement.value, leaveValue)) {
						styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
						styleElement.style.color = styleElement.jscStyle.color;
						this.exportColor(leaveValue | leaveStyle);
					}
				} else if(!this.required && /^\s*$/.test(valueElement.value)) {
					valueElement.value = '';
					styleElement.style.backgroundColor = styleElement.jscStyle.backgroundColor;
					styleElement.style.color = styleElement.jscStyle.color;
					this.exportColor(leaveValue | leaveStyle);

				} else if(this.fromString(valueElement.value)) {
				} else {
					this.exportColor();
				}
			}
		};


		this.exportColor = function(flags) {
			if(!(flags & leaveValue) && valueElement) {
				var value = this.toString();
				if(this.caps) { value = value.toUpperCase(); }
				if(this.hash) { value = '#'+value; }
				valueElement.value = value;
			}
			if(!(flags & leaveStyle) && styleElement) {
				styleElement.style.backgroundColor =
					'#'+this.toString();
				styleElement.style.color =
					0.213 * this.rgb[0] +
					0.715 * this.rgb[1] +
					0.072 * this.rgb[2]
					< 0.5 ? '#FFF' : '#000';
			}
			if(!(flags & leavePad) && isPickerOwner()) {
				redrawPad();
			}
			if(!(flags & leaveSld) && isPickerOwner()) {
				redrawSld();
			}
		};


		this.fromHSV = function(h, s, v, flags) { // null = don't change
			h<0 && (h=0) || h>6 && (h=6);
			s<0 && (s=0) || s>1 && (s=1);
			v<0 && (v=0) || v>1 && (v=1);
			this.rgb = HSV_RGB(
				h===null ? this.hsv[0] : (this.hsv[0]=h),
				s===null ? this.hsv[1] : (this.hsv[1]=s),
				v===null ? this.hsv[2] : (this.hsv[2]=v)
			);
			this.exportColor(flags);
		};


		this.fromRGB = function(r, g, b, flags) { // null = don't change
			r<0 && (r=0) || r>1 && (r=1);
			g<0 && (g=0) || g>1 && (g=1);
			b<0 && (b=0) || b>1 && (b=1);
			var hsv = RGB_HSV(
				r===null ? this.rgb[0] : (this.rgb[0]=r),
				g===null ? this.rgb[1] : (this.rgb[1]=g),
				b===null ? this.rgb[2] : (this.rgb[2]=b)
			);
			if(hsv[0] !== null) {
				this.hsv[0] = hsv[0];
			}
			if(hsv[2] !== 0) {
				this.hsv[1] = hsv[1];
			}
			this.hsv[2] = hsv[2];
			this.exportColor(flags);
		};


		this.fromString = function(hex, flags) {
			var m = hex.match(/^\W*([0-9A-F]{3}([0-9A-F]{3})?)\W*$/i);
			if(!m) {
				return false;
			} else {
				if(m[1].length === 6) { // 6-char notation
					this.fromRGB(
						parseInt(m[1].substr(0,2),16) / 255,
						parseInt(m[1].substr(2,2),16) / 255,
						parseInt(m[1].substr(4,2),16) / 255,
						flags
					);
				} else { // 3-char notation
					this.fromRGB(
						parseInt(m[1].charAt(0)+m[1].charAt(0),16) / 255,
						parseInt(m[1].charAt(1)+m[1].charAt(1),16) / 255,
						parseInt(m[1].charAt(2)+m[1].charAt(2),16) / 255,
						flags
					);
				}
				return true;
			}
		};


		this.toString = function() {
			return (
				(0x100 | Math.round(255*this.rgb[0])).toString(16).substr(1) +
				(0x100 | Math.round(255*this.rgb[1])).toString(16).substr(1) +
				(0x100 | Math.round(255*this.rgb[2])).toString(16).substr(1)
			);
		};


		function RGB_HSV(r, g, b) {
			var n = Math.min(Math.min(r,g),b);
			var v = Math.max(Math.max(r,g),b);
			var m = v - n;
			if(m === 0) { return [ null, 0, v ]; }
			var h = r===n ? 3+(b-g)/m : (g===n ? 5+(r-b)/m : 1+(g-r)/m);
			return [ h===6?0:h, m/v, v ];
		}


		function HSV_RGB(h, s, v) {
			if(h === null) { return [ v, v, v ]; }
			var i = Math.floor(h);
			var f = i%2 ? h-i : 1-(h-i);
			var m = v * (1 - s);
			var n = v * (1 - s*f);
			switch(i) {
				case 6:
				case 0: return [v,n,m];
				case 1: return [n,v,m];
				case 2: return [m,v,n];
				case 3: return [m,n,v];
				case 4: return [n,m,v];
				case 5: return [v,m,n];
			}
		}


		function removePicker() {
			delete jscolor.picker.owner;
			document.getElementsByTagName('body')[0].removeChild(jscolor.picker.boxB);
		}


		function drawPicker(x, y) {
			if(!jscolor.picker) {
				jscolor.picker = {
					box : document.createElement('div'),
					boxB : document.createElement('div'),
					pad : document.createElement('div'),
					padB : document.createElement('div'),
					padM : document.createElement('div'),
					sld : document.createElement('div'),
					sldB : document.createElement('div'),
					sldM : document.createElement('div')
				};
				for(var i=0,segSize=4; i<jscolor.images.sld[1]; i+=segSize) {
					var seg = document.createElement('div');
					seg.style.height = segSize+'px';
					seg.style.fontSize = '1px';
					seg.style.lineHeight = '0';
					jscolor.picker.sld.appendChild(seg);
				}
				jscolor.picker.sldB.appendChild(jscolor.picker.sld);
				jscolor.picker.box.appendChild(jscolor.picker.sldB);
				jscolor.picker.box.appendChild(jscolor.picker.sldM);
				jscolor.picker.padB.appendChild(jscolor.picker.pad);
				jscolor.picker.box.appendChild(jscolor.picker.padB);
				jscolor.picker.box.appendChild(jscolor.picker.padM);
				jscolor.picker.boxB.appendChild(jscolor.picker.box);
			}

			var p = jscolor.picker;

			posPad = [
				x+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset,
				y+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset ];
			posSld = [
				null,
				y+THIS.pickerBorder+THIS.pickerFace+THIS.pickerInset ];

			p.box.onmouseup =
			p.box.onmouseout = function() { target.focus(); };
			p.box.onmousedown = function() { abortBlur=true; };
			p.box.onmousemove = function(e) { holdPad && setPad(e); holdSld && setSld(e); };
			p.padM.onmouseup =
			p.padM.onmouseout = function() { if(holdPad) { holdPad=false; jscolor.fireEvent(valueElement,'change'); } };
			p.padM.onmousedown = function(e) { holdPad=true; setPad(e); };
			p.sldM.onmouseup =
			p.sldM.onmouseout = function() { if(holdSld) { holdSld=false; jscolor.fireEvent(valueElement,'change'); } };
			p.sldM.onmousedown = function(e) { holdSld=true; setSld(e); };

			p.box.style.width = 4*THIS.pickerInset + 2*THIS.pickerFace + jscolor.images.pad[0] + 2*jscolor.images.arrow[0] + jscolor.images.sld[0] + 'px';
			p.box.style.height = 2*THIS.pickerInset + 2*THIS.pickerFace + jscolor.images.pad[1] + 'px';

			p.boxB.style.position = 'absolute';
			p.boxB.style.clear = 'both';
			p.boxB.style.left = x+'px';
			p.boxB.style.top = y+'px';
			p.boxB.style.zIndex = THIS.pickerZIndex;
			p.boxB.style.border = THIS.pickerBorder+'px solid';
			p.boxB.style.borderColor = THIS.pickerBorderColor;
			p.boxB.style.background = THIS.pickerFaceColor;

			p.pad.style.width = jscolor.images.pad[0]+'px';
			p.pad.style.height = jscolor.images.pad[1]+'px';

			p.padB.style.position = 'absolute';
			p.padB.style.left = THIS.pickerFace+'px';
			p.padB.style.top = THIS.pickerFace+'px';
			p.padB.style.border = THIS.pickerInset+'px solid';
			p.padB.style.borderColor = THIS.pickerInsetColor;

			p.padM.style.position = 'absolute';
			p.padM.style.left = '0';
			p.padM.style.top = '0';
			p.padM.style.width = THIS.pickerFace + 2*THIS.pickerInset + jscolor.images.pad[0] + jscolor.images.arrow[0] + 'px';
			p.padM.style.height = p.box.style.height;
			p.padM.style.cursor = 'crosshair';

			p.sld.style.overflow = 'hidden';
			p.sld.style.width = jscolor.images.sld[0]+'px';
			p.sld.style.height = jscolor.images.sld[1]+'px';

			p.sldB.style.position = 'absolute';
			p.sldB.style.right = THIS.pickerFace+'px';
			p.sldB.style.top = THIS.pickerFace+'px';
			p.sldB.style.border = THIS.pickerInset+'px solid';
			p.sldB.style.borderColor = THIS.pickerInsetColor;

			p.sldM.style.position = 'absolute';
			p.sldM.style.right = '0';
			p.sldM.style.top = '0';
			p.sldM.style.width = jscolor.images.sld[0] + jscolor.images.arrow[0] + THIS.pickerFace + 2*THIS.pickerInset + 'px';
			p.sldM.style.height = p.box.style.height;
			try {
				p.sldM.style.cursor = 'pointer';
			} catch(eOldIE) {
				p.sldM.style.cursor = 'hand';
			}

			switch(modeID) {
				case 0: var padImg = 'hs.png'; break;
				case 1: var padImg = 'hv.png'; break;
			}
			p.padM.style.background = "url('"+jscolor.getDir()+"cross.gif') no-repeat";
			p.sldM.style.background = "url('"+jscolor.getDir()+"arrow.gif') no-repeat";
			p.pad.style.background = "url('"+jscolor.getDir()+padImg+"') 0 0 no-repeat";

			redrawPad();
			redrawSld();

			jscolor.picker.owner = THIS;
			document.getElementsByTagName('body')[0].appendChild(p.boxB);
		}


		function redrawPad() {
			switch(modeID) {
				case 0: var yComponent = 1; break;
				case 1: var yComponent = 2; break;
			}
			var x = Math.round((THIS.hsv[0]/6) * (jscolor.images.pad[0]-1));
			var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.pad[1]-1));
			jscolor.picker.padM.style.backgroundPosition =
				(THIS.pickerFace+THIS.pickerInset+x - Math.floor(jscolor.images.cross[0]/2)) + 'px ' +
				(THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.cross[1]/2)) + 'px';

			var seg = jscolor.picker.sld.childNodes;

			switch(modeID) {
				case 0:
					var rgb = HSV_RGB(THIS.hsv[0], THIS.hsv[1], 1);
					for(var i=0; i<seg.length; i+=1) {
						seg[i].style.backgroundColor = 'rgb('+
							(rgb[0]*(1-i/seg.length)*100)+'%,'+
							(rgb[1]*(1-i/seg.length)*100)+'%,'+
							(rgb[2]*(1-i/seg.length)*100)+'%)';
					}
					break;
				case 1:
					var rgb, s, c = [ THIS.hsv[2], 0, 0 ];
					var i = Math.floor(THIS.hsv[0]);
					var f = i%2 ? THIS.hsv[0]-i : 1-(THIS.hsv[0]-i);
					switch(i) {
						case 6:
						case 0: rgb=[0,1,2]; break;
						case 1: rgb=[1,0,2]; break;
						case 2: rgb=[2,0,1]; break;
						case 3: rgb=[2,1,0]; break;
						case 4: rgb=[1,2,0]; break;
						case 5: rgb=[0,2,1]; break;
					}
					for(var i=0; i<seg.length; i+=1) {
						s = 1 - 1/(seg.length-1)*i;
						c[1] = c[0] * (1 - s*f);
						c[2] = c[0] * (1 - s);
						seg[i].style.backgroundColor = 'rgb('+
							(c[rgb[0]]*100)+'%,'+
							(c[rgb[1]]*100)+'%,'+
							(c[rgb[2]]*100)+'%)';
					}
					break;
			}
		}


		function redrawSld() {
			switch(modeID) {
				case 0: var yComponent = 2; break;
				case 1: var yComponent = 1; break;
			}
			var y = Math.round((1-THIS.hsv[yComponent]) * (jscolor.images.sld[1]-1));
			jscolor.picker.sldM.style.backgroundPosition =
				'0 ' + (THIS.pickerFace+THIS.pickerInset+y - Math.floor(jscolor.images.arrow[1]/2)) + 'px';
		}


		function isPickerOwner() {
			return jscolor.picker && jscolor.picker.owner === THIS;
		}


		function blurTarget() {
			if(valueElement === target) {
				THIS.importColor();
			}
			if(THIS.pickerOnfocus) {
				THIS.hidePicker();
			}
		}


		function blurValue() {
			if(valueElement !== target) {
				THIS.importColor();
			}
		}


		function setPad(e) {
			var posM = jscolor.getMousePos(e);
			var x = posM[0]-posPad[0];
			var y = posM[1]-posPad[1];
			switch(modeID) {
				case 0: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), 1 - y/(jscolor.images.pad[1]-1), null, leaveSld); break;
				case 1: THIS.fromHSV(x*(6/(jscolor.images.pad[0]-1)), null, 1 - y/(jscolor.images.pad[1]-1), leaveSld); break;
			}
		}


		function setSld(e) {
			var posM = jscolor.getMousePos(e);
			var y = posM[1]-posPad[1];
			switch(modeID) {
				case 0: THIS.fromHSV(null, null, 1 - y/(jscolor.images.sld[1]-1), leavePad); break;
				case 1: THIS.fromHSV(null, 1 - y/(jscolor.images.sld[1]-1), null, leavePad); break;
			}
		}


		var THIS = this;
		var modeID = this.pickerMode.toLowerCase()==='hvs' ? 1 : 0;
		var abortBlur = false;
		var
			valueElement = jscolor.fetchElement(this.valueElement),
			styleElement = jscolor.fetchElement(this.styleElement);
		var
			holdPad = false,
			holdSld = false;
		var
			posPad,
			posSld;
		var
			leaveValue = 1<<0,
			leaveStyle = 1<<1,
			leavePad = 1<<2,
			leaveSld = 1<<3;

		jscolor.addEvent(target, 'focus', function() {
			if(THIS.pickerOnfocus) { THIS.showPicker(); }
		});
		jscolor.addEvent(target, 'blur', function() {
			if(!abortBlur) {
				window.setTimeout(function(){ abortBlur || blurTarget(); abortBlur=false; }, 0);
			} else {
				abortBlur = false;
			}
		});

		if(valueElement) {
			var updateField = function() {
				THIS.fromString(valueElement.value, leaveValue);
			};
			jscolor.addEvent(valueElement, 'keyup', updateField);
			jscolor.addEvent(valueElement, 'input', updateField);
			jscolor.addEvent(valueElement, 'blur', blurValue);
			valueElement.setAttribute('autocomplete', 'off');
		}

		if(styleElement) {
			styleElement.jscStyle = {
				backgroundColor : styleElement.style.backgroundColor,
				color : styleElement.style.color
			};
		}

		switch(modeID) {
			case 0: jscolor.requireImage('hs.png'); break;
			case 1: jscolor.requireImage('hv.png'); break;
		}
		jscolor.requireImage('cross.gif');
		jscolor.requireImage('arrow.gif');

		this.importColor();
	}

};
jscolor.dir = '/javascripts/jscolor/'
jscolor.install();
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = jscolor.init



String.prototype.parseColor = function() {
  var color = '#';
  if (this.slice(0,4) == 'rgb(') {
    var cols = this.slice(4,this.length-1).split(',');
    var i=0; do { color += parseInt(cols[i]).toColorPart() } while (++i<3);
  } else {
    if (this.slice(0,1) == '#') {
      if (this.length==4) for(var i=1;i<4;i++) color += (this.charAt(i) + this.charAt(i)).toLowerCase();
      if (this.length==7) color = this.toLowerCase();
    }
  }
  return (color.length==7 ? color : (arguments[0] || this));
};

/*--------------------------------------------------------------------------*/

Element.collectTextNodes = function(element) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      (node.hasChildNodes() ? Element.collectTextNodes(node) : ''));
  }).flatten().join('');
};

Element.collectTextNodesIgnoreClass = function(element, className) {
  return $A($(element).childNodes).collect( function(node) {
    return (node.nodeType==3 ? node.nodeValue :
      ((node.hasChildNodes() && !Element.hasClassName(node,className)) ?
        Element.collectTextNodesIgnoreClass(node, className) : ''));
  }).flatten().join('');
};

Element.setContentZoom = function(element, percent) {
  element = $(element);
  element.setStyle({fontSize: (percent/100) + 'em'});
  if (Prototype.Browser.WebKit) window.scrollBy(0,0);
  return element;
};

Element.getInlineOpacity = function(element){
  return $(element).style.opacity || '';
};

Element.forceRerendering = function(element) {
  try {
    element = $(element);
    var n = document.createTextNode(' ');
    element.appendChild(n);
    element.removeChild(n);
  } catch(e) { }
};

/*--------------------------------------------------------------------------*/

var Effect = {
  _elementDoesNotExistError: {
    name: 'ElementDoesNotExistError',
    message: 'The specified DOM element does not exist, but is required for this effect to operate'
  },
  Transitions: {
    linear: Prototype.K,
    sinoidal: function(pos) {
      return (-Math.cos(pos*Math.PI)/2) + .5;
    },
    reverse: function(pos) {
      return 1-pos;
    },
    flicker: function(pos) {
      var pos = ((-Math.cos(pos*Math.PI)/4) + .75) + Math.random()/4;
      return pos > 1 ? 1 : pos;
    },
    wobble: function(pos) {
      return (-Math.cos(pos*Math.PI*(9*pos))/2) + .5;
    },
    pulse: function(pos, pulses) {
      return (-Math.cos((pos*((pulses||5)-.5)*2)*Math.PI)/2) + .5;
    },
    spring: function(pos) {
      return 1 - (Math.cos(pos * 4.5 * Math.PI) * Math.exp(-pos * 6));
    },
    none: function(pos) {
      return 0;
    },
    full: function(pos) {
      return 1;
    }
  },
  DefaultOptions: {
    duration:   1.0,   // seconds
    fps:        100,   // 100= assume 66fps max.
    sync:       false, // true for combining
    from:       0.0,
    to:         1.0,
    delay:      0.0,
    queue:      'parallel'
  },
  tagifyText: function(element) {
    var tagifyStyle = 'position:relative';
    if (Prototype.Browser.IE) tagifyStyle += ';zoom:1';

    element = $(element);
    $A(element.childNodes).each( function(child) {
      if (child.nodeType==3) {
        child.nodeValue.toArray().each( function(character) {
          element.insertBefore(
            new Element('span', {style: tagifyStyle}).update(
              character == ' ' ? String.fromCharCode(160) : character),
              child);
        });
        Element.remove(child);
      }
    });
  },
  multiple: function(element, effect) {
    var elements;
    if (((typeof element == 'object') ||
        Object.isFunction(element)) &&
       (element.length))
      elements = element;
    else
      elements = $(element).childNodes;

    var options = Object.extend({
      speed: 0.1,
      delay: 0.0
    }, arguments[2] || { });
    var masterDelay = options.delay;

    $A(elements).each( function(element, index) {
      new effect(element, Object.extend(options, { delay: index * options.speed + masterDelay }));
    });
  },
  PAIRS: {
    'slide':  ['SlideDown','SlideUp'],
    'blind':  ['BlindDown','BlindUp'],
    'appear': ['Appear','Fade']
  },
  toggle: function(element, effect, options) {
    element = $(element);
    effect  = (effect || 'appear').toLowerCase();

    return Effect[ Effect.PAIRS[ effect ][ element.visible() ? 1 : 0 ] ](element, Object.extend({
      queue: { position:'end', scope:(element.id || 'global'), limit: 1 }
    }, options || {}));
  }
};

Effect.DefaultOptions.transition = Effect.Transitions.sinoidal;

/* ------------- core effects ------------- */

Effect.ScopedQueue = Class.create(Enumerable, {
  initialize: function() {
    this.effects  = [];
    this.interval = null;
  },
  _each: function(iterator) {
    this.effects._each(iterator);
  },
  add: function(effect) {
    var timestamp = new Date().getTime();

    var position = Object.isString(effect.options.queue) ?
      effect.options.queue : effect.options.queue.position;

    switch(position) {
      case 'front':
        this.effects.findAll(function(e){ return e.state=='idle' }).each( function(e) {
            e.startOn  += effect.finishOn;
            e.finishOn += effect.finishOn;
          });
        break;
      case 'with-last':
        timestamp = this.effects.pluck('startOn').max() || timestamp;
        break;
      case 'end':
        timestamp = this.effects.pluck('finishOn').max() || timestamp;
        break;
    }

    effect.startOn  += timestamp;
    effect.finishOn += timestamp;

    if (!effect.options.queue.limit || (this.effects.length < effect.options.queue.limit))
      this.effects.push(effect);

    if (!this.interval)
      this.interval = setInterval(this.loop.bind(this), 15);
  },
  remove: function(effect) {
    this.effects = this.effects.reject(function(e) { return e==effect });
    if (this.effects.length == 0) {
      clearInterval(this.interval);
      this.interval = null;
    }
  },
  loop: function() {
    var timePos = new Date().getTime();
    for(var i=0, len=this.effects.length;i<len;i++)
      this.effects[i] && this.effects[i].loop(timePos);
  }
});

Effect.Queues = {
  instances: $H(),
  get: function(queueName) {
    if (!Object.isString(queueName)) return queueName;

    return this.instances.get(queueName) ||
      this.instances.set(queueName, new Effect.ScopedQueue());
  }
};
Effect.Queue = Effect.Queues.get('global');

Effect.Base = Class.create({
  position: null,
  start: function(options) {
    if (options && options.transition === false) options.transition = Effect.Transitions.linear;
    this.options      = Object.extend(Object.extend({ },Effect.DefaultOptions), options || { });
    this.currentFrame = 0;
    this.state        = 'idle';
    this.startOn      = this.options.delay*1000;
    this.finishOn     = this.startOn+(this.options.duration*1000);
    this.fromToDelta  = this.options.to-this.options.from;
    this.totalTime    = this.finishOn-this.startOn;
    this.totalFrames  = this.options.fps*this.options.duration;

    this.render = (function() {
      function dispatch(effect, eventName) {
        if (effect.options[eventName + 'Internal'])
          effect.options[eventName + 'Internal'](effect);
        if (effect.options[eventName])
          effect.options[eventName](effect);
      }

      return function(pos) {
        if (this.state === "idle") {
          this.state = "running";
          dispatch(this, 'beforeSetup');
          if (this.setup) this.setup();
          dispatch(this, 'afterSetup');
        }
        if (this.state === "running") {
          pos = (this.options.transition(pos) * this.fromToDelta) + this.options.from;
          this.position = pos;
          dispatch(this, 'beforeUpdate');
          if (this.update) this.update(pos);
          dispatch(this, 'afterUpdate');
        }
      };
    })();

    this.event('beforeStart');
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).add(this);
  },
  loop: function(timePos) {
    if (timePos >= this.startOn) {
      if (timePos >= this.finishOn) {
        this.render(1.0);
        this.cancel();
        this.event('beforeFinish');
        if (this.finish) this.finish();
        this.event('afterFinish');
        return;
      }
      var pos   = (timePos - this.startOn) / this.totalTime,
          frame = (pos * this.totalFrames).round();
      if (frame > this.currentFrame) {
        this.render(pos);
        this.currentFrame = frame;
      }
    }
  },
  cancel: function() {
    if (!this.options.sync)
      Effect.Queues.get(Object.isString(this.options.queue) ?
        'global' : this.options.queue.scope).remove(this);
    this.state = 'finished';
  },
  event: function(eventName) {
    if (this.options[eventName + 'Internal']) this.options[eventName + 'Internal'](this);
    if (this.options[eventName]) this.options[eventName](this);
  },
  inspect: function() {
    var data = $H();
    for(property in this)
      if (!Object.isFunction(this[property])) data.set(property, this[property]);
    return '#<Effect:' + data.inspect() + ',options:' + $H(this.options).inspect() + '>';
  }
});

Effect.Parallel = Class.create(Effect.Base, {
  initialize: function(effects) {
    this.effects = effects || [];
    this.start(arguments[1]);
  },
  update: function(position) {
    this.effects.invoke('render', position);
  },
  finish: function(position) {
    this.effects.each( function(effect) {
      effect.render(1.0);
      effect.cancel();
      effect.event('beforeFinish');
      if (effect.finish) effect.finish(position);
      effect.event('afterFinish');
    });
  }
});

Effect.Tween = Class.create(Effect.Base, {
  initialize: function(object, from, to) {
    object = Object.isString(object) ? $(object) : object;
    var args = $A(arguments), method = args.last(),
      options = args.length == 5 ? args[3] : null;
    this.method = Object.isFunction(method) ? method.bind(object) :
      Object.isFunction(object[method]) ? object[method].bind(object) :
      function(value) { object[method] = value };
    this.start(Object.extend({ from: from, to: to }, options || { }));
  },
  update: function(position) {
    this.method(position);
  }
});

Effect.Event = Class.create(Effect.Base, {
  initialize: function() {
    this.start(Object.extend({ duration: 0 }, arguments[0] || { }));
  },
  update: Prototype.emptyFunction
});

Effect.Opacity = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
      this.element.setStyle({zoom: 1});
    var options = Object.extend({
      from: this.element.getOpacity() || 0.0,
      to:   1.0
    }, arguments[1] || { });
    this.start(options);
  },
  update: function(position) {
    this.element.setOpacity(position);
  }
});

Effect.Move = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'relative'
    }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    this.element.makePositioned();
    this.originalLeft = parseFloat(this.element.getStyle('left') || '0');
    this.originalTop  = parseFloat(this.element.getStyle('top')  || '0');
    if (this.options.mode == 'absolute') {
      this.options.x = this.options.x - this.originalLeft;
      this.options.y = this.options.y - this.originalTop;
    }
  },
  update: function(position) {
    this.element.setStyle({
      left: (this.options.x  * position + this.originalLeft).round() + 'px',
      top:  (this.options.y  * position + this.originalTop).round()  + 'px'
    });
  }
});

Effect.MoveBy = function(element, toTop, toLeft) {
  return new Effect.Move(element,
    Object.extend({ x: toLeft, y: toTop }, arguments[3] || { }));
};

Effect.Scale = Class.create(Effect.Base, {
  initialize: function(element, percent) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      scaleX: true,
      scaleY: true,
      scaleContent: true,
      scaleFromCenter: false,
      scaleMode: 'box',        // 'box' or 'contents' or { } with provided values
      scaleFrom: 100.0,
      scaleTo:   percent
    }, arguments[2] || { });
    this.start(options);
  },
  setup: function() {
    this.restoreAfterFinish = this.options.restoreAfterFinish || false;
    this.elementPositioning = this.element.getStyle('position');

    this.originalStyle = { };
    ['top','left','width','height','fontSize'].each( function(k) {
      this.originalStyle[k] = this.element.style[k];
    }.bind(this));

    this.originalTop  = this.element.offsetTop;
    this.originalLeft = this.element.offsetLeft;

    var fontSize = this.element.getStyle('font-size') || '100%';
    ['em','px','%','pt'].each( function(fontSizeType) {
      if (fontSize.indexOf(fontSizeType)>0) {
        this.fontSize     = parseFloat(fontSize);
        this.fontSizeType = fontSizeType;
      }
    }.bind(this));

    this.factor = (this.options.scaleTo - this.options.scaleFrom)/100;

    this.dims = null;
    if (this.options.scaleMode=='box')
      this.dims = [this.element.offsetHeight, this.element.offsetWidth];
    if (/^content/.test(this.options.scaleMode))
      this.dims = [this.element.scrollHeight, this.element.scrollWidth];
    if (!this.dims)
      this.dims = [this.options.scaleMode.originalHeight,
                   this.options.scaleMode.originalWidth];
  },
  update: function(position) {
    var currentScale = (this.options.scaleFrom/100.0) + (this.factor * position);
    if (this.options.scaleContent && this.fontSize)
      this.element.setStyle({fontSize: this.fontSize * currentScale + this.fontSizeType });
    this.setDimensions(this.dims[0] * currentScale, this.dims[1] * currentScale);
  },
  finish: function(position) {
    if (this.restoreAfterFinish) this.element.setStyle(this.originalStyle);
  },
  setDimensions: function(height, width) {
    var d = { };
    if (this.options.scaleX) d.width = width.round() + 'px';
    if (this.options.scaleY) d.height = height.round() + 'px';
    if (this.options.scaleFromCenter) {
      var topd  = (height - this.dims[0])/2;
      var leftd = (width  - this.dims[1])/2;
      if (this.elementPositioning == 'absolute') {
        if (this.options.scaleY) d.top = this.originalTop-topd + 'px';
        if (this.options.scaleX) d.left = this.originalLeft-leftd + 'px';
      } else {
        if (this.options.scaleY) d.top = -topd + 'px';
        if (this.options.scaleX) d.left = -leftd + 'px';
      }
    }
    this.element.setStyle(d);
  }
});

Effect.Highlight = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({ startcolor: '#ffff99' }, arguments[1] || { });
    this.start(options);
  },
  setup: function() {
    if (this.element.getStyle('display')=='none') { this.cancel(); return; }
    this.oldStyle = { };
    if (!this.options.keepBackgroundImage) {
      this.oldStyle.backgroundImage = this.element.getStyle('background-image');
      this.element.setStyle({backgroundImage: 'none'});
    }
    if (!this.options.endcolor)
      this.options.endcolor = this.element.getStyle('background-color').parseColor('#ffffff');
    if (!this.options.restorecolor)
      this.options.restorecolor = this.element.getStyle('background-color');
    this._base  = $R(0,2).map(function(i){ return parseInt(this.options.startcolor.slice(i*2+1,i*2+3),16) }.bind(this));
    this._delta = $R(0,2).map(function(i){ return parseInt(this.options.endcolor.slice(i*2+1,i*2+3),16)-this._base[i] }.bind(this));
  },
  update: function(position) {
    this.element.setStyle({backgroundColor: $R(0,2).inject('#',function(m,v,i){
      return m+((this._base[i]+(this._delta[i]*position)).round().toColorPart()); }.bind(this)) });
  },
  finish: function() {
    this.element.setStyle(Object.extend(this.oldStyle, {
      backgroundColor: this.options.restorecolor
    }));
  }
});

Effect.ScrollTo = function(element) {
  var options = arguments[1] || { },
  scrollOffsets = document.viewport.getScrollOffsets(),
  elementOffsets = $(element).cumulativeOffset();

  if (options.offset) elementOffsets[1] += options.offset;

  return new Effect.Tween(null,
    scrollOffsets.top,
    elementOffsets[1],
    options,
    function(p){ scrollTo(scrollOffsets.left, p.round()); }
  );
};

/* ------------- combination effects ------------- */

Effect.Fade = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  var options = Object.extend({
    from: element.getOpacity() || 1.0,
    to:   0.0,
    afterFinishInternal: function(effect) {
      if (effect.options.to!=0) return;
      effect.element.hide().setStyle({opacity: oldOpacity});
    }
  }, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Appear = function(element) {
  element = $(element);
  var options = Object.extend({
  from: (element.getStyle('display') == 'none' ? 0.0 : element.getOpacity() || 0.0),
  to:   1.0,
  afterFinishInternal: function(effect) {
    effect.element.forceRerendering();
  },
  beforeSetup: function(effect) {
    effect.element.setOpacity(effect.options.from).show();
  }}, arguments[1] || { });
  return new Effect.Opacity(element,options);
};

Effect.Puff = function(element) {
  element = $(element);
  var oldStyle = {
    opacity: element.getInlineOpacity(),
    position: element.getStyle('position'),
    top:  element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height
  };
  return new Effect.Parallel(
   [ new Effect.Scale(element, 200,
      { sync: true, scaleFromCenter: true, scaleContent: true, restoreAfterFinish: true }),
     new Effect.Opacity(element, { sync: true, to: 0.0 } ) ],
     Object.extend({ duration: 1.0,
      beforeSetupInternal: function(effect) {
        Position.absolutize(effect.effects[0].element);
      },
      afterFinishInternal: function(effect) {
         effect.effects[0].element.hide().setStyle(oldStyle); }
     }, arguments[1] || { })
   );
};

Effect.BlindUp = function(element) {
  element = $(element);
  element.makeClipping();
  return new Effect.Scale(element, 0,
    Object.extend({ scaleContent: false,
      scaleX: false,
      restoreAfterFinish: true,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping();
      }
    }, arguments[1] || { })
  );
};

Effect.BlindDown = function(element) {
  element = $(element);
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: 0,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping();
    }
  }, arguments[1] || { }));
};

Effect.SwitchOff = function(element) {
  element = $(element);
  var oldOpacity = element.getInlineOpacity();
  return new Effect.Appear(element, Object.extend({
    duration: 0.4,
    from: 0,
    transition: Effect.Transitions.flicker,
    afterFinishInternal: function(effect) {
      new Effect.Scale(effect.element, 1, {
        duration: 0.3, scaleFromCenter: true,
        scaleX: false, scaleContent: false, restoreAfterFinish: true,
        beforeSetup: function(effect) {
          effect.element.makePositioned().makeClipping();
        },
        afterFinishInternal: function(effect) {
          effect.element.hide().undoClipping().undoPositioned().setStyle({opacity: oldOpacity});
        }
      });
    }
  }, arguments[1] || { }));
};

Effect.DropOut = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left'),
    opacity: element.getInlineOpacity() };
  return new Effect.Parallel(
    [ new Effect.Move(element, {x: 0, y: 100, sync: true }),
      new Effect.Opacity(element, { sync: true, to: 0.0 }) ],
    Object.extend(
      { duration: 0.5,
        beforeSetup: function(effect) {
          effect.effects[0].element.makePositioned();
        },
        afterFinishInternal: function(effect) {
          effect.effects[0].element.hide().undoPositioned().setStyle(oldStyle);
        }
      }, arguments[1] || { }));
};

Effect.Shake = function(element) {
  element = $(element);
  var options = Object.extend({
    distance: 20,
    duration: 0.5
  }, arguments[1] || {});
  var distance = parseFloat(options.distance);
  var split = parseFloat(options.duration) / 10.0;
  var oldStyle = {
    top: element.getStyle('top'),
    left: element.getStyle('left') };
    return new Effect.Move(element,
      { x:  distance, y: 0, duration: split, afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x:  distance*2, y: 0, duration: split*2,  afterFinishInternal: function(effect) {
    new Effect.Move(effect.element,
      { x: -distance, y: 0, duration: split, afterFinishInternal: function(effect) {
        effect.element.undoPositioned().setStyle(oldStyle);
  }}); }}); }}); }}); }}); }});
};

Effect.SlideDown = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, 100, Object.extend({
    scaleContent: false,
    scaleX: false,
    scaleFrom: window.opera ? 0 : 1,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().setStyle({height: '0px'}).show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom}); }
    }, arguments[1] || { })
  );
};

Effect.SlideUp = function(element) {
  element = $(element).cleanWhitespace();
  var oldInnerBottom = element.down().getStyle('bottom');
  var elementDimensions = element.getDimensions();
  return new Effect.Scale(element, window.opera ? 0 : 1,
   Object.extend({ scaleContent: false,
    scaleX: false,
    scaleMode: 'box',
    scaleFrom: 100,
    scaleMode: {originalHeight: elementDimensions.height, originalWidth: elementDimensions.width},
    restoreAfterFinish: true,
    afterSetup: function(effect) {
      effect.element.makePositioned();
      effect.element.down().makePositioned();
      if (window.opera) effect.element.setStyle({top: ''});
      effect.element.makeClipping().show();
    },
    afterUpdateInternal: function(effect) {
      effect.element.down().setStyle({bottom:
        (effect.dims[0] - effect.element.clientHeight) + 'px' });
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping().undoPositioned();
      effect.element.down().undoPositioned().setStyle({bottom: oldInnerBottom});
    }
   }, arguments[1] || { })
  );
};

Effect.Squish = function(element) {
  return new Effect.Scale(element, window.opera ? 1 : 0, {
    restoreAfterFinish: true,
    beforeSetup: function(effect) {
      effect.element.makeClipping();
    },
    afterFinishInternal: function(effect) {
      effect.element.hide().undoClipping();
    }
  });
};

Effect.Grow = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.full
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var initialMoveX, initialMoveY;
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      initialMoveX = initialMoveY = moveX = moveY = 0;
      break;
    case 'top-right':
      initialMoveX = dims.width;
      initialMoveY = moveY = 0;
      moveX = -dims.width;
      break;
    case 'bottom-left':
      initialMoveX = moveX = 0;
      initialMoveY = dims.height;
      moveY = -dims.height;
      break;
    case 'bottom-right':
      initialMoveX = dims.width;
      initialMoveY = dims.height;
      moveX = -dims.width;
      moveY = -dims.height;
      break;
    case 'center':
      initialMoveX = dims.width / 2;
      initialMoveY = dims.height / 2;
      moveX = -dims.width / 2;
      moveY = -dims.height / 2;
      break;
  }

  return new Effect.Move(element, {
    x: initialMoveX,
    y: initialMoveY,
    duration: 0.01,
    beforeSetup: function(effect) {
      effect.element.hide().makeClipping().makePositioned();
    },
    afterFinishInternal: function(effect) {
      new Effect.Parallel(
        [ new Effect.Opacity(effect.element, { sync: true, to: 1.0, from: 0.0, transition: options.opacityTransition }),
          new Effect.Move(effect.element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition }),
          new Effect.Scale(effect.element, 100, {
            scaleMode: { originalHeight: dims.height, originalWidth: dims.width },
            sync: true, scaleFrom: window.opera ? 1 : 0, transition: options.scaleTransition, restoreAfterFinish: true})
        ], Object.extend({
             beforeSetup: function(effect) {
               effect.effects[0].element.setStyle({height: '0px'}).show();
             },
             afterFinishInternal: function(effect) {
               effect.effects[0].element.undoClipping().undoPositioned().setStyle(oldStyle);
             }
           }, options)
      );
    }
  });
};

Effect.Shrink = function(element) {
  element = $(element);
  var options = Object.extend({
    direction: 'center',
    moveTransition: Effect.Transitions.sinoidal,
    scaleTransition: Effect.Transitions.sinoidal,
    opacityTransition: Effect.Transitions.none
  }, arguments[1] || { });
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    height: element.style.height,
    width: element.style.width,
    opacity: element.getInlineOpacity() };

  var dims = element.getDimensions();
  var moveX, moveY;

  switch (options.direction) {
    case 'top-left':
      moveX = moveY = 0;
      break;
    case 'top-right':
      moveX = dims.width;
      moveY = 0;
      break;
    case 'bottom-left':
      moveX = 0;
      moveY = dims.height;
      break;
    case 'bottom-right':
      moveX = dims.width;
      moveY = dims.height;
      break;
    case 'center':
      moveX = dims.width / 2;
      moveY = dims.height / 2;
      break;
  }

  return new Effect.Parallel(
    [ new Effect.Opacity(element, { sync: true, to: 0.0, from: 1.0, transition: options.opacityTransition }),
      new Effect.Scale(element, window.opera ? 1 : 0, { sync: true, transition: options.scaleTransition, restoreAfterFinish: true}),
      new Effect.Move(element, { x: moveX, y: moveY, sync: true, transition: options.moveTransition })
    ], Object.extend({
         beforeStartInternal: function(effect) {
           effect.effects[0].element.makePositioned().makeClipping();
         },
         afterFinishInternal: function(effect) {
           effect.effects[0].element.hide().undoClipping().undoPositioned().setStyle(oldStyle); }
       }, options)
  );
};

Effect.Pulsate = function(element) {
  element = $(element);
  var options    = arguments[1] || { },
    oldOpacity = element.getInlineOpacity(),
    transition = options.transition || Effect.Transitions.linear,
    reverser   = function(pos){
      return 1 - transition((-Math.cos((pos*(options.pulses||5)*2)*Math.PI)/2) + .5);
    };

  return new Effect.Opacity(element,
    Object.extend(Object.extend({  duration: 2.0, from: 0,
      afterFinishInternal: function(effect) { effect.element.setStyle({opacity: oldOpacity}); }
    }, options), {transition: reverser}));
};

Effect.Fold = function(element) {
  element = $(element);
  var oldStyle = {
    top: element.style.top,
    left: element.style.left,
    width: element.style.width,
    height: element.style.height };
  element.makeClipping();
  return new Effect.Scale(element, 5, Object.extend({
    scaleContent: false,
    scaleX: false,
    afterFinishInternal: function(effect) {
    new Effect.Scale(element, 1, {
      scaleContent: false,
      scaleY: false,
      afterFinishInternal: function(effect) {
        effect.element.hide().undoClipping().setStyle(oldStyle);
      } });
  }}, arguments[1] || { }));
};

Effect.Morph = Class.create(Effect.Base, {
  initialize: function(element) {
    this.element = $(element);
    if (!this.element) throw(Effect._elementDoesNotExistError);
    var options = Object.extend({
      style: { }
    }, arguments[1] || { });

    if (!Object.isString(options.style)) this.style = $H(options.style);
    else {
      if (options.style.include(':'))
        this.style = options.style.parseStyle();
      else {
        this.element.addClassName(options.style);
        this.style = $H(this.element.getStyles());
        this.element.removeClassName(options.style);
        var css = this.element.getStyles();
        this.style = this.style.reject(function(style) {
          return style.value == css[style.key];
        });
        options.afterFinishInternal = function(effect) {
          effect.element.addClassName(effect.options.style);
          effect.transforms.each(function(transform) {
            effect.element.style[transform.style] = '';
          });
        };
      }
    }
    this.start(options);
  },

  setup: function(){
    function parseColor(color){
      if (!color || ['rgba(0, 0, 0, 0)','transparent'].include(color)) color = '#ffffff';
      color = color.parseColor();
      return $R(0,2).map(function(i){
        return parseInt( color.slice(i*2+1,i*2+3), 16 );
      });
    }
    this.transforms = this.style.map(function(pair){
      var property = pair[0], value = pair[1], unit = null;

      if (value.parseColor('#zzzzzz') != '#zzzzzz') {
        value = value.parseColor();
        unit  = 'color';
      } else if (property == 'opacity') {
        value = parseFloat(value);
        if (Prototype.Browser.IE && (!this.element.currentStyle.hasLayout))
          this.element.setStyle({zoom: 1});
      } else if (Element.CSS_LENGTH.test(value)) {
          var components = value.match(/^([\+\-]?[0-9\.]+)(.*)$/);
          value = parseFloat(components[1]);
          unit = (components.length == 3) ? components[2] : null;
      }

      var originalValue = this.element.getStyle(property);
      return {
        style: property.camelize(),
        originalValue: unit=='color' ? parseColor(originalValue) : parseFloat(originalValue || 0),
        targetValue: unit=='color' ? parseColor(value) : value,
        unit: unit
      };
    }.bind(this)).reject(function(transform){
      return (
        (transform.originalValue == transform.targetValue) ||
        (
          transform.unit != 'color' &&
          (isNaN(transform.originalValue) || isNaN(transform.targetValue))
        )
      );
    });
  },
  update: function(position) {
    var style = { }, transform, i = this.transforms.length;
    while(i--)
      style[(transform = this.transforms[i]).style] =
        transform.unit=='color' ? '#'+
          (Math.round(transform.originalValue[0]+
            (transform.targetValue[0]-transform.originalValue[0])*position)).toColorPart() +
          (Math.round(transform.originalValue[1]+
            (transform.targetValue[1]-transform.originalValue[1])*position)).toColorPart() +
          (Math.round(transform.originalValue[2]+
            (transform.targetValue[2]-transform.originalValue[2])*position)).toColorPart() :
        (transform.originalValue +
          (transform.targetValue - transform.originalValue) * position).toFixed(3) +
            (transform.unit === null ? '' : transform.unit);
    this.element.setStyle(style, true);
  }
});

Effect.Transform = Class.create({
  initialize: function(tracks){
    this.tracks  = [];
    this.options = arguments[1] || { };
    this.addTracks(tracks);
  },
  addTracks: function(tracks){
    tracks.each(function(track){
      track = $H(track);
      var data = track.values().first();
      this.tracks.push($H({
        ids:     track.keys().first(),
        effect:  Effect.Morph,
        options: { style: data }
      }));
    }.bind(this));
    return this;
  },
  play: function(){
    return new Effect.Parallel(
      this.tracks.map(function(track){
        var ids = track.get('ids'), effect = track.get('effect'), options = track.get('options');
        var elements = [$(ids) || $$(ids)].flatten();
        return elements.map(function(e){ return new effect(e, Object.extend({ sync:true }, options)) });
      }).flatten(),
      this.options
    );
  }
});

Element.CSS_PROPERTIES = $w(
  'backgroundColor backgroundPosition borderBottomColor borderBottomStyle ' +
  'borderBottomWidth borderLeftColor borderLeftStyle borderLeftWidth ' +
  'borderRightColor borderRightStyle borderRightWidth borderSpacing ' +
  'borderTopColor borderTopStyle borderTopWidth bottom clip color ' +
  'fontSize fontWeight height left letterSpacing lineHeight ' +
  'marginBottom marginLeft marginRight marginTop markerOffset maxHeight '+
  'maxWidth minHeight minWidth opacity outlineColor outlineOffset ' +
  'outlineWidth paddingBottom paddingLeft paddingRight paddingTop ' +
  'right textIndent top width wordSpacing zIndex');

Element.CSS_LENGTH = /^(([\+\-]?[0-9\.]+)(em|ex|px|in|cm|mm|pt|pc|\%))|0$/;

String.__parseStyleElement = document.createElement('div');
String.prototype.parseStyle = function(){
  var style, styleRules = $H();
  if (Prototype.Browser.WebKit)
    style = new Element('div',{style:this}).style;
  else {
    String.__parseStyleElement.innerHTML = '<div style="' + this + '"></div>';
    style = String.__parseStyleElement.childNodes[0].style;
  }

  Element.CSS_PROPERTIES.each(function(property){
    if (style[property]) styleRules.set(property, style[property]);
  });

  if (Prototype.Browser.IE && this.include('opacity'))
    styleRules.set('opacity', this.match(/opacity:\s*((?:0|1)?(?:\.\d*)?)/)[1]);

  return styleRules;
};

if (document.defaultView && document.defaultView.getComputedStyle) {
  Element.getStyles = function(element) {
    var css = document.defaultView.getComputedStyle($(element), null);
    return Element.CSS_PROPERTIES.inject({ }, function(styles, property) {
      styles[property] = css[property];
      return styles;
    });
  };
} else {
  Element.getStyles = function(element) {
    element = $(element);
    var css = element.currentStyle, styles;
    styles = Element.CSS_PROPERTIES.inject({ }, function(results, property) {
      results[property] = css[property];
      return results;
    });
    if (!styles.opacity) styles.opacity = element.getOpacity();
    return styles;
  };
}

Effect.Methods = {
  morph: function(element, style) {
    element = $(element);
    new Effect.Morph(element, Object.extend({ style: style }, arguments[2] || { }));
    return element;
  },
  visualEffect: function(element, effect, options) {
    element = $(element);
    var s = effect.dasherize().camelize(), klass = s.charAt(0).toUpperCase() + s.substring(1);
    new Effect[klass](element, options);
    return element;
  },
  highlight: function(element, options) {
    element = $(element);
    new Effect.Highlight(element, options);
    return element;
  }
};

$w('fade appear grow shrink fold blindUp blindDown slideUp slideDown '+
  'pulsate shake puff squish switchOff dropOut').each(
  function(effect) {
    Effect.Methods[effect] = function(element, options){
      element = $(element);
      Effect[effect.charAt(0).toUpperCase() + effect.substring(1)](element, options);
      return element;
    };
  }
);

$w('getInlineOpacity forceRerendering setContentZoom collectTextNodes collectTextNodesIgnoreClass getStyles').each(
  function(f) { Effect.Methods[f] = Element[f]; }
);

Element.addMethods(Effect.Methods);


if(Object.isUndefined(Effect))
  throw("dragdrop.js requires including script.aculo.us' effects.js library");

var Droppables = {
  drops: [],

  remove: function(element) {
    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
  },

  add: function(element) {
    element = $(element);
    var options = Object.extend({
      greedy:     true,
      hoverclass: null,
      tree:       false
    }, arguments[1] || { });

    if(options.containment) {
      options._containers = [];
      var containment = options.containment;
      if(Object.isArray(containment)) {
        containment.each( function(c) { options._containers.push($(c)) });
      } else {
        options._containers.push($(containment));
      }
    }

    if(options.accept) options.accept = [options.accept].flatten();

    Element.makePositioned(element); // fix IE
    options.element = element;

    this.drops.push(options);
  },

  findDeepestChild: function(drops) {
    deepest = drops[0];

    for (i = 1; i < drops.length; ++i)
      if (Element.isParent(drops[i].element, deepest.element))
        deepest = drops[i];

    return deepest;
  },

  isContained: function(element, drop) {
    var containmentNode;
    if(drop.tree) {
      containmentNode = element.treeNode;
    } else {
      containmentNode = element.parentNode;
    }
    return drop._containers.detect(function(c) { return containmentNode == c });
  },

  isAffected: function(point, element, drop) {
    return (
      (drop.element!=element) &&
      ((!drop._containers) ||
        this.isContained(element, drop)) &&
      ((!drop.accept) ||
        (Element.classNames(element).detect(
          function(v) { return drop.accept.include(v) } ) )) &&
      Position.within(drop.element, point[0], point[1]) );
  },

  deactivate: function(drop) {
    if(drop.hoverclass)
      Element.removeClassName(drop.element, drop.hoverclass);
    this.last_active = null;
  },

  activate: function(drop) {
    if(drop.hoverclass)
      Element.addClassName(drop.element, drop.hoverclass);
    this.last_active = drop;
  },

  show: function(point, element) {
    if(!this.drops.length) return;
    var drop, affected = [];

    this.drops.each( function(drop) {
      if(Droppables.isAffected(point, element, drop))
        affected.push(drop);
    });

    if(affected.length>0)
      drop = Droppables.findDeepestChild(affected);

    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
    if (drop) {
      Position.within(drop.element, point[0], point[1]);
      if(drop.onHover)
        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));

      if (drop != this.last_active) Droppables.activate(drop);
    }
  },

  fire: function(event, element) {
    if(!this.last_active) return;
    Position.prepare();

    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
      if (this.last_active.onDrop) {
        this.last_active.onDrop(element, this.last_active.element, event);
        return true;
      }
  },

  reset: function() {
    if(this.last_active)
      this.deactivate(this.last_active);
  }
};

var Draggables = {
  drags: [],
  observers: [],

  register: function(draggable) {
    if(this.drags.length == 0) {
      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
      this.eventKeypress  = this.keyPress.bindAsEventListener(this);

      Event.observe(document, "mouseup", this.eventMouseUp);
      Event.observe(document, "mousemove", this.eventMouseMove);
      Event.observe(document, "keypress", this.eventKeypress);
    }
    this.drags.push(draggable);
  },

  unregister: function(draggable) {
    this.drags = this.drags.reject(function(d) { return d==draggable });
    if(this.drags.length == 0) {
      Event.stopObserving(document, "mouseup", this.eventMouseUp);
      Event.stopObserving(document, "mousemove", this.eventMouseMove);
      Event.stopObserving(document, "keypress", this.eventKeypress);
    }
  },

  activate: function(draggable) {
    if(draggable.options.delay) {
      this._timeout = setTimeout(function() {
        Draggables._timeout = null;
        window.focus();
        Draggables.activeDraggable = draggable;
      }.bind(this), draggable.options.delay);
    } else {
      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
      this.activeDraggable = draggable;
    }
  },

  deactivate: function() {
    this.activeDraggable = null;
  },

  updateDrag: function(event) {
    if(!this.activeDraggable) return;
    var pointer = [Event.pointerX(event), Event.pointerY(event)];
    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
    this._lastPointer = pointer;

    this.activeDraggable.updateDrag(event, pointer);
  },

  endDrag: function(event) {
    if(this._timeout) {
      clearTimeout(this._timeout);
      this._timeout = null;
    }
    if(!this.activeDraggable) return;
    this._lastPointer = null;
    this.activeDraggable.endDrag(event);
    this.activeDraggable = null;
  },

  keyPress: function(event) {
    if(this.activeDraggable)
      this.activeDraggable.keyPress(event);
  },

  addObserver: function(observer) {
    this.observers.push(observer);
    this._cacheObserverCallbacks();
  },

  removeObserver: function(element) {  // element instead of observer fixes mem leaks
    this.observers = this.observers.reject( function(o) { return o.element==element });
    this._cacheObserverCallbacks();
  },

  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
    if(this[eventName+'Count'] > 0)
      this.observers.each( function(o) {
        if(o[eventName]) o[eventName](eventName, draggable, event);
      });
    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
  },

  _cacheObserverCallbacks: function() {
    ['onStart','onEnd','onDrag'].each( function(eventName) {
      Draggables[eventName+'Count'] = Draggables.observers.select(
        function(o) { return o[eventName]; }
      ).length;
    });
  }
};

/*--------------------------------------------------------------------------*/

var Draggable = Class.create({
  initialize: function(element) {
    var defaults = {
      handle: false,
      reverteffect: function(element, top_offset, left_offset) {
        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
          queue: {scope:'_draggable', position:'end'}
        });
      },
      endeffect: function(element) {
        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
          queue: {scope:'_draggable', position:'end'},
          afterFinish: function(){
            Draggable._dragging[element] = false
          }
        });
      },
      zindex: 1000,
      revert: false,
      quiet: false,
      scroll: false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
      delay: 0
    };

    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
      Object.extend(defaults, {
        starteffect: function(element) {
          element._opacity = Element.getOpacity(element);
          Draggable._dragging[element] = true;
          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
        }
      });

    var options = Object.extend(defaults, arguments[1] || { });

    this.element = $(element);

    if(options.handle && Object.isString(options.handle))
      this.handle = this.element.down('.'+options.handle, 0);

    if(!this.handle) this.handle = $(options.handle);
    if(!this.handle) this.handle = this.element;

    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
      options.scroll = $(options.scroll);
      this._isScrollChild = Element.childOf(this.element, options.scroll);
    }

    Element.makePositioned(this.element); // fix IE

    this.options  = options;
    this.dragging = false;

    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
    Event.observe(this.handle, "mousedown", this.eventMouseDown);

    Draggables.register(this);
  },

  destroy: function() {
    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
    Draggables.unregister(this);
  },

  currentDelta: function() {
    return([
      parseInt(Element.getStyle(this.element,'left') || '0'),
      parseInt(Element.getStyle(this.element,'top') || '0')]);
  },

  initDrag: function(event) {
    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
      Draggable._dragging[this.element]) return;
    if(Event.isLeftClick(event)) {
      var src = Event.element(event);
      if((tag_name = src.tagName.toUpperCase()) && (
        tag_name=='INPUT' ||
        tag_name=='SELECT' ||
        tag_name=='OPTION' ||
        tag_name=='BUTTON' ||
        tag_name=='TEXTAREA')) return;

      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      var pos     = this.element.cumulativeOffset();
      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });

      Draggables.activate(this);
      Event.stop(event);
    }
  },

  startDrag: function(event) {
    this.dragging = true;
    if(!this.delta)
      this.delta = this.currentDelta();

    if(this.options.zindex) {
      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
      this.element.style.zIndex = this.options.zindex;
    }

    if(this.options.ghosting) {
      this._clone = this.element.cloneNode(true);
      this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
      if (!this._originallyAbsolute)
        Position.absolutize(this.element);
      this.element.parentNode.insertBefore(this._clone, this.element);
    }

    if(this.options.scroll) {
      if (this.options.scroll == window) {
        var where = this._getWindowScroll(this.options.scroll);
        this.originalScrollLeft = where.left;
        this.originalScrollTop = where.top;
      } else {
        this.originalScrollLeft = this.options.scroll.scrollLeft;
        this.originalScrollTop = this.options.scroll.scrollTop;
      }
    }

    Draggables.notify('onStart', this, event);

    if(this.options.starteffect) this.options.starteffect(this.element);
  },

  updateDrag: function(event, pointer) {
    if(!this.dragging) this.startDrag(event);

    if(!this.options.quiet){
      Position.prepare();
      Droppables.show(pointer, this.element);
    }

    Draggables.notify('onDrag', this, event);

    this.draw(pointer);
    if(this.options.change) this.options.change(this);

    if(this.options.scroll) {
      this.stopScrolling();

      var p;
      if (this.options.scroll == window) {
        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
      } else {
        p = Position.page(this.options.scroll);
        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
        p[1] += this.options.scroll.scrollTop + Position.deltaY;
        p.push(p[0]+this.options.scroll.offsetWidth);
        p.push(p[1]+this.options.scroll.offsetHeight);
      }
      var speed = [0,0];
      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
      this.startScrolling(speed);
    }

    if(Prototype.Browser.WebKit) window.scrollBy(0,0);

    Event.stop(event);
  },

  finishDrag: function(event, success) {
    this.dragging = false;

    if(this.options.quiet){
      Position.prepare();
      var pointer = [Event.pointerX(event), Event.pointerY(event)];
      Droppables.show(pointer, this.element);
    }

    if(this.options.ghosting) {
      if (!this._originallyAbsolute)
        Position.relativize(this.element);
      delete this._originallyAbsolute;
      Element.remove(this._clone);
      this._clone = null;
    }

    var dropped = false;
    if(success) {
      dropped = Droppables.fire(event, this.element);
      if (!dropped) dropped = false;
    }
    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
    Draggables.notify('onEnd', this, event);

    var revert = this.options.revert;
    if(revert && Object.isFunction(revert)) revert = revert(this.element);

    var d = this.currentDelta();
    if(revert && this.options.reverteffect) {
      if (dropped == 0 || revert != 'failure')
        this.options.reverteffect(this.element,
          d[1]-this.delta[1], d[0]-this.delta[0]);
    } else {
      this.delta = d;
    }

    if(this.options.zindex)
      this.element.style.zIndex = this.originalZ;

    if(this.options.endeffect)
      this.options.endeffect(this.element);

    Draggables.deactivate(this);
    Droppables.reset();
  },

  keyPress: function(event) {
    if(event.keyCode!=Event.KEY_ESC) return;
    this.finishDrag(event, false);
    Event.stop(event);
  },

  endDrag: function(event) {
    if(!this.dragging) return;
    this.stopScrolling();
    this.finishDrag(event, true);
    Event.stop(event);
  },

  draw: function(point) {
    var pos = this.element.cumulativeOffset();
    if(this.options.ghosting) {
      var r   = Position.realOffset(this.element);
      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
    }

    var d = this.currentDelta();
    pos[0] -= d[0]; pos[1] -= d[1];

    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
    }

    var p = [0,1].map(function(i){
      return (point[i]-pos[i]-this.offset[i])
    }.bind(this));

    if(this.options.snap) {
      if(Object.isFunction(this.options.snap)) {
        p = this.options.snap(p[0],p[1],this);
      } else {
      if(Object.isArray(this.options.snap)) {
        p = p.map( function(v, i) {
          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
      } else {
        p = p.map( function(v) {
          return (v/this.options.snap).round()*this.options.snap }.bind(this));
      }
    }}

    var style = this.element.style;
    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
      style.left = p[0] + "px";
    if((!this.options.constraint) || (this.options.constraint=='vertical'))
      style.top  = p[1] + "px";

    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
  },

  stopScrolling: function() {
    if(this.scrollInterval) {
      clearInterval(this.scrollInterval);
      this.scrollInterval = null;
      Draggables._lastScrollPointer = null;
    }
  },

  startScrolling: function(speed) {
    if(!(speed[0] || speed[1])) return;
    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
    this.lastScrolled = new Date();
    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
  },

  scroll: function() {
    var current = new Date();
    var delta = current - this.lastScrolled;
    this.lastScrolled = current;
    if(this.options.scroll == window) {
      with (this._getWindowScroll(this.options.scroll)) {
        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
          var d = delta / 1000;
          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
        }
      }
    } else {
      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
    }

    Position.prepare();
    Droppables.show(Draggables._lastPointer, this.element);
    Draggables.notify('onDrag', this);
    if (this._isScrollChild) {
      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
      if (Draggables._lastScrollPointer[0] < 0)
        Draggables._lastScrollPointer[0] = 0;
      if (Draggables._lastScrollPointer[1] < 0)
        Draggables._lastScrollPointer[1] = 0;
      this.draw(Draggables._lastScrollPointer);
    }

    if(this.options.change) this.options.change(this);
  },

  _getWindowScroll: function(w) {
    var T, L, W, H;
    with (w.document) {
      if (w.document.documentElement && documentElement.scrollTop) {
        T = documentElement.scrollTop;
        L = documentElement.scrollLeft;
      } else if (w.document.body) {
        T = body.scrollTop;
        L = body.scrollLeft;
      }
      if (w.innerWidth) {
        W = w.innerWidth;
        H = w.innerHeight;
      } else if (w.document.documentElement && documentElement.clientWidth) {
        W = documentElement.clientWidth;
        H = documentElement.clientHeight;
      } else {
        W = body.offsetWidth;
        H = body.offsetHeight;
      }
    }
    return { top: T, left: L, width: W, height: H };
  }
});

Draggable._dragging = { };

/*--------------------------------------------------------------------------*/

var SortableObserver = Class.create({
  initialize: function(element, observer) {
    this.element   = $(element);
    this.observer  = observer;
    this.lastValue = Sortable.serialize(this.element);
  },

  onStart: function() {
    this.lastValue = Sortable.serialize(this.element);
  },

  onEnd: function() {
    Sortable.unmark();
    if(this.lastValue != Sortable.serialize(this.element))
      this.observer(this.element)
  }
});

var Sortable = {
  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,

  sortables: { },

  _findRootElement: function(element) {
    while (element.tagName.toUpperCase() != "BODY") {
      if(element.id && Sortable.sortables[element.id]) return element;
      element = element.parentNode;
    }
  },

  options: function(element) {
    element = Sortable._findRootElement($(element));
    if(!element) return;
    return Sortable.sortables[element.id];
  },

  destroy: function(element){
    element = $(element);
    var s = Sortable.sortables[element.id];

    if(s) {
      Draggables.removeObserver(s.element);
      s.droppables.each(function(d){ Droppables.remove(d) });
      s.draggables.invoke('destroy');

      delete Sortable.sortables[s.element.id];
    }
  },

  create: function(element) {
    element = $(element);
    var options = Object.extend({
      element:     element,
      tag:         'li',       // assumes li children, override with tag: 'tagname'
      dropOnEmpty: false,
      tree:        false,
      treeTag:     'ul',
      overlap:     'vertical', // one of 'vertical', 'horizontal'
      constraint:  'vertical', // one of 'vertical', 'horizontal', false
      containment: element,    // also takes array of elements (or id's); or false
      handle:      false,      // or a CSS class
      only:        false,
      delay:       0,
      hoverclass:  null,
      ghosting:    false,
      quiet:       false,
      scroll:      false,
      scrollSensitivity: 20,
      scrollSpeed: 15,
      format:      this.SERIALIZE_RULE,

      elements:    false,
      handles:     false,

      onChange:    Prototype.emptyFunction,
      onUpdate:    Prototype.emptyFunction
    }, arguments[1] || { });

    this.destroy(element);

    var options_for_draggable = {
      revert:      true,
      quiet:       options.quiet,
      scroll:      options.scroll,
      scrollSpeed: options.scrollSpeed,
      scrollSensitivity: options.scrollSensitivity,
      delay:       options.delay,
      ghosting:    options.ghosting,
      constraint:  options.constraint,
      handle:      options.handle };

    if(options.starteffect)
      options_for_draggable.starteffect = options.starteffect;

    if(options.reverteffect)
      options_for_draggable.reverteffect = options.reverteffect;
    else
      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
        element.style.top  = 0;
        element.style.left = 0;
      };

    if(options.endeffect)
      options_for_draggable.endeffect = options.endeffect;

    if(options.zindex)
      options_for_draggable.zindex = options.zindex;

    var options_for_droppable = {
      overlap:     options.overlap,
      containment: options.containment,
      tree:        options.tree,
      hoverclass:  options.hoverclass,
      onHover:     Sortable.onHover
    };

    var options_for_tree = {
      onHover:      Sortable.onEmptyHover,
      overlap:      options.overlap,
      containment:  options.containment,
      hoverclass:   options.hoverclass
    };

    Element.cleanWhitespace(element);

    options.draggables = [];
    options.droppables = [];

    if(options.dropOnEmpty || options.tree) {
      Droppables.add(element, options_for_tree);
      options.droppables.push(element);
    }

    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
      var handle = options.handles ? $(options.handles[i]) :
        (options.handle ? $(e).select('.' + options.handle)[0] : e);
      options.draggables.push(
        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
      Droppables.add(e, options_for_droppable);
      if(options.tree) e.treeNode = element;
      options.droppables.push(e);
    });

    if(options.tree) {
      (Sortable.findTreeElements(element, options) || []).each( function(e) {
        Droppables.add(e, options_for_tree);
        e.treeNode = element;
        options.droppables.push(e);
      });
    }

    this.sortables[element.identify()] = options;

    Draggables.addObserver(new SortableObserver(element, options.onUpdate));

  },

  findElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.tag);
  },

  findTreeElements: function(element, options) {
    return Element.findChildren(
      element, options.only, options.tree ? true : false, options.treeTag);
  },

  onHover: function(element, dropon, overlap) {
    if(Element.isParent(dropon, element)) return;

    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
      return;
    } else if(overlap>0.5) {
      Sortable.mark(dropon, 'before');
      if(dropon.previousSibling != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, dropon);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    } else {
      Sortable.mark(dropon, 'after');
      var nextElement = dropon.nextSibling || null;
      if(nextElement != element) {
        var oldParentNode = element.parentNode;
        element.style.visibility = "hidden"; // fix gecko rendering
        dropon.parentNode.insertBefore(element, nextElement);
        if(dropon.parentNode!=oldParentNode)
          Sortable.options(oldParentNode).onChange(element);
        Sortable.options(dropon.parentNode).onChange(element);
      }
    }
  },

  onEmptyHover: function(element, dropon, overlap) {
    var oldParentNode = element.parentNode;
    var droponOptions = Sortable.options(dropon);

    if(!Element.isParent(dropon, element)) {
      var index;

      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
      var child = null;

      if(children) {
        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);

        for (index = 0; index < children.length; index += 1) {
          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
            offset -= Element.offsetSize (children[index], droponOptions.overlap);
          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
            child = index + 1 < children.length ? children[index + 1] : null;
            break;
          } else {
            child = children[index];
            break;
          }
        }
      }

      dropon.insertBefore(element, child);

      Sortable.options(oldParentNode).onChange(element);
      droponOptions.onChange(element);
    }
  },

  unmark: function() {
    if(Sortable._marker) Sortable._marker.hide();
  },

  mark: function(dropon, position) {
    var sortable = Sortable.options(dropon.parentNode);
    if(sortable && !sortable.ghosting) return;

    if(!Sortable._marker) {
      Sortable._marker =
        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
          hide().addClassName('dropmarker').setStyle({position:'absolute'});
      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
    }
    var offsets = dropon.cumulativeOffset();
    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});

    if(position=='after')
      if(sortable.overlap == 'horizontal')
        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
      else
        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});

    Sortable._marker.show();
  },

  _tree: function(element, options, parent) {
    var children = Sortable.findElements(element, options) || [];

    for (var i = 0; i < children.length; ++i) {
      var match = children[i].id.match(options.format);

      if (!match) continue;

      var child = {
        id: encodeURIComponent(match ? match[1] : null),
        element: element,
        parent: parent,
        children: [],
        position: parent.children.length,
        container: $(children[i]).down(options.treeTag)
      };

      /* Get the element containing the children and recurse over it */
      if (child.container)
        this._tree(child.container, options, child);

      parent.children.push (child);
    }

    return parent;
  },

  tree: function(element) {
    element = $(element);
    var sortableOptions = this.options(element);
    var options = Object.extend({
      tag: sortableOptions.tag,
      treeTag: sortableOptions.treeTag,
      only: sortableOptions.only,
      name: element.id,
      format: sortableOptions.format
    }, arguments[1] || { });

    var root = {
      id: null,
      parent: null,
      children: [],
      container: element,
      position: 0
    };

    return Sortable._tree(element, options, root);
  },

  /* Construct a [i] index for a particular node */
  _constructIndex: function(node) {
    var index = '';
    do {
      if (node.id) index = '[' + node.position + ']' + index;
    } while ((node = node.parent) != null);
    return index;
  },

  sequence: function(element) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[1] || { });

    return $(this.findElements(element, options) || []).map( function(item) {
      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
    });
  },

  setSequence: function(element, new_sequence) {
    element = $(element);
    var options = Object.extend(this.options(element), arguments[2] || { });

    var nodeMap = { };
    this.findElements(element, options).each( function(n) {
        if (n.id.match(options.format))
            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
        n.parentNode.removeChild(n);
    });

    new_sequence.each(function(ident) {
      var n = nodeMap[ident];
      if (n) {
        n[1].appendChild(n[0]);
        delete nodeMap[ident];
      }
    });
  },

  serialize: function(element) {
    element = $(element);
    var options = Object.extend(Sortable.options(element), arguments[1] || { });
    var name = encodeURIComponent(
      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);

    if (options.tree) {
      return Sortable.tree(element, arguments[1]).children.map( function (item) {
        return [name + Sortable._constructIndex(item) + "[id]=" +
                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
      }).flatten().join('&');
    } else {
      return Sortable.sequence(element, arguments[1]).map( function(item) {
        return name + "[]=" + encodeURIComponent(item);
      }).join('&');
    }
  }
};

Element.isParent = function(child, element) {
  if (!child.parentNode || child == element) return false;
  if (child.parentNode == element) return true;
  return Element.isParent(child.parentNode, element);
};

Element.findChildren = function(element, only, recursive, tagName) {
  if(!element.hasChildNodes()) return null;
  tagName = tagName.toUpperCase();
  if(only) only = [only].flatten();
  var elements = [];
  $A(element.childNodes).each( function(e) {
    if(e.tagName && e.tagName.toUpperCase()==tagName &&
      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
        elements.push(e);
    if(recursive) {
      var grandchildren = Element.findChildren(e, only, recursive, tagName);
      if(grandchildren) elements.push(grandchildren);
    }
  });

  return (elements.length>0 ? elements.flatten() : []);
};

Element.offsetSize = function (element, type) {
  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
};




var Resizables = {
	instances: [],
	observers: [],

	register: function(resizable) {
		if(this.instances.length == 0) {
			this.eventMouseUp   = this.endResize.bindAsEventListener(this);
			this.eventMouseMove = this.updateResize.bindAsEventListener(this);

			Event.observe(document, "mouseup", this.eventMouseUp);
			Event.observe(document, "mousemove", this.eventMouseMove);
		}
		this.instances.push(resizable);
	},

	unregister: function(resizable) {
		this.instances = this.instances.reject(function(d) { return d==resizable });
		if(this.instances.length == 0) {
			Event.stopObserving(document, "mouseup", this.eventMouseUp);
			Event.stopObserving(document, "mousemove", this.eventMouseMove);
		}
	},

	activate: function(resizable) {
		if(resizable.options.delay) {
			this._timeout = setTimeout(function() {
				Resizables._timeout = null;
				Resizables.activeResizable = resizable;
			}.bind(this), resizable.options.delay);
		} else {
			this.activeResizable = resizable;
		}
	},

	deactivate: function() {
		this.activeResizable = null;
	},

	updateResize: function(event) {
		if(!this.activeResizable) return;
		var pointer = [Event.pointerX(event), Event.pointerY(event)];
		if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
		this._lastPointer = pointer;

		this.activeResizable.updateResize(event, pointer);
	},

	endResize: function(event) {
		if(this._timeout) {
		  clearTimeout(this._timeout);
		  this._timeout = null;
		}
		if(!this.activeResizable) return;
		this._lastPointer = null;
		this.activeResizable.endResize(event);
		this.activeResizable = null;
	},

	addObserver: function(observer) {
		this.observers.push(observer);
		this._cacheObserverCallbacks();
	},

	removeObserver: function(element) {  // element instead of observer fixes mem leaks
		this.observers = this.observers.reject( function(o) { return o.element==element });
		this._cacheObserverCallbacks();
	},

	notify: function(eventName, resizable, event) {  // 'onStart', 'onEnd', 'onResize'
		if(this[eventName+'Count'] > 0)
			this.observers.each( function(o) {
				if(o[eventName]) o[eventName](eventName, resizable, event);
			});
		if(resizable.options[eventName]) resizable.options[eventName](resizable, event);
	},

	_cacheObserverCallbacks: function() {
		['onStart','onEnd','onResize'].each( function(eventName) {
			Resizables[eventName+'Count'] = Resizables.observers.select(
				function(o) { return o[eventName]; }
			).length;
		});
	}
}

var Resizable = Class.create();
Resizable._resizing = {};

Resizable.prototype = {
	initialize: function(element){
		var defaults = {
			handle: false,
			snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
			delay: 0,
			minHeight: false,
			minwidth: false,
			maxHeight: false,
			maxWidth: false
		}

		this.element = $(element);

		var options = Object.extend(defaults, arguments[1] || {});
		if(options.handle && typeof options.handle == 'string')
			this.handle = $(options.handle);
		else if(options.handle)
			this.handle = options.handle;

		if(!this.handle) this.handle = this.element;

		this.options  = options;
		this.dragging = false;

		this.eventMouseDown = this.initResize.bindAsEventListener(this);
		Event.observe(this.handle, "mousedown", this.eventMouseDown);

		Resizables.register(this);
	},

	destroy: function() {
		Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
	},

	currentDelta: function() {
		return([
			parseInt(Element.getStyle(this.element,'width') || '0'),
			parseInt(Element.getStyle(this.element,'height') || '0')]);
	},

	initResize: function(event) {
		if(typeof Resizable._resizing[this.element] != 'undefined' &&
			Resizable._resizing[this.element]) return;
		if(Event.isLeftClick(event)) {
			var src = Event.element(event);
			if((tag_name = src.tagName.toUpperCase()) && (
				tag_name=='INPUT' || tag_name=='SELECT' || tag_name=='OPTION' ||
				tag_name=='BUTTON' || tag_name=='TEXTAREA')) return;

			this.pointer = [Event.pointerX(event), Event.pointerY(event)];
			this.size = [parseInt(this.element.getStyle('width')) || 0, parseInt(this.element.getStyle('height')) || 0];

			Resizables.activate(this);
			Event.stop(event);
		}
	},

	startResize: function(event) {
		this.resizing = true;
		if(this.options.zindex) {
			this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
			this.element.style.zIndex = this.options.zindex;
		}
		Resizables.notify('onStart', this, event);
		Resizable._resizing[this.element] = true;
	},

	updateResize: function(event, pointer) {
		if(!this.resizing) this.startResize(event);

		Resizables.notify('onResize', this, event);

		this.draw(pointer);
		if(this.options.change) this.options.change(this);

		if(Prototype.Browser.WebKit) window.scrollBy(0,0);
		Event.stop(event);
	},

	finishResize: function(event, success) {
		this.resizing = false;
		Resizables.notify('onEnd', this, event);
		if(this.options.zindex) this.element.style.zIndex = this.originalZ;
		Resizable._resizing[this.element] = false;
		Resizables.deactivate(this);
	},

	endResize: function(event) {
		if(!this.resizing) return;
		this.finishResize(event, true);
		Event.stop(event);
	},

	draw: function(point) {
		var p = [0,1].map(function(i){
			return (this.size[i] + point[i] - this.pointer[i]);
		}.bind(this));

		if(this.options.snap) {
			if(typeof this.options.snap == 'function') {
				p = this.options.snap(p[0],p[1],this);
			} else {
				if(this.options.snap instanceof Array) {
				p = p.map( function(v, i) {
				return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
			} else {
				p = p.map( function(v) {
				return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
			}
		}}

		var minWidth = (typeof(this.options.minWidth) == 'function') ? this.options.minWidth(this.element) : this.options.minWidth;
		var maxWidth = (typeof(this.options.maxWidth) == 'function') ? this.options.maxWidth(this.element) : this.options.maxWidth;
		var minHeight = (typeof(this.options.minHeight) == 'function') ? this.options.minHeight(this.element) : this.options.minHeight;
		var maxHeight = (typeof(this.options.maxHeight) == 'function') ? this.options.maxHeight(this.element) : this.options.maxHeight;

		if (minWidth && p[0] <= minWidth) p[0] = minWidth;
		if (maxWidth && p[0] >= maxWidth) p[0] = maxWidth;
		if (minHeight && p[1] <= minHeight) p[1] = minHeight;
		if (maxHeight && p[1] >= maxHeight) p[1] = maxHeight;

		var style = this.element.style;
		if((!this.options.constraint) || (this.options.constraint=='horizontal')){
			style.width = p[0] + "px";
		}
		if((!this.options.constraint) || (this.options.constraint=='vertical')){
			style.height = p[1] + "px";
		}

		if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
	}
};
/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/core
 * @require prototype.js
 */

if(typeof(Control) == 'undefined')
    Control = {};

var $proc = function(proc){
    return typeof(proc) == 'function' ? proc : function(){return proc};
};

var $value = function(value){
    return typeof(value) == 'function' ? value() : value;
};

Object.Event = {
    extend: function(object){
        object._objectEventSetup = function(event_name){
            this._observers = this._observers || {};
            this._observers[event_name] = this._observers[event_name] || [];
        };
        object.observe = function(event_name,observer){
            if(typeof(event_name) == 'string' && typeof(observer) != 'undefined'){
                this._objectEventSetup(event_name);
                if(!this._observers[event_name].include(observer))
                    this._observers[event_name].push(observer);
            }else
                for(var e in event_name)
                    this.observe(e,event_name[e]);
        };
        object.stopObserving = function(event_name,observer){
            this._objectEventSetup(event_name);
            if(event_name && observer)
                this._observers[event_name] = this._observers[event_name].without(observer);
            else if(event_name)
                this._observers[event_name] = [];
            else
                this._observers = {};
        };
        object.observeOnce = function(event_name,outer_observer){
            var inner_observer = function(){
                outer_observer.apply(this,arguments);
                this.stopObserving(event_name,inner_observer);
            }.bind(this);
            this._objectEventSetup(event_name);
            this._observers[event_name].push(inner_observer);
        };
        object.notify = function(event_name){
            this._objectEventSetup(event_name);
            var collected_return_values = [];
            var args = $A(arguments).slice(1);
            try{
                for(var i = 0; i < this._observers[event_name].length; ++i)
                    collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i],args) || null);
            }catch(e){
                if(e == $break)
                    return false;
                else
                    throw e;
            }
            return collected_return_values;
        };
        if(object.prototype){
            object.prototype._objectEventSetup = object._objectEventSetup;
            object.prototype.observe = object.observe;
            object.prototype.stopObserving = object.stopObserving;
            object.prototype.observeOnce = object.observeOnce;
            object.prototype.notify = function(event_name){
                if(object.notify){
                    var args = $A(arguments).slice(1);
                    args.unshift(this);
                    args.unshift(event_name);
                    object.notify.apply(object,args);
                }
                this._objectEventSetup(event_name);
                var args = $A(arguments).slice(1);
                var collected_return_values = [];
                try{
                    if(this.options && this.options[event_name] && typeof(this.options[event_name]) == 'function')
                        collected_return_values.push(this.options[event_name].apply(this,args) || null);
                    for(var i = 0; i < this._observers[event_name].length; ++i)
                        collected_return_values.push(this._observers[event_name][i].apply(this._observers[event_name][i],args) || null);
                }catch(e){
                    if(e == $break)
                        return false;
                    else
                        throw e;
                }
                return collected_return_values;
            };
        }
    }
};

/* Begin Core Extensions */

Element.addMethods({
    observeOnce: function(element,event_name,outer_callback){
        var inner_callback = function(){
            outer_callback.apply(this,arguments);
            Element.stopObserving(element,event_name,inner_callback);
        };
        Element.observe(element,event_name,inner_callback);
    }
});

(function(){
    function wheel(event){
        var delta, element, custom_event;
        if (event.wheelDelta) { // IE & Opera
            delta = event.wheelDelta / 120;
        } else if (event.detail) { // W3C
            delta =- event.detail / 3;
        }
        if (!delta) { return; }
        element = Event.extend(event).target;
        element = Element.extend(element.nodeType === Node.TEXT_NODE ? element.parentNode : element);
        custom_event = element.fire('mouse:wheel',{ delta: delta });
        if (custom_event.stopped) {
            Event.stop(event);
            return false;
        }
    }
    document.observe('mousewheel',wheel);
    document.observe('DOMMouseScroll',wheel);
})();

/* End Core Extensions */

var IframeShim = Class.create({
    initialize: function() {
        this.element = new Element('iframe',{
            style: 'position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);display:none',
            src: 'javascript:void(0);',
            frameborder: 0
        });
        $(document.body).insert(this.element);
    },
    hide: function() {
        this.element.hide();
        return this;
    },
    show: function() {
        this.element.show();
        return this;
    },
    positionUnder: function(element) {
        var element = $(element);
        var offset = element.cumulativeOffset();
        var dimensions = element.getDimensions();
        this.element.setStyle({
            left: offset[0] + 'px',
            top: offset[1] + 'px',
            width: dimensions.width + 'px',
            height: dimensions.height + 'px',
            zIndex: element.getStyle('zIndex') - 1
        }).show();
        return this;
    },
    setBounds: function(bounds) {
        for(prop in bounds)
            bounds[prop] += 'px';
        this.element.setStyle(bounds);
        return this;
    },
    destroy: function() {
        if(this.element)
            this.element.remove();
        return this;
    }
});
/**
 * @author Ryan Johnson <http://syntacticx.com/>
 * @copyright 2008 PersonalGrid Corporation <http://personalgrid.com/>
 * @package LivePipe UI
 * @license MIT
 * @url http://livepipe.net/control/window
 * @require prototype.js, effects.js, draggable.js, resizable.js, livepipe.js
 */

if(typeof(Draggable) != 'undefined'){
    Draggable.prototype.draw = function(point) {
        var pos = Position.cumulativeOffset(this.element);
        if(this.options.ghosting) {
            var r = Position.realOffset(this.element);
            pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
        }

        var d = this.currentDelta();
        pos[0] -= d[0]; pos[1] -= d[1];

        if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
            pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
            pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
        }

        var p = [0,1].map(function(i){
            return (point[i]-pos[i]-this.offset[i])
        }.bind(this));

        if(this.options.snap) {
            if(typeof this.options.snap == 'function') {
                p = this.options.snap(p[0],p[1],this);
            } else {
                if(this.options.snap instanceof Array) {
                    p = p.map( function(v, i) {return Math.round(v/this.options.snap[i])*this.options.snap[i] }.bind(this))
                } else {
                    p = p.map( function(v) {return Math.round(v/this.options.snap)*this.options.snap }.bind(this))
                  }
            }
        }

        if(this.options.onDraw)
            this.options.onDraw.bind(this)(p);
        else{
            var style = this.element.style;
            if(this.options.constrainToViewport){
                var viewport_dimensions = document.viewport.getDimensions();
                var container_dimensions = this.element.getDimensions();
                var margin_top = parseInt(this.element.getStyle('margin-top'));
                var margin_left = parseInt(this.element.getStyle('margin-left'));
                var boundary = [[
                    0 - margin_left,
                    0 - margin_top
                ],[
                    (viewport_dimensions.width - container_dimensions.width) - margin_left,
                    (viewport_dimensions.height - container_dimensions.height) - margin_top
                ]];
                if((!this.options.constraint) || (this.options.constraint=='horizontal')){
                    if((p[0] >= boundary[0][0]) && (p[0] <= boundary[1][0]))
                        this.element.style.left = p[0] + "px";
                    else
                        this.element.style.left = ((p[0] < boundary[0][0]) ? boundary[0][0] : boundary[1][0]) + "px";
                }
                if((!this.options.constraint) || (this.options.constraint=='vertical')){
                    if((p[1] >= boundary[0][1] ) && (p[1] <= boundary[1][1]))
                        this.element.style.top = p[1] + "px";
                  else
                        this.element.style.top = ((p[1] <= boundary[0][1]) ? boundary[0][1] : boundary[1][1]) + "px";
                }
            }else{
                if((!this.options.constraint) || (this.options.constraint=='horizontal'))
                  style.left = p[0] + "px";
                if((!this.options.constraint) || (this.options.constraint=='vertical'))
                  style.top     = p[1] + "px";
            }
            if(style.visibility=="hidden")
                style.visibility = ""; // fix gecko rendering
        }
    };
}

if(typeof(Prototype) == "undefined")
    throw "Control.Window requires Prototype to be loaded.";
if(typeof(IframeShim) == "undefined")
    throw "Control.Window requires IframeShim to be loaded.";
if(typeof(Object.Event) == "undefined")
    throw "Control.Window requires Object.Event to be loaded.";
/*
    known issues:
        - when iframe is clicked is does not gain focus
        - safari can't open multiple iframes properly
        - constrainToViewport: body must have no margin or padding for this to work properly
        - iframe will be mis positioned during fade in
        - document.viewport does not account for scrollbars (this will eventually be fixed in the prototype core)
    notes
        - setting constrainToViewport only works when the page is not scrollable
        - setting draggable: true will negate the effects of position: center
*/
Control.Window = Class.create({
    initialize: function(container,options){
        Control.Window.windows.push(this);

        this.container = false;
        this.isOpen = false;
        this.href = false;
        this.sourceContainer = false; //this is optionally the container that will open the window
        this.ajaxRequest = false;
        this.remoteContentLoaded = false; //this is set when the code to load the remote content is run, onRemoteContentLoaded is fired when the connection is closed
        this.numberInSequence = Control.Window.windows.length + 1; //only useful for the effect scoping
        this.indicator = false;
        this.effects = {
            fade: false,
            appear: false
        };
        this.indicatorEffects = {
            fade: false,
            appear: false
        };

        this.options = Object.extend({
            beforeOpen: Prototype.emptyFunction,
            afterOpen: Prototype.emptyFunction,
            beforeClose: Prototype.emptyFunction,
            afterClose: Prototype.emptyFunction,
            height: null,
            width: null,
            className: false,
            position: 'center', //'center', 'relative', [x,y], [function(){return x;},function(){return y;}]
            offsetLeft: 0, //available only for anchors opening the window, or windows set to position: hover
            offsetTop: 0, //""
            iframe: false, //if the window has an href, this will display the href as an iframe instead of requesting the url as an an Ajax.Request
            hover: false, //element object to hover over, or if "true" only available for windows with sourceContainer (an anchor or any element already on the page with an href attribute)
            indicator: false, //element to show or hide when ajax requests, images and iframes are loading
            closeOnClick: false, //does not work with hover,can be: true (click anywhere), 'container' (will refer to this.container), or element (a specific element)
            iframeshim: true, //whether or not to position an iFrameShim underneath the window
            fade: false,
            fadeDuration: 0.75,
            draggable: false,
            onDrag: Prototype.emptyFunction,
            resizable: false,
            minHeight: false,
            minWidth: false,
            maxHeight: false,
            maxWidth: false,
            onResize: Prototype.emptyFunction,
            constrainToViewport: false,
            method: 'post',
            parameters: {},
            onComplete: Prototype.emptyFunction,
            onSuccess: Prototype.emptyFunction,
            onFailure: Prototype.emptyFunction,
            onException: Prototype.emptyFunction,
            onRemoteContentLoaded: Prototype.emptyFunction,
            insertRemoteContentAt: false //false will set this to this.container, can be string selector (first returned will be selected), or an Element that must be a child of this.container
        },options || {});

        this.indicator = this.options.indicator ? $(this.options.indicator) : false;
        if(container){
            if(typeof(container) == "string" && container.match(Control.Window.uriRegex))
                this.href = container;
            else{
                this.container = $(container);
                this.createDefaultContainer(container);
                if(this.container && ((this.container.readAttribute('href') && this.container.readAttribute('href') != '') || (this.options.hover && this.options.hover !== true))){
                    if(this.options.hover && this.options.hover !== true)
                        this.sourceContainer = $(this.options.hover);
                    else{
                        this.sourceContainer = this.container;
                        this.href = this.container.readAttribute('href');
                        var rel = this.href.match(/^#(.+)$/);
                        if(rel && rel[1]){
                            this.container = $(rel[1]);
                            this.href = false;
                        }else
                            this.container = false;
                    }
                    this.sourceContainerOpenHandler = function(event){
                        this.open(event);
                        event.stop();
                        return false;
                    }.bindAsEventListener(this);
                    this.sourceContainerCloseHandler = function(event){
                        this.close(event);
                    }.bindAsEventListener(this);
                    this.sourceContainerMouseMoveHandler = function(event){
                        this.position(event);
                    }.bindAsEventListener(this);
                    if(this.options.hover){
                        this.sourceContainer.observe('mouseenter',this.sourceContainerOpenHandler);
                        this.sourceContainer.observe('mouseleave',this.sourceContainerCloseHandler);
                        if(this.options.position == 'mouse')
                            this.sourceContainer.observe('mousemove',this.sourceContainerMouseMoveHandler);
                    }else
                        this.sourceContainer.observe('click',this.sourceContainerOpenHandler);
                }
            }
        }
        this.createDefaultContainer(container);
        if(this.options.insertRemoteContentAt === false)
            this.options.insertRemoteContentAt = this.container;
        var styles = {
            margin: 0,
            position: 'absolute',
            zIndex: Control.Window.initialZIndexForWindow()
        };
        if(this.options.width)
            styles.width = $value(this.options.width) + 'px';
        if(this.options.height)
            styles.height = $value(this.options.height) + 'px';
        this.container.setStyle(styles);
        if(this.options.className)
            this.container.addClassName(this.options.className);
        this.positionHandler = this.position.bindAsEventListener(this);
        this.outOfBoundsPositionHandler = this.ensureInBounds.bindAsEventListener(this);
        this.bringToFrontHandler = this.bringToFront.bindAsEventListener(this);
        this.container.observe('mousedown',this.bringToFrontHandler);
        this.container.hide();
        this.closeHandler = this.close.bindAsEventListener(this);
        if(this.options.iframeshim){
            this.iFrameShim = new IframeShim();
            this.iFrameShim.hide();
        }
        this.applyResizable();
        this.applyDraggable();

        Event.observe(window,'resize',this.outOfBoundsPositionHandler);

        this.notify('afterInitialize');
    },
    open: function(event){
        if(this.isOpen){
            this.bringToFront();
            return false;
        }
        if(this.notify('beforeOpen') === false)
            return false;
        if(this.options.closeOnClick){
            if(this.options.closeOnClick === true)
                this.closeOnClickContainer = $(document.body);
            else if(this.options.closeOnClick == 'container')
                this.closeOnClickContainer = this.container;
            else if (this.options.closeOnClick == 'overlay'){
                Control.Overlay.load();
                this.closeOnClickContainer = Control.Overlay.container;
            }else
                this.closeOnClickContainer = $(this.options.closeOnClick);
            this.closeOnClickContainer.observe('click',this.closeHandler);
        }
        if(this.href && !this.options.iframe && !this.remoteContentLoaded){
            this.remoteContentLoaded = true;
            if(this.href.match(/\.(jpe?g|gif|png|tiff?)$/i)){
                var img = new Element('img');
                img.observe('load',function(img){
                    this.getRemoteContentInsertionTarget().insert(img);
                    this.position();
                    if(this.notify('onRemoteContentLoaded') !== false){
                        if(this.options.indicator)
                            this.hideIndicator();
                        this.finishOpen();
                    }
                }.bind(this,img));
                img.writeAttribute('src',this.href);
            }else{
                if(!this.ajaxRequest){
                    if(this.options.indicator)
                        this.showIndicator();
                    this.ajaxRequest = new Ajax.Request(this.href,{
                        method: this.options.method,
                        parameters: this.options.parameters,
                        onComplete: function(request){
                            this.notify('onComplete',request);
                            this.ajaxRequest = false;
                        }.bind(this),
                        onSuccess: function(request){
                            this.getRemoteContentInsertionTarget().insert(request.responseText);
                            this.notify('onSuccess',request);
                            if(this.notify('onRemoteContentLoaded') !== false){
                                if(this.options.indicator)
                                    this.hideIndicator();
                                this.finishOpen();
                            }
                        }.bind(this),
                        onFailure: function(request){
                            this.notify('onFailure',request);
                            if(this.options.indicator)
                                this.hideIndicator();
                        }.bind(this),
                        onException: function(request,e){
                            this.notify('onException',request,e);
                            if(this.options.indicator)
                                this.hideIndicator();
                        }.bind(this)
                    });
                }
            }
            return true;
        }else if(this.options.iframe && !this.remoteContentLoaded){
            this.remoteContentLoaded = true;
            if(this.options.indicator)
                this.showIndicator();
            this.getRemoteContentInsertionTarget().insert(Control.Window.iframeTemplate.evaluate({
                href: this.href
            }));
            var iframe = this.container.down('iframe');
            iframe.onload = function(){
                this.notify('onRemoteContentLoaded');
                if(this.options.indicator)
                    this.hideIndicator();
                iframe.onload = null;
            }.bind(this);
        }
        this.finishOpen(event);
        return true
    },
    close: function(event){ //event may or may not be present
        if(!this.isOpen || this.notify('beforeClose',event) === false)
            return false;
        if(this.options.closeOnClick)
            this.closeOnClickContainer.stopObserving('click',this.closeHandler);
        if(this.options.fade){
            this.effects.fade = new Effect.Fade(this.container,{
                queue: {
                    position: 'front',
                    scope: 'Control.Window' + this.numberInSequence
                },
                from: 1,
                to: 0,
                duration: this.options.fadeDuration / 2,
                afterFinish: function(){
                    if(this.iFrameShim)
                        this.iFrameShim.hide();
                    this.isOpen = false;
                    this.notify('afterClose');
                }.bind(this)
            });
        }else{
            this.container.hide();
            if(this.iFrameShim)
                this.iFrameShim.hide();
        }
        if(this.ajaxRequest)
            this.ajaxRequest.transport.abort();
        if(!(this.options.draggable || this.options.resizable) && this.options.position == 'center')
            Event.stopObserving(window,'resize',this.positionHandler);
        if(!this.options.draggable && this.options.position == 'center')
            Event.stopObserving(window,'scroll',this.positionHandler);
        if(this.options.indicator)
            this.hideIndicator();
        if(!this.options.fade){
            this.isOpen = false;
            this.notify('afterClose');
        }
        return true;
    },
    position: function(event){
        if(this.options.position == 'mouse'){
            var xy = [Event.pointerX(event),Event.pointerY(event)];
            this.container.setStyle({
                top: xy[1] + $value(this.options.offsetTop) + 'px',
                left: xy[0] + $value(this.options.offsetLeft) + 'px'
            });
            return;
        }
        var container_dimensions = this.container.getDimensions();
        var viewport_dimensions = document.viewport.getDimensions();
        Position.prepare();
        var offset_left = (Position.deltaX + Math.floor((viewport_dimensions.width - container_dimensions.width) / 2));
        var offset_top = (Position.deltaY + ((viewport_dimensions.height > container_dimensions.height) ? Math.floor((viewport_dimensions.height - container_dimensions.height) / 2) : 0));
        if(this.options.position == 'center'){
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? ((offset_top != null && offset_top > 0) ? offset_top : 0) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? ((offset_left != null && offset_left > 0) ? offset_left : 0) + 'px' : 0
            });
        }else if(this.options.position == 'relative'){
            var xy = this.sourceContainer.cumulativeOffset();
            var top = xy[1] + $value(this.options.offsetTop);
            var left = xy[0] + $value(this.options.offsetLeft);
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.height - (container_dimensions.height),top)) : top) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.width - (container_dimensions.width),left)) : left) + 'px' : 0
            });
        }else if(this.options.position.length){
            var top = $value(this.options.position[1]) + $value(this.options.offsetTop);
            var left = $value(this.options.position[0]) + $value(this.options.offsetLeft);
            this.container.setStyle({
                top: (container_dimensions.height <= viewport_dimensions.height) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.height - (container_dimensions.height),top)) : top) + 'px' : 0,
                left: (container_dimensions.width <= viewport_dimensions.width) ? (this.options.constrainToViewport ? Math.max(0,Math.min(viewport_dimensions.width - (container_dimensions.width),left)) : left) + 'px' : 0
            });
        }
        if(this.iFrameShim)
            this.updateIFrameShimZIndex();
    },
    ensureInBounds: function(){
        if(!this.isOpen)
            return;
        var viewport_dimensions = document.viewport.getDimensions();
        var container_offset = this.container.cumulativeOffset();
        var container_dimensions = this.container.getDimensions();
        if(container_offset.left + container_dimensions.width > viewport_dimensions.width){
            this.container.setStyle({
                left: (Math.max(0,viewport_dimensions.width - container_dimensions.width)) + 'px'
            });
        }
        if(container_offset.top + container_dimensions.height > viewport_dimensions.height){
            this.container.setStyle({
                top: (Math.max(0,viewport_dimensions.height - container_dimensions.height)) + 'px'
            });
        }
    },
    bringToFront: function(){
        Control.Window.bringToFront(this);
        this.notify('bringToFront');
    },
    destroy: function(){
        this.container.stopObserving('mousedown',this.bringToFrontHandler);
        if(this.draggable){
            Draggables.removeObserver(this.container);
            this.draggable.handle.stopObserving('mousedown',this.bringToFrontHandler);
            this.draggable.destroy();
        }
        if(this.resizable){
            Resizables.removeObserver(this.container);
            this.resizable.handle.stopObserving('mousedown',this.bringToFrontHandler);
            this.resizable.destroy();
        }
        if(this.container && !this.sourceContainer)
            this.container.remove();
        if(this.sourceContainer){
            if(this.options.hover){
                this.sourceContainer.stopObserving('mouseenter',this.sourceContainerOpenHandler);
                this.sourceContainer.stopObserving('mouseleave',this.sourceContainerCloseHandler);
                if(this.options.position == 'mouse')
                    this.sourceContainer.stopObserving('mousemove',this.sourceContainerMouseMoveHandler);
            }else
                this.sourceContainer.stopObserving('click',this.sourceContainerOpenHandler);
        }
        if(this.iFrameShim)
            this.iFrameShim.destroy();
        Event.stopObserving(window,'resize',this.outOfBoundsPositionHandler);
        Control.Window.windows = Control.Window.windows.without(this);
        this.notify('afterDestroy');
    },
    applyResizable: function(){
        if(this.options.resizable){
            if(typeof(Resizable) == "undefined")
                throw "Control.Window requires resizable.js to be loaded.";
            var resizable_handle = null;
            if(this.options.resizable === true){
                resizable_handle = new Element('div',{
                    className: 'resizable_handle'
                });
                this.container.insert(resizable_handle);
            }else
                resizable_handle = $(this.options.resziable);
            this.resizable = new Resizable(this.container,{
                handle: resizable_handle,
                minHeight: this.options.minHeight,
                minWidth: this.options.minWidth,
                maxHeight: this.options.constrainToViewport ? function(element){
                    return (document.viewport.getDimensions().height - parseInt(element.style.top || 0)) - (element.getHeight() - parseInt(element.style.height || 0));
                } : this.options.maxHeight,
                maxWidth: this.options.constrainToViewport ? function(element){
                    return (document.viewport.getDimensions().width - parseInt(element.style.left || 0)) - (element.getWidth() - parseInt(element.style.width || 0));
                } : this.options.maxWidth
            });
            this.resizable.handle.observe('mousedown',this.bringToFrontHandler);
            Resizables.addObserver(new Control.Window.LayoutUpdateObserver(this,function(){
                if(this.iFrameShim)
                    this.updateIFrameShimZIndex();
                this.notify('onResize');
            }.bind(this)));
        }
    },
    applyDraggable: function(){
        if(this.options.draggable){
            if(typeof(Draggables) == "undefined")
                throw "Control.Window requires dragdrop.js to be loaded.";
            var draggable_handle = null;
            if(this.options.draggable === true){
                draggable_handle = new Element('div',{
                    className: 'draggable_handle'
                });
                this.container.insert(draggable_handle);
            }else
                draggable_handle = $(this.options.draggable);
            this.draggable = new Draggable(this.container,{
                handle: draggable_handle,
                constrainToViewport: this.options.constrainToViewport,
                zindex: this.container.getStyle('z-index'),
                starteffect: function(){
                    if(Prototype.Browser.IE){
                        this.old_onselectstart = document.onselectstart;
                        document.onselectstart = function(){
                            return false;
                        };
                    }
                }.bind(this),
                endeffect: function(){
                    document.onselectstart = this.old_onselectstart;
                }.bind(this)
            });
            this.draggable.handle.observe('mousedown',this.bringToFrontHandler);
            Draggables.addObserver(new Control.Window.LayoutUpdateObserver(this,function(){
                if(this.iFrameShim)
                    this.updateIFrameShimZIndex();
                this.notify('onDrag');
            }.bind(this)));
        }
    },
    createDefaultContainer: function(container){
        if(!this.container){
            this.container = new Element('div',{
                id: 'control_window_' + this.numberInSequence
            });
            $(document.body).insert(this.container);
            if(typeof(container) == "string" && $(container) == null && !container.match(/^#(.+)$/) && !container.match(Control.Window.uriRegex))
                this.container.update(container);
        }
    },
    finishOpen: function(event){
        this.bringToFront();
        if(this.options.fade){
            if(typeof(Effect) == "undefined")
                throw "Control.Window requires effects.js to be loaded."
            if(this.effects.fade)
                this.effects.fade.cancel();
            this.effects.appear = new Effect.Appear(this.container,{
                queue: {
                    position: 'end',
                    scope: 'Control.Window.' + this.numberInSequence
                },
                from: 0,
                to: 1,
                duration: this.options.fadeDuration / 2,
                afterFinish: function(){
                    if(this.iFrameShim)
                        this.updateIFrameShimZIndex();
                    this.isOpen = true;
                    this.notify('afterOpen');
                }.bind(this)
            });
        }else
            this.container.show();
        this.position(event);
        if(!(this.options.draggable || this.options.resizable) && this.options.position == 'center')
            Event.observe(window,'resize',this.positionHandler,false);
        if(!this.options.draggable && this.options.position == 'center')
            Event.observe(window,'scroll',this.positionHandler,false);
        if(!this.options.fade){
            this.isOpen = true;
            this.notify('afterOpen');
        }
        return true;
    },
    showIndicator: function(){
        this.showIndicatorTimeout = window.setTimeout(function(){
            if(this.options.fade){
                this.indicatorEffects.appear = new Effect.Appear(this.indicator,{
                    queue: {
                        position: 'front',
                        scope: 'Control.Window.indicator.' + this.numberInSequence
                    },
                    from: 0,
                    to: 1,
                    duration: this.options.fadeDuration / 2
                });
            }else
                this.indicator.show();
        }.bind(this),Control.Window.indicatorTimeout);
    },
    hideIndicator: function(){
        if(this.showIndicatorTimeout)
            window.clearTimeout(this.showIndicatorTimeout);
        this.indicator.hide();
    },
    getRemoteContentInsertionTarget: function(){
        return typeof(this.options.insertRemoteContentAt) == "string" ? this.container.down(this.options.insertRemoteContentAt) : $(this.options.insertRemoteContentAt);
    },
    updateIFrameShimZIndex: function(){
        if(this.iFrameShim)
            this.iFrameShim.positionUnder(this.container);
    }
});
Object.extend(Control.Window,{
    windows: [],
    baseZIndex: 9999,
    indicatorTimeout: 250,
    iframeTemplate: new Template('<iframe src="#{href}" width="100%" height="100%" frameborder="0"></iframe>'),
    uriRegex: /^(\/|\#|https?\:\/\/|[\w]+\/)/,
    bringToFront: function(w){
        Control.Window.windows = Control.Window.windows.without(w);
        Control.Window.windows.push(w);
        Control.Window.windows.each(function(w,i){
            var z_index = Control.Window.baseZIndex + i;
            w.container.setStyle({
                zIndex: z_index
            });
            if(w.isOpen){
                if(w.iFrameShim)
                w.updateIFrameShimZIndex();
            }
            if(w.options.draggable)
                w.draggable.options.zindex = z_index;
        });
    },
    open: function(container,options){
        var w = new Control.Window(container,options);
        w.open();
        return w;
    },
    initialZIndexForWindow: function(w){
        return Control.Window.baseZIndex + (Control.Window.windows.length - 1);
    }
});
Object.Event.extend(Control.Window);

Control.Window.LayoutUpdateObserver = Class.create({
    initialize: function(w,observer){
        this.w = w;
        this.element = $(w.container);
        this.observer = observer;
    },
    onStart: Prototype.emptyFunction,
    onEnd: function(event_name,instance){
        if(instance.element == this.element && this.iFrameShim)
            this.w.updateIFrameShimZIndex();
    },
    onResize: function(event_name,instance){
        if(instance.element == this.element)
            this.observer(this.element);
    },
    onDrag: function(event_name,instance){
        if(instance.element == this.element)
            this.observer(this.element);
    }
});

Control.Overlay = {
    id: 'control_overlay',
    loaded: false,
    container: false,
    lastOpacity: 0,
    styles: {
        position: 'fixed',
        top: 0,
        left: 0,
        width: '100%',
        height: '100%',
        zIndex: 9998
    },
    ieStyles: {
        position: 'absolute',
        top: 0,
        left: 0,
        zIndex: 9998
    },
    effects: {
        fade: false,
        appear: false
    },
    load: function(){
        if(Control.Overlay.loaded)
            return false;
        Control.Overlay.loaded = true;
        Control.Overlay.container = new Element('div',{
            id: Control.Overlay.id
        });
        $(document.body).insert(Control.Overlay.container);
        if(Prototype.Browser.IE){
            Control.Overlay.container.setStyle(Control.Overlay.ieStyles);
            Event.observe(window,'scroll',Control.Overlay.positionOverlay);
            Event.observe(window,'resize',Control.Overlay.positionOverlay);
            Control.Overlay.observe('beforeShow',Control.Overlay.positionOverlay);
        }else
            Control.Overlay.container.setStyle(Control.Overlay.styles);
        Control.Overlay.iFrameShim = new IframeShim();
        Control.Overlay.iFrameShim.hide();
        Event.observe(window,'resize',Control.Overlay.positionIFrameShim);
        Control.Overlay.container.hide();
        return true;
    },
    unload: function(){
        if(!Control.Overlay.loaded)
            return false;
        Event.stopObserving(window,'resize',Control.Overlay.positionOverlay);
        Control.Overlay.stopObserving('beforeShow',Control.Overlay.positionOverlay);
        Event.stopObserving(window,'resize',Control.Overlay.positionIFrameShim);
        Control.Overlay.iFrameShim.destroy();
        Control.Overlay.container.remove();
        Control.Overlay.loaded = false;
        return true;
    },
    show: function(opacity,fade){
        if(Control.Overlay.notify('beforeShow') === false)
            return false;
        Control.Overlay.lastOpacity = opacity;
        Control.Overlay.positionIFrameShim();
        Control.Overlay.iFrameShim.show();
        if(fade){
            if(typeof(Effect) == "undefined")
                throw "Control.Window requires effects.js to be loaded."
            if(Control.Overlay.effects.fade)
                Control.Overlay.effects.fade.cancel();
            Control.Overlay.effects.appear = new Effect.Appear(Control.Overlay.container,{
                queue: {
                    position: 'end',
                    scope: 'Control.Overlay'
                },
                afterFinish: function(){
                    Control.Overlay.notify('afterShow');
                },
                from: 0,
                to: Control.Overlay.lastOpacity,
                duration: (fade === true ? 0.75 : fade) / 2
            });
        }else{
            Control.Overlay.container.setStyle({
                opacity: opacity || 1
            });
            Control.Overlay.container.show();
            Control.Overlay.notify('afterShow');
        }
        return true;
    },
    hide: function(fade){
        if(Control.Overlay.notify('beforeHide') === false)
            return false;
        if(Control.Overlay.effects.appear)
            Control.Overlay.effects.appear.cancel();
        Control.Overlay.iFrameShim.hide();
        if(fade){
            Control.Overlay.effects.fade = new Effect.Fade(Control.Overlay.container,{
                queue: {
                    position: 'front',
                    scope: 'Control.Overlay'
                },
                afterFinish: function(){
                    Control.Overlay.notify('afterHide');
                },
                from: Control.Overlay.lastOpacity,
                to: 0,
                duration: (fade === true ? 0.75 : fade) / 2
            });
        }else{
            Control.Overlay.container.hide();
            Control.Overlay.notify('afterHide');
        }
        return true;
    },
    positionIFrameShim: function(){
        if(Control.Overlay.container.visible())
            Control.Overlay.iFrameShim.positionUnder(Control.Overlay.container);
    },
    positionOverlay: function(){
        Control.Overlay.container.setStyle({
            width: document.body.clientWidth + 'px',
            height: document.body.clientHeight + 'px'
        });
    }
};
Object.Event.extend(Control.Overlay);

Control.ToolTip = Class.create(Control.Window,{
    initialize: function($super,container,tooltip,options){
        $super(tooltip,Object.extend(Object.extend(Object.clone(Control.ToolTip.defaultOptions),options || {}),{
            position: 'mouse',
            hover: container
        }));
    }
});
Object.extend(Control.ToolTip,{
    defaultOptions: {
        offsetLeft: 10
    }
});

Control.Modal = Class.create(Control.Window,{
    initialize: function($super,container,options){
        Control.Modal.InstanceMethods.beforeInitialize.bind(this)();
        $super(container,Object.extend(Object.clone(Control.Modal.defaultOptions),options || {}));
    }
});
Object.extend(Control.Modal,{
    defaultOptions: {
        overlayOpacity: 0.5,
        closeOnClick: 'overlay'
    },
    current: false,
    open: function(container,options){
        var modal = new Control.Modal(container,options);
        modal.open();
        return modal;
    },
    close: function(){
        if(Control.Modal.current)
            Control.Modal.current.close();
    },
    InstanceMethods: {
        beforeInitialize: function(){
            Control.Overlay.load();
            this.overlayFinishedOpening = false;
            this.observe('beforeOpen',Control.Modal.Observers.beforeOpen.bind(this));
            this.observe('afterOpen',Control.Modal.Observers.afterOpen.bind(this));
            this.observe('afterClose',Control.Modal.Observers.afterClose.bind(this));
        }
    },
    Observers: {
        beforeOpen: function(){
            if(!this.overlayFinishedOpening){
                Control.Overlay.observeOnce('afterShow',function(){
                    this.overlayFinishedOpening = true;
                    this.open();
                }.bind(this));
                Control.Overlay.show(this.options.overlayOpacity,this.options.fade ? this.options.fadeDuration : false);
                throw $break;
            }else
            Control.Window.windows.without(this).invoke('close');
        },
        afterOpen: function(){
            Control.Modal.current = this;
        },
        afterClose: function(){
            Control.Overlay.hide(this.options.fade ? this.options.fadeDuration : false);
            Control.Modal.current = false;
            this.overlayFinishedOpening = false;
        }
    }
});

Control.LightBox = Class.create(Control.Window,{
    initialize: function($super,container,options){
        this.allImagesLoaded = false;
        if(options.modal){
            var options = Object.extend(Object.clone(Control.LightBox.defaultOptions),options || {});
            options = Object.extend(Object.clone(Control.Modal.defaultOptions),options);
            options = Control.Modal.InstanceMethods.beforeInitialize.bind(this)(options);
            $super(container,options);
        }else
            $super(container,Object.extend(Object.clone(Control.LightBox.defaultOptions),options || {}));
        this.hasRemoteContent = this.href && !this.options.iframe;
        if(this.hasRemoteContent)
            this.observe('onRemoteContentLoaded',Control.LightBox.Observers.onRemoteContentLoaded.bind(this));
        else
            this.applyImageObservers();
        this.observe('beforeOpen',Control.LightBox.Observers.beforeOpen.bind(this));
    },
    applyImageObservers:function(){
        var images = this.getImages();
        this.numberImagesToLoad = images.length;
        this.numberofImagesLoaded = 0;
        images.each(function(image){
            image.observe('load',function(image){
                ++this.numberofImagesLoaded;
                if(this.numberImagesToLoad == this.numberofImagesLoaded){
                    this.allImagesLoaded = true;
                    this.onAllImagesLoaded();
                }
            }.bind(this,image));
            image.hide();
        }.bind(this));
    },
    onAllImagesLoaded: function(){
        this.getImages().each(function(image){
            this.showImage(image);
        }.bind(this));
        if(this.hasRemoteContent){
            if(this.options.indicator)
                this.hideIndicator();
            this.finishOpen();
        }else
            this.open();
    },
    getImages: function(){
        return this.container.select(Control.LightBox.imageSelector);
    },
    showImage: function(image){
        image.show();
    }
});
Object.extend(Control.LightBox,{
    imageSelector: 'img',
    defaultOptions: {},
    Observers: {
        beforeOpen: function(){
            if(!this.hasRemoteContent && !this.allImagesLoaded)
                throw $break;
        },
        onRemoteContentLoaded: function(){
            this.applyImageObservers();
            if(!this.allImagesLoaded)
                throw $break;
        }
    }
});





document.observe("dom:loaded", function() {
  stdout('application.js')
  t1 = new Date();
  sevenUp.test()

  if(POWER >= 0 )
    prevent_cache_retrieve($(document.body))

  $$('a:not(.pc)').each( function(a){
    var sublinks = a.href.split('__')
    var current_sublink="";
    for(var i=0;i<sublinks.length;i++){
      if(i>0)
        current_sublink += '__'
      current_sublink += sublinks[i]

      if( current_sublink == location.href && !a.match(/.*#.*/)){
        a.addClassName('active')
      }
    }
  })

  t2 = new Date();
  stdout('application.js '+((t2.getTime()-t1.getTime())+'ms'))
});


function prevent_cache_retrieve(root){
  var re = /^[/]?[a-z_]+$/ // "/title_here" or "title_here"
  var s= ""
  var host = location.href.substring(0,location.href.length - (location.pathname+location.search+location.hash).length )
  var hostre = RegExp.escape(host)
  var href = ''
  root.select('a').each(function(a){
      href = a.href
      if(href.match(hostre)){
        url_key = href.substring(host.length)
        if(PAGES_URL_MAP[url_key] &&  url_key.match(re)){
          a.setAttribute('href',host+'/fresh'+url_key)
        }
      }
  })

}

BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = prevent_cache_retrieve
document.observe("dom:loaded", function() {
  stdout('admin_controls.js ')
    t1 = new Date();
  o = $('admin_options')
  if(o)
    var mydrag = new Draggable('admin_options', { scroll: window ,zindex:'15'});

   var o = $('toggle_grid')
   if(o)
    o.observe('click', function(e){
      $('index').down('.container').toggleClassName('showgrid')
      e.stop()
    })
  o = $('toggle_controls')
  if(o){
    o.observe('click', function(e){
      stdout('Toggle controls')
      $$('.controls').each( function(container){
        container.toggle()
      })
      e.stop()
    })
  }
  o = $('impersonate_form')
  if(o)
      o.down('select').observe('change', function(e){
        var f = $('impersonate_form')
        hidden = f.down('.redirect')
        hidden.writeAttribute('value',location.href)
        f.submit()
     })
  t2 = new Date();
  stdout('admin_controls.js '+((t2.getTime()-t1.getTime())+'ms'))
})


function ajaxize_resource(singular,plural){


  $$('.'+plural+' a').each(function( a ) {

    extra_parameters = ''
    action = get_rest_action(a,singular,plural)




    if("edit"==action) {

      response_container = a.up('.'+singular)
      extra_parameters = ''
      ajaxize_link(a,response_container,extra_parameters,true)

    } else if ("delete"==action) {

      response_container = a.up('.'+plural)
      extra_parameters = ''
      ajaxize_link(a,response_container,extra_parameters,true)

    }else if("new"==action) {

      response_container = a.up('.'+plural)
      extra_parameters = ''
      ajaxize_link(a,response_container,extra_parameters,true)

    }else if("show"==action) {

      response_container = a.up('.'+singular)
      extra_parameters = ''
      ajaxize_link(a,response_container,extra_parameters,false)

    }else if("index"==action) {
      response_container = a.up('.'+plural)
      extra_parameters = ''
      ajaxize_link(a,response_container,extra_parameters,false)
    }


  })
}

function get_rest_action(element,plural,singular){

  var a = (element.tagName == 'A' ? element : false)

  if(a && a.readAttribute('href')){
    href = a.readAttribute('href');

    if( href.match('.*'+plural+'/[0-9]*/edit.*') )
      return 'edit'

    if (href.match('.*'+plural+'/new.*') )
      return 'new'

    if(a.readAttribute('onclick')){
      onclick =a.readAttribute('onclick')
      href = a.readAttribute('href')

      c1 = onclick.match('\.setAttribute\(.*name.,.*method.*\)')
      c2 = onclick.match('\.setAttribute\(.*value.,.*delete.*\)');
      if(onclick&&  c1 && c2){
        return 'delete'
      }
    }

    if (href.match('.*'+plural+'/[0-9]*.*') )
      return 'show'

    if (href.match('.*'+plural) )
      return 'index'
  }

  return false
}

function ajaxize_delete_part_link(a) {

  var href = a.readAttribute('href')
  var url =href.split('?')[0]
  var parameters = href.split('?').length > 1 ? href.split('?')[1]:''

  extra_parameters = parameters!='' && extra_parameters.charAt(0) != '&' ? '&'+extra_parameters: extra_parameters //adds '&' in front of extra parameters if necessary
  parameters += extra_parameters ? extra_parameters : ''

  href = url+'?'+parameters

  a.setAttribute('href',href)
}


function ajaxize_link(a,options)
{

  var href = a.readAttribute('href')
  var url =href.split('?')[0]
  var parameters = href.split('?').length > 1 ? href.split('?')[1]: ''

  options.querrystring = parameters +( options.querrystring ? '&'+options.querrystring : '')

  if ( Object.isFunction(options.response_container) ){
    options.response_elemet = options.response_container(a)
  }else{
    options.response_elemet = options.response_container
  }

  send_request(url,options)

  return false; //prevente clicked links ...
}
function send_request(url,options)
{
  var method = options.method ? options.method : 'get'
  var querrystring = options.querrystring ? options.querrystring : ''
  var response_container = options.response_container
  var update_mode = options.update_mode ? options.update_mode : 'update'
  var insert_position = options.insert_position
  var after_update = options.after_update
  var before_update = options.before_update
  var asynchronous = options.asynchronous==undefined ? true : options.asynchronous

  if(method!='get')
    querrystring += '&authenticity_token='+AUTHENTICITY_TOKEN // AUTHENTICITY_TOKEN defined in /views/shared/js_constants.js.haml , renderd in layout/application.html.haml


  var r = new Ajax.Request(
    url,
    {
      asynchronous:asynchronous,
      evalScripts:true,
      method: method,
      parameters: querrystring,
      onSuccess: function(transport){
        if (before_update)
          before_update()

        if(response_container){
          stdout('UM: '+update_mode)
          if(options.remove_outer_tag)
            transport.responseText = remove_outer_tag(transport.responseText)
          if( update_mode == 'update'){
            response_container.update(transport.responseText)
          }else if( update_mode == 'replace'){
            Element.replace(response_container, transport.responseText) //while here we replace the element completly
          }else if(update_mode == 'prepend'){
            Element.insert(response_container, { 'top': transport.responseText });
          }else if(update_mode == 'append'){
            Element.insert(response_container, { 'bottom': transport.responseText });
          }else if(update_mode == 'insert_at'){
            c = response_container.children[insert_position]
            if(c){
              Element.insert(c, { before: transport.responseText })
            }else{
              Element.insert(response_container, { 'bottom': transport.responseText });
            }
          }
          var i = 0
          t1 = new Date();
          for(i = 0; i < BEHAVIOR_APPENDERS.length;i++){
            stdout(''+i+' '+BEHAVIOR_APPENDERS[i].name  )
            BEHAVIOR_APPENDERS[i](response_container)
          }
          t2 = new Date();
          stdout('ajax_refresh.js '+((t2.getTime()-t1.getTime())+'ms'))

        }

        if (after_update)
          after_update()
      },
      onFailure: function(transport){
       stdout( "ajax ERROR!")
      }
    }
    );
}


function send_form(form,options)
{
  var method = options.method ? options.method : 'get'
  var querrystring = options.querrystring ? options.querrystring : ''
  var response_container = options.response_container
  var update_mode = options.update_mode ? options.update_mode : 'update'
  var insert_position = options.insert_position
  var after_update = options.after_update
  var before_update = options.before_update
  var asynchronous = options.asynchronous==undefined ? true : options.asynchronous


  form.request(
    {
      asynchronous:asynchronous,
      evalScripts:true,
      method: method,
      parameters: querrystring,
      onSuccess: function(transport){
        if (before_update)
          before_update()

        if(response_container){
          stdout('UM: '+update_mode)
          if(options.remove_outer_tag)
            transport.responseText = remove_outer_tag(transport.responseText)
          if( update_mode == 'update'){
            response_container.update(transport.responseText)
          }else if( update_mode == 'replace'){
            Element.replace(response_container, transport.responseText) //while here we replace the element completly
          }else if(update_mode == 'prepend'){
            Element.insert(response_container, { 'top': transport.responseText });
          }else if(update_mode == 'append'){
            Element.insert(response_container, { 'bottom': transport.responseText });
          }else if(update_mode == 'insert_at'){
            c = response_container.children[insert_position]
            if(c){
              Element.insert(c, { before: transport.responseText })
            }else{
              Element.insert(response_container, { 'bottom': transport.responseText });
            }
          }
          var i = 0
          t1 = new Date();
          for(i = 0; i < BEHAVIOR_APPENDERS.length;i++){
            stdout(''+i+' '+BEHAVIOR_APPENDERS[i].name  )
            BEHAVIOR_APPENDERS[i](response_container)
          }
          t2 = new Date();
          stdout('ajax_refresh.js '+((t2.getTime()-t1.getTime())+'ms'))

        }

        if (after_update)
          after_update()
      },
      onFailure: function(transport){
       stdout( "ajax ERROR!")
      }
    }
    );
}


function remove_outer_tag(text_html){
  var state = 'seek_start'

  for(var i=0; i < text_html.length;i++){
    if (state == 'seek_start' && text_html.charAt(i)=='<' ){
      state = 'ignore_tag'
    }else if (state == 'ignore_tag' && text_html.charAt(i)=='>' ){
      text_html = text_html.substring(i+1,text_html.length)
      break;
    }
  }

  state = 'seek_start'
  for(var j=text_html.length; i > 0 ;j--){
    if (state == 'seek_start' && text_html.charAt(j)=='>' ){
      state = 'ignore_tag'
    }else if (state == 'ignore_tag' && text_html.charAt(j)=='<' ){
      text_html = text_html.substring(0,j)
      break;
    }
  }

  return text_html

}

function prepareForPartForm(a){
  var part = a.up('.part')
  part.setStyle({height:'auto'})
  part.addClassName('part_hover')
  part.childElements().each(function(c){
    if(c.hasClassName('.part_form')){
      c.show()
    }else{
      c.hide()
    }
  })
}

function cancelPartForm(cancel_link){
  var part = cancel_link.up('.part')
  part.removeClassName('part_hover')
  part.childElements().each(function(c){
    if(c.hasClassName('part_form'))
      c.remove()
    c.show()
  })
  return false;
}
/**
 * Ajax upload
 * Project page - http://valums.com/ajax-upload/
 * Copyright (c) 2008 Andris Valums, http://valums.com
 * Licensed under the MIT license (http://valums.com/mit-license/)
 * Version 3.5 (23.06.2009)
 */

/**
 * Changes from the previous version:
 * 1. Added better JSON handling that allows to use 'application/javascript' as a response
 * 2. Added demo for usage with jQuery UI dialog
 * 3. Fixed IE "mixed content" issue when used with secure connections
 *
 * For the full changelog please visit:
 * http://valums.com/ajax-upload-changelog/
 */

(function(){

var d = document, w = window;

/**
 * Get element by id
 */
function get(element){
	if (typeof element == "string")
		element = d.getElementById(element);
	return element;
}

/**
 * Attaches event to a dom element
 */
function addEvent(el, type, fn){
	if (w.addEventListener){
		el.addEventListener(type, fn, false);
	} else if (w.attachEvent){
		var f = function(){
		  fn.call(el, w.event);
		};
		el.attachEvent('on' + type, f)
	}
}


/**
 * Creates and returns element from html chunk
 */
var toElement = function(){
	var div = d.createElement('div');
	return function(html){
		div.innerHTML = html;
		var el = div.childNodes[0];
		div.removeChild(el);
		return el;
	}
}();

function hasClass(ele,cls){
	return ele.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)'));
}
function addClass(ele,cls) {
	if (!hasClass(ele,cls)) ele.className += " "+cls;
}
function removeClass(ele,cls) {
	var reg = new RegExp('(\\s|^)'+cls+'(\\s|$)');
	ele.className=ele.className.replace(reg,' ');
}

if (document.documentElement["getBoundingClientRect"]){
	var getOffset = function(el){
		var box = el.getBoundingClientRect(),
		doc = el.ownerDocument,
		body = doc.body,
		docElem = doc.documentElement,

		clientTop = docElem.clientTop || body.clientTop || 0,
		clientLeft = docElem.clientLeft || body.clientLeft || 0,



		zoom = 1;
		if (body.getBoundingClientRect) {
			var bound = body.getBoundingClientRect();
			zoom = (bound.right - bound.left)/body.clientWidth;
		}
		if (zoom > 1){
			clientTop = 0;
			clientLeft = 0;
		}
		var top = box.top/zoom + (window.pageYOffset || docElem && docElem.scrollTop/zoom || body.scrollTop/zoom) - clientTop,
		left = box.left/zoom + (window.pageXOffset|| docElem && docElem.scrollLeft/zoom || body.scrollLeft/zoom) - clientLeft;

		return {
			top: top,
			left: left
		};
	}

} else {
	var getOffset = function(el){
		if (w.jQuery){
			return jQuery(el).offset();
		}

		var top = 0, left = 0;
		do {
			top += el.offsetTop || 0;
			left += el.offsetLeft || 0;
		}
		while (el = el.offsetParent);

		return {
			left: left,
			top: top
		};
	}
}

function getBox(el){
	var left, right, top, bottom;
	var offset = getOffset(el);
	left = offset.left;
	top = offset.top;

	right = left + el.offsetWidth;
	bottom = top + el.offsetHeight;

	return {
		left: left,
		right: right,
		top: top,
		bottom: bottom
	};
}

/**
 * Crossbrowser mouse coordinates
 */
function getMouseCoords(e){
	if (!e.pageX && e.clientX){
		var zoom = 1;
		var body = document.body;

		if (body.getBoundingClientRect) {
			var bound = body.getBoundingClientRect();
			zoom = (bound.right - bound.left)/body.clientWidth;
		}

		return {
			x: e.clientX / zoom + d.body.scrollLeft + d.documentElement.scrollLeft,
			y: e.clientY / zoom + d.body.scrollTop + d.documentElement.scrollTop
		};
	}

	return {
		x: e.pageX,
		y: e.pageY
	};

}
/**
 * Function generates unique id
 */
var getUID = function(){
	var id = 0;
	return function(){
		return 'ValumsAjaxUpload' + id++;
	}
}();

function fileFromPath(file){
	return file.replace(/.*(\/|\\)/, "");
}

function getExt(file){
	return (/[.]/.exec(file)) ? /[^.]+$/.exec(file.toLowerCase()) : '';
}

Ajax_upload = AjaxUpload = function(button, options){
	if (button.jquery){
		button = button[0];
	} else if (typeof button == "string" && /^#.*/.test(button)){
		button = button.slice(1);
	}
	button = get(button);

	this._input = null;
	this._button = button;
	this._disabled = false;
	this._submitting = false;
	this._justClicked = false;
	this._parentDialog = d.body;

	if (window.jQuery && jQuery.ui && jQuery.ui.dialog){
		var parentDialog = jQuery(this._button).parents('.ui-dialog');
		if (parentDialog.length){
			this._parentDialog = parentDialog[0];
		}
	}

	this._settings = {
		action: 'upload.php',
		name: 'userfile',
		data: {},
		autoSubmit: true,
		responseType: false,
		onChange: function(file, extension){},
		onSubmit: function(file, extension){},
		onComplete: function(file, response) {}
	};

	for (var i in options) {
		this._settings[i] = options[i];
	}

	this._createInput();
	this._rerouteClicks();
}

AjaxUpload.prototype = {
	setData : function(data){
		this._settings.data = data;
	},
	disable : function(){
		this._disabled = true;
	},
	enable : function(){
		this._disabled = false;
	},
	destroy : function(){
		if(this._input){
			if(this._input.parentNode){
				this._input.parentNode.removeChild(this._input);
			}
			this._input = null;
		}
	},
	/**
	 * Creates invisible file input above the button
	 */
	_createInput : function(){
		var self = this;
		var input = d.createElement("input");
		input.setAttribute('type', 'file');
		input.setAttribute('name', this._settings.name);
		var styles = {
			'position' : 'absolute'
			,'margin': '-5px 0 0 -175px'
			,'padding': 0
			,'width': '220px'
			,'height': '30px'
			,'fontSize': '14px'
			,'opacity': 0
			,'cursor': 'pointer'
			,'display' : 'none'
			,'zIndex' :  2147483583 //Max zIndex supported by Opera 9.0-9.2x
		};
		for (var i in styles){
			input.style[i] = styles[i];
		}

		if ( ! (input.style.opacity === "0")){
			input.style.filter = "alpha(opacity=0)";
		}

		this._parentDialog.appendChild(input);

		addEvent(input, 'change', function(){
			var file = fileFromPath(this.value);
			if(self._settings.onChange.call(self, file, getExt(file)) == false ){
				return;
			}
			if (self._settings.autoSubmit){
				self.submit();
			}
		});

		addEvent(input, 'click', function(){
			self.justClicked = true;
			setTimeout(function(){
				self.justClicked = false;
			}, 3000);
		});

		this._input = input;
	},
	_rerouteClicks : function (){
		var self = this;


		var box, dialogOffset = {top:0, left:0}, over = false;
		addEvent(self._button, 'mouseover', function(e){
			if (!self._input || over) return;
			over = true;
			box = getBox(self._button);

			if (self._parentDialog != d.body){
				dialogOffset = getOffset(self._parentDialog);
			}
		});


		addEvent(document, 'mousemove', function(e){
			var input = self._input;
			if (!input || !over) return;

			if (self._disabled){
				removeClass(self._button, 'hover');
				input.style.display = 'none';
				return;
			}

			var c = getMouseCoords(e);

			if ((c.x >= box.left) && (c.x <= box.right) &&
			(c.y >= box.top) && (c.y <= box.bottom)){
				input.style.top = c.y - dialogOffset.top + 'px';
				input.style.left = c.x - dialogOffset.left + 'px';
				input.style.display = 'block';
				addClass(self._button, 'hover');
			} else {
				over = false;
				if (!self.justClicked){
					input.style.display = 'none';
				}
				removeClass(self._button, 'hover');
			}
		});

	},
	/**
	 * Creates iframe with unique name
	 */
	_createIframe : function(){
		var id = getUID();

		var iframe = toElement('<iframe src="javascript:false;" name="' + id + '" />');
		iframe.id = id;
		iframe.style.display = 'none';
    iframe.style.height = '0px';
		d.body.appendChild(iframe);
		return iframe;
	},
	/**
	 * Upload file without refreshing the page
	 */
	submit : function(){
		var self = this, settings = this._settings;

		if (this._input.value === ''){
			return;
		}

		var file = fileFromPath(this._input.value);

		if (! (settings.onSubmit.call(this, file, getExt(file)) == false)) {
			var iframe = this._createIframe();

			var form = this._createForm(iframe);
			form.appendChild(this._input);

			form.submit();

			d.body.removeChild(form);
			form = null;
			this._input = null;

			this._createInput();

			var toDeleteFlag = false;

			addEvent(iframe, 'load', function(e){

				if (// For Safari
					iframe.src == "javascript:'%3Chtml%3E%3C/html%3E';" ||
					iframe.src == "javascript:'<html></html>';"){

					if( toDeleteFlag ){
						setTimeout( function() {
							d.body.removeChild(iframe);
						}, 0);
					}
					return;
				}

				var doc = iframe.contentDocument ? iframe.contentDocument : frames[iframe.id].document;

				if (doc.readyState && doc.readyState != 'complete'){
					return;
				}

				if (doc.body && doc.body.innerHTML == "false"){
					return;
				}

				var response;

				if (doc.XMLDocument){
					response = doc.XMLDocument;
				} else if (doc.body){
					response = doc.body.innerHTML;
					if (settings.responseType && settings.responseType.toLowerCase() == 'json'){
						if (doc.body.firstChild && doc.body.firstChild.nodeName.toUpperCase() == 'PRE'){
							response = doc.body.firstChild.firstChild.nodeValue;
						}
						if (response) {
							response = window["eval"]("(" + response + ")");
						} else {
							response = {};
						}
					}
				} else {
					var response = doc;
				}

				settings.onComplete.call(self, file, response);

				toDeleteFlag = true;

				iframe.src = "javascript:'<html></html>';";
			});

		} else {
			d.body.removeChild(this._input);
			this._input = null;

			this._createInput();
		}
	},
	/**
	 * Creates form, that will be submitted to iframe
	 */
	_createForm : function(iframe){
		var settings = this._settings;

		var form = toElement('<form method="post" enctype="multipart/form-data"></form>');
		form.style.display = 'none';
		form.action = settings.action;
		form.target = iframe.name;
		d.body.appendChild(form);

		for (var prop in settings.data){
			var el = d.createElement("input");
			el.type = 'hidden';
			el.name = prop;
			el.value = settings.data[prop];
			form.appendChild(el);
		}
		return form;
	}
};
})();
document.observe("dom:loaded", function() {
});

function ajaxupload_init(root){
  t1 = new Date();

  root.select('.not_decided').each( function(el){
    var id=el.id
    var name = el.readAttribute('name')
    var form = el.up('form')
    var action = form.readAttribute('action')

    stdout('ajax upload init')
    new AjaxUpload(id, {
            action: action,
            name: name,
            onSubmit : function(file , ext){
                    if (! (ext && /^(jpg|png|jpeg|gif)$/.test(ext))){
                            return false;
                    }

                    var button = $(this._button)
                    var form = button.up('form')
                    d = form.serialize(true)
                    this.setData(d)
            }
    });
  })
  t2 = new Date();
  stdout('ajaxupload_init.js '+((t2.getTime()-t1.getTime())+'ms'))
}

var SUPPORTED_BEHAVIORS = ["left_right_page","left_right_slide_page"]

document.observe("dom:loaded", function() {
  stdout('animation_with_menu_page.js')
  t1 = new Date();
  animation_with_menu_page_init($(document.body))
  t2 = new Date();
  stdout('animation_with_menu_page.js '+((t2.getTime()-t1.getTime())+'ms'))
});

function animation_with_menu_page_init(root){
  var pages = root.select('.animation_with_menu_page')
  if(pages)
    pages.each(function(p){
      stdout('1 '+p.id)
      var animated_page = get_animated_page(p);
      var menu_page = get_menu_page(p);

      stdout('animated_page ' + animated_page.id)
      stdout('menu_page ' + menu_page.id)
      if(animated_page && menu_page){ //ok all recognized setu the observers
        var relevant_links = get_relevant_links(menu_page)

        relevant_links.each(function(ra){
          if(ra.href.split('#')[1]=='0' || ra.href.split('#')[1]=='1'){
            ra.addClassName('active')
            throw $break;
          }
        })



        stdout('relevant_links' + relevant_links.length)
        relevant_links.each(function(a){
          a.observe('click',function(e){
            e.stop()
            var a = e.element()
            var p = a.up('.animation_with_menu_page')
            var animated_page = get_animated_page(p);
            var menu_page = get_menu_page(p);
            var relevant_links = get_relevant_links(menu_page)
            var position = relevant_links.indexOf(a);

            relevant_links.each(function(ra){
              ra.removeClassName('active')
            })
            a.addClassName('active')

            if(a.href.split('#')[1]!='0'){
              position = parseInt(a.href.split('#')[1]) - 1
            }

            var funname = get_page_behaviour(animated_page) + '_transition'
            transition_fun = eval(funname)
            if(transition_fun){
              transition_fun(animated_page,{
                'next':position
              })
            }else{
              stdout('ERROR: cant eval function: '+funname)
            }
          })
        })
      }else{
        stdout('ERROR: animation_with_menu_init: one of 2 pages cant be found')
      }

    })
}

function  get_relevant_links(menu_page){

  var as = new Array()
  menu_page.select('a').each(function(a){
    num = a.href.split('#')[1]
    if(num && num.match(/[0-9]+/))
      as[as.length] = a
  })
  return as;
}

function get_animated_page(p){
  var animated_page = null
  stdout('get_animated_page '+p.id)
  p.childElements().findAll(function(c){
    return c.hasClassName('page')
    }).each(function(child_page){
    if(get_page_behaviour(child_page)){ //animated page ?
      animated_page = child_page
      throw $break;
    }
  })
  stdout('get_animated_page '+animated_page)
  return animated_page;
}

function get_menu_page(p){
  stdout('get_menu_page '+p.id)
  var menu_page = null;
  p.childElements().findAll(function(c){
    return c.hasClassName('page')
    }).each(function(child_page){
    var beh = get_page_behaviour(child_page)
    if(!beh){//menu page has no behaviour attached
      menu_page = child_page
      throw $break;
    }
  })

  return menu_page
}

function get_page_behaviour(p){
  for(var i = 0;i<SUPPORTED_BEHAVIORS.length;i++){
    if(p.hasClassName(SUPPORTED_BEHAVIORS[i]))
      return SUPPORTED_BEHAVIORS[i]
  }
  return null
}

BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = animation_with_menu_page_init

function refresh_cache(a){
   Element.insert(a, {'bottom':" <abbr title='command sent'>1</abr>"});
   ajaxize_link(a,{response_container:a,update_mode:'append',asynchronous:false});
   var href = a.up('tr').down('.url_key').href.replace('/fresh','')
   send_request(href,{asynchronous:false});
   Element.insert(a, {'bottom':" <abbr title='updated'>3</abr>"});
   if(a.hasClassName('homepage')){
     send_request(window.location.protocol + "//" + window.location.host + "/",{asynchronous:false});
     Element.insert(a, {'bottom':" <abbr title='updated homepage'>4</abr>"});
   }
}


function refreash_all_cache(_a){
  $$('.publish_link.changed').each(function(a){
    var code = a.readAttribute('onclick')
    code = code.replace('return false;','')
    code = code.replace('this','a')
    eval(code)
  })
  send_request("sitemap.xml",{});
  send_request("/pages/ping_seo",{});
}

function force_refreash_all_cache(_a){
  $$('.publish_link').each(function(a){
    var code = a.readAttribute('onclick')
    code = code.replace('return false;','')
    code = code.replace('this','a')
    eval(code)
  })
  send_request("/sitemap.xml",{});
  send_request("/pages/ping_seo",{});
}

function ping_google(){
  var domain = document.domain.replace('www.','')
  var url = encodeURI("http://"+domain+'/sitemap.xml')
  url = 'http://www.google.com/webmasters/tools/ping?sitemap='+url
  send_request(url,{})
}

function ping_najdi_si(){
  var domain = document.domain.replace('www.','')
  var url = encodeURI("http://"+domain+'/sitemap.xml')
  url = 'http://www.najdi.si/indexingOnDemand.jsp?url='+url
  send_request(url,{})
}


document.observe("dom:loaded", function() {
  stdout('codemirror_setup.js')
  t1 = new Date();
  init_codemirror($(document.body))
  t2 = new Date();
  stdout('codemirror_setup.js '+((t2.getTime()-t1.getTime())+'ms'))
})

function init_codemirror(root){

  root.select('.textarea_css').each( function(textatera){

    id = 'css_editor_'+Math.round(Math.random()*100)+Math.round(Math.random()*100)+Math.round(Math.random()*100)
    textatera.writeAttribute('id',id)

    editor = CodeMirror.fromTextArea(id, {
      height: "350px",
      parserfile: "parsecss.js",
      path: "/javascripts/codemirror/js/",
      stylesheet: "/javascripts/codemirror/css/csscolors.css",
      onChange: function(){ replace_style(editor.getCode())}
    });
  })
}
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = init_codemirror

function replace_style(css){

  part_id = $F('edit_css_part_html_id')
  style = $(id+'_style')
  if(style){
    style.innerHTML = css
  }else{
    style = new Element('style', { "id": id+'_style'})
    style.innerHTML = css
    Element.insert($$('head')[0], { 'bottom': style});
  }
}

var DEFAULT_INFO_BOX_HEIGHT = 150

var E = 0



document.observe("dom:loaded", function() {
  stdout('info_box.js ')
  t1 = new Date();

  info_box_init($(document.body))

  t2 = new Date();
  stdout('info_box.js '+((t2.getTime()-t1.getTime())+'ms'))
});

function info_box_init(root){
  root.select('.info_box, .info_box *').each(function(info_box){

       info_box.observe('mouseover', function(e){

           var el = e.element()

           if(el.hasClassName('info_box')) {
             animate_info_box(el)
             deanimate_other_infoboxes(el) //when going on an info box all other infoboxes get down
           }else if(el.up('.ib_text') && el.up('.info_box')){
             el = el.up('.info_box')
             animate_info_box(el)
             deanimate_other_infoboxes(el) //when going on an info box all other infoboxes get down
           }
       });
    });
}

BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = info_box_init

function animate_info_box(el){

                var queue = Effect.Queues.get(el.id)

                var info_box = info_boxes[el.id].evalJSON(true).info_box

                var start_top = info_box.box_image_height

                var info_height = info_box.info_height ? info_box.info_height : info_box.info_image_height ? info_box.info_image_height : DEFAULT_INFO_BOX_HEIGHT
                var end_top = info_box.box_image_height - info_height
                if(el.down('.ib_info')){
                  new Effect.Morph(el.down('.ib_info'), {
                      style: 'top:'+end_top+'px', // CSS Properties
                      duration: 0.3, // Core Effect properties
                      queue: { position: 'end', scope: el.id,limit: 6 }
                  });
                }

}

function deanimate_other_infoboxes(el){

   $$('.info_box').each(function(info_box_down){
                    if(info_box_down.id != el.id){
                      var info_box = info_boxes[info_box_down.id].evalJSON(true).info_box
                      var start_top =  info_box.box_image_height

                      var queue = Effect.Queues.get(info_box_down.id)
                      if(queue)
                          queue.each(function(effect) { effect.cancel(); });

                      if(info_box_down.down('.ib_info')){
                        new Effect.Morph(info_box_down.down('.ib_info'), {
                          style: 'top:'+start_top+'px', // CSS Properties
                          duration: 0.3, // Core Effect properties
                          queue: { position: 'end', scope: info_box_down.id,limit: 6 }
                        });
                        }
                    }
                });

}
document.observe("dom:loaded", function() {
  stdout('left_right_page.js')
  t1 = new Date();
  left_right_page_init($(document.body))
  t2 = new Date();
  stdout('left_right_page.js '+((t2.getTime()-t1.getTime())+'ms'))
});

function left_right_page_init(root){
   var DEFAULT_DURATION = 0.5

   root.select('.left_right_page').each(function(container_page){

     var previous_link = container_page.down('.left')
     var next_link = container_page.down('.right')

     if(previous_link)
     previous_link.observe('click', function(e){
        e.stop()
        var link = e.element()
        var page = link.up('.page')
        freeze_height(link,page)
        freeze_height(page.down('.right'),page)
        left_right_page_transition(page,{'direction':'previous'})
        return false
     })

     if(next_link)
     next_link.observe('click', function(e){
        e.stop()
        var link = e.element()
        var page = link.up('.page')
        freeze_height(link,page)
        freeze_height(page.down('.left'),page)
        left_right_page_transition(page,{'direction':'next'})
        return false
     })




     if(!previous_link && !next_link){



       f = function(container_page_id){
         var container_page = $(container_page_id);
         left_right_page_transition(container_page,{'direction':'next'});
         new PeriodicalExecuter(function(pe) {
           left_right_page_transition(container_page,{'direction':'next'});
         }, 4.2 + 2*Math.random());

       }

       setTimeout("f(\""+container_page.id+"\")",Math.floor(Math.random()*2001));
     }
  });
}
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = left_right_page_init

function freeze_height(element,source){

      var elementStyle = element.readAttribute('style')

      if(elementStyle)
        if(elementStyle.indexOf('height') > -1 && elementStyle.indexOf('width') > -1)
            return

      h = source.down().getHeight()

      element.setStyle({
          height:h+'px'
       })
}

function left_right_page_transition(page,params){

        var direction = params.direction ? params.direction : null;
        var duration = params.duration ? params.duration : 0.5;
        var next = params.next //care next if passed as parameter is an index

        page.childElements().each(function(child){
          if (child.visible() && child.hasClassName('part') ) {//we found the visible part

            if(!next && next != 0){
              if(direction=='next'){
                next = child.next('.part') ? child.next('.part') : page.down('.part') //we'll display the next element or the first from the opposite side
              }if(direction=='previous'){
                next = child.previous('.part')//we'll display the previus element
                if(!next || 'undefined'==next){ // or the first from the opposite side

                  var parts = $$('#'+page.id+' > .part')
                  next = parts[parts.length - 1 ]
                }
              }
            } else {
              next = page.childElements().findAll(function(c){ return c.hasClassName('part') })[next]
            }
            if(next && 2 >= Effect.Queues.get('left_right'+page.id).size()){ //found an element to display  and no animation is going on
              updateHeight(page,next)
              child.fade({ duration: duration,queue: { position: 'end', scope: 'left_right'+page.id, limit: 4} })
              next.appear({ duration: duration ,queue: { position: 'end', scope: 'left_right'+page.id, limit: 4},
                  afterSetup:function(effect){
                    var child = effect.element
                    var i = 0
                    var page = child.up('.page')
                    var current = page.down('.current')
                    if(current)
                      page.childElements().each(function(part){
                        if(part.hasClassName('part') ){
                          i=i+1
                          if (part == child){
                            current.update(i)
                          }
                        }
                      })
                  }

              })
              throw $break;
            }
          }
        })
}

function updateHeight(container, child){

  var height = child.getDimensions().height;

   container.setStyle({
     height : height+'px'
   })
}
document.observe("dom:loaded", function() {
  stdout('left_right_slide_page.js')
  t1 = new Date();
  left_right_slide_page_init($(document.body))
  t2 = new Date();
  stdout('left_right_slide_page.js '+((t2.getTime()-t1.getTime())+'ms'))
});

function left_right_slide_page_init(root){
   var DEFAULT_DURATION = 0.5
   root.select('.left_right_slide_page').each(function(container_page){

     var previous_link = container_page.down('.left')
     var next_link = container_page.down('.right')

     if(previous_link)
     previous_link.observe('click', function(e){
        e.stop()
        var link = e.element()
        left_right_slide_page_transition(link.up('.page'),{'direction':'previous'})
        return false
     })

     if(next_link)
     next_link.observe('click', function(e){
        e.stop()
        var link = e.element()
        left_right_slide_page_transition(link.up('.page'),{'direction':'next'})
        return false
     })


     if(!previous_link && !next_link){

       f = function(container_page_id){
         var container_page = $(container_page_id);
         left_right_slide_page_transition(container_page,{'direction':'next'});
         new PeriodicalExecuter(function(pe) {
           left_right_slide_page_transition(container_page,{'direction':'next'});
         }, 4.2 + 2*Math.random());

       }

       setTimeout("f(\""+container_page.id+"\")",Math.floor(Math.random()*2001));
     }
  });
}
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = left_right_slide_page_init


function left_right_slide_page_transition(page,params){


        var slide_cont = page.down('.slide_cont')
        var direction = params.direction ? params.direction : null;
        var duration = params.duration ? params.duration : 0.5;
        var next = params.next
        var current = slide_cont.down('.visible')

        if(!next && next!=0){
          if(direction=='next'){
            next = current.next('.part')
            if(!next)
              next = slide_cont.down('.part')

          }else if(direction=='previous'){
            next = current.previous('.part')
            if(!next){
              var parts = slide_cont.childElements()
              next = parts[parts.length-1]
            }
          }
        }else{
          next = slide_cont.childElements().findAll(function(c){ return c.hasClassName('part') })[next]
        }
        current.removeClassName('visible')
        next.addClassName('visible')

        var offset = 0
        var done = false
        slide_cont.childElements().each(function(c){
          if(c!=next && !done){
            offset  += c.getWidth() + 10
          }else{
            done=true
            return
          }
        })


        new Effect.Morph(slide_cont.id, {
          style: {'margin-left':'-'+offset+'px'}, // CSS Properties
          duration: duration // Core Effect properties
        });
}
document.observe("dom:loaded", function() {


})

function getParts(part,level){
  var class_name = part.hasClassName('page') ? 'cont link_'+part.id : 'term link_'+part.id
  var div = new Element('div', { 'class': class_name +' level_'+level})

  i = function(part,css_property){

    var string = part.getStyle(css_property)
    var enota = string.substring(string.length-2)
    var vrednost = parseInt(string.substring(0,string.length-2))

    if(enota=='em'){
      vrednost = vrednost * 14;
    }

    stdout("#"+part.id+" "+css_property+": "+vrednost)

    return vrednost
  }

 var scale_divizor = 5

 padding_top =  i(part,'padding-top')/ scale_divizor
 padding_right = i(part,'padding-right') / scale_divizor
 padding_bottom = i(part,'padding-bottom')/ scale_divizor
 padding_left = i(part,'padding-left')/ scale_divizor



 border_top =  'border-top:'+padding_top+'px solid blue;'
 border_right = 'border-right:'+padding_right+'px solid blue;'
 border_bottom = 'border-bottom:'+padding_bottom+'px solid blue;'
 border_left = 'border-left:'+padding_left+'px solid blue;'

 border =  border_top+border_right+border_bottom+border_left

 div.setAttribute("style",border)
 div.setStyle({
    width : (part.getWidth() / 5)-padding_left-padding_right +'px'
 })
  if(part.hasClassName('part') && !part.hasClassName('page')){

      div.setStyle({
         height : (part.getHeight() / 5) +'px'
      })
   }

  part.childElements().each(function(e){
    if(e.hasClassName('part') && e.visible()){
      div.insert(getParts(e,level+1))
    }
  })

  return div

}


function load_editors(root){

  if(POWER < 0)
    return

  var pewer1 = {
    relative_urls : false,
    remove_script_host : true,
    document_base_url : "/",
    height : "180px",
    mode : "exact",
    theme : "advanced",
    body_class : "tiny_body_custom",
    content_css : "/stylesheets/compiled/screen.css, /dynamic/stylesheet.css",
    theme_advanced_styles : CUSTOM_STYLE_CLASES, //defined in /app/views/shared/custom_style.js.jaml mapping of css_properties model
    theme_advanced_buttons0:'',
    convert_fonts_to_spans : true,
    plugins : "safari,autoresize,advlink,fullscreen",
    theme_advanced_buttons1 : "fullscreen,code,pastetext,|,link,unlink,|,bold,italic,underline,strikethrough,forecolor,|,justifyleft,justifycenter,justifyright,justifyfull,|,bullist,numlist,",
    theme_advanced_buttons2 : "styleselect,formatselect,fontselect,fontsizeselect,|,undo,redo,|,cleanup,removeformat,charmap",
    theme_advanced_buttons3 : "",
    theme_advanced_toolbar_location : "external"
  }

  root.select('textarea.tiny_mce').each(function(textarea){
    stdout(textarea.id)
    if(POWER <= 1){
      new tinymce.Editor(textarea.id, pewer1).render();
    }else if(POWER > 1){
      new tinymce.Editor(textarea.id, pewer1).render();
    }
  })
}

document.observe("dom:loaded", function() {
  stdout('tiny_setup.js')
  t1 = new Date();
  load_editors($(document.body))
  t2 = new Date();
  stdout('tiny_setup.js '+((t2.getTime()-t1.getTime())+'ms'))
})

BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = load_editors



var BP_COLUMNS_NO = BP_COLUMNS_NO ? BP_COLUMNS_NO : 24;         //should be defined in /views/shared/js_constants.js.haml
var BP_HORIZONTAL_PADDING_NO = BP_HORIZONTAL_PADDING_NO ? BP_HORIZONTAL_PADDING_NO : 24;         //should be defined in /views/shared/js_constants.js.haml
var BP_HORIZONTAL_PADDING_HEIGHT = BP_HORIZONTAL_PADDING_HEIGHT ? BP_HORIZONTAL_PADDING_HEIGHT : 14;         //should be defined in /views/shared/js_constants.js.haml

var BP_PREPEND_CLASSES = [""]; //prepend-1 prepend-2 ...
var BP_COLUMN_CLASSES = [""];  //span-1 span-2 ...
var BP_APPEND_CLASSES = [""];  //append-1 append-2
var BP_UPPEND_CLASSES = [""];  //uppend-1 uppend-2
var BP_DOWNPEND_CLASSES = [""];  //downpend-1 downpend-2
var BP_COLUMN_WIDTH = BP_COLUMN_WIDTH ? BP_COLUMN_WIDTH : 40
var BP_COLUMN_MARGIN_WIDTH = BP_COLUMN_MARGIN_WIDTH ? BP_COLUMN_MARGIN_WIDTH : 10
var BP_COLUMN_WIDTHS = [0]    //
var BP_UPPEND_PADDINGS = [0]
var BP_DOWNPEND_PADDINGS = [0]

for(var i=1;i<=BP_COLUMNS_NO; i++){
  BP_PREPEND_CLASSES[BP_PREPEND_CLASSES.length] = "prepend-"+(i);
  BP_COLUMN_CLASSES[BP_COLUMN_CLASSES.length] = "span-"+(i);
  BP_APPEND_CLASSES[BP_APPEND_CLASSES.length] = "append-"+(i);
  BP_UPPEND_CLASSES[BP_UPPEND_CLASSES.length] = "uppend-"+(i);
  BP_DOWNPEND_CLASSES[BP_DOWNPEND_CLASSES.length] = "downpend-"+(i);
  BP_COLUMN_WIDTHS[BP_COLUMN_WIDTHS.length] = BP_COLUMN_WIDTH*(i-1) + BP_COLUMN_WIDTH - BP_COLUMN_MARGIN_WIDTH
  BP_UPPEND_PADDINGS[BP_UPPEND_PADDINGS.length] = BP_HORIZONTAL_PADDING_HEIGHT*i
  BP_DOWNPEND_PADDINGS[BP_DOWNPEND_PADDINGS.length] = BP_HORIZONTAL_PADDING_HEIGHT*i
}

document.observe("dom:loaded", function() {
  t1 = new Date();
  page_part_controls_init($(document.body))
  t2 = new Date();
  stdout('page_part_controls.js '+((t2.getTime()-t1.getTime())+'ms'))
});

function page_part_controls_init(root){
  root = root.down('form.part_form')
  if(!root)return;
  var position = root.down('.position_input')
  var prepend = root.down('.prepend_input')
  var column = root.down('.column_input')
  var append = root.down('.append_input')
  var uppend = root.down('.uppend_input')
  var downpend = root.down('.downpend_input')
  var last = root.down('.last_input')
  var page_part = null;

  if(last){
    page_part = last.up('.part');
    Element.observe(last,'click',function(e){
      if($F(last)==1)
        page_part.addClassName('last')
      else
        page_part.removeClassName('last')
    });
  }

  if(position && prepend && column && append && uppend && downpend && page_part){

    Element.observe(position,'keydown',function(e){
      var direction = adjustValue(e);
      move_focus(e)
      changePosition(direction,e)
    })
    Element.observe(prepend,'keydown',function(e){
      adjustValue(e);
      move_focus(e)
      setupClasses(e)
    })
    Element.observe(column,'keydown',function(e){
      adjustValue(e)
      move_focus(e)
      setupClasses(e)
    })
    Element.observe(append,'keydown',function(e){
      adjustValue(e)
      move_focus(e)
      setupClasses(e)
    })

    Element.observe(uppend,'keydown',function(e){
      adjustValue(e)
      move_focus(e)
      setupClasses(e)
    })

    Element.observe(downpend,'keydown',function(e){
      adjustValue(e)
      move_focus(e)
      setupClasses(e)
    })

    Element.observe(last,'keydown',function(e){
      move_focus(e)
      toggle_last(e)
      setupClasses(e)
    })

  }
}
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = page_part_controls_init

function toggle_last(last,e){
  var code;
  if (e.keyCode) code = e.keyCode;
  else if (e.which) code = e.which;
  if(code != Event.KEY_TAB)e.stop()
  if(code == Event.KEY_DOWN || code == Event.KEY_UP){
    last.up('.part').toggleClassName('last')
    if (last.checked){
      last.checked=false;
    }	else {
      last.checked=true;
    }
  }
}

function changePosition(direction,e){ //moves the part left or right in the dom
  var page_part = e.element().up('.part')
  if (direction=="dec"){
    var left_sibling = page_part.previous('.part')
    if(left_sibling){
      Element.insert(page_part, {
        'after': left_sibling
      });
      $$('.position_input')[0].focus()
    }else{
      stdout('no left sibling')
    }


  }else if(direction=="inc"){
    var right_sibling = page_part.next('.part')
    if(right_sibling){
      Element.insert(page_part, {
        'before': right_sibling
      });
      $$('.position_input')[0].focus()

    }else{
      stdout('no right sibling')
    }
  }
}

function move_focus(e){
  value_input = e.element()
  var code;
  if (e.keyCode) code = e.keyCode;
  else if (e.which) code = e.which;
  if(code != Event.KEY_TAB)e.stop()
  if(code == Event.KEY_RIGHT){
    var right_input = value_input.next('.pc')
    if(right_input)
      right_input.focus()

  }else if(code == Event.KEY_LEFT){
    var left_input = value_input.previous('.pc')
    if(left_input)
      left_input.focus()

  }

}

function adjustValue(e){
  var value_input = e.element()
  var direction = "std";
  var value = $F(value_input)
  var code;
  if (e.keyCode) code = e.keyCode;
  else if (e.which) code = e.which;
  if(code != Event.KEY_TAB)e.stop()

  var page_part = value_input.up('.part')

  if(isInteger(value)){
    if(value < 0){
      value=0;
    }else if(value > BP_COLUMNS_NO){
      value=BP_COLUMNS_NO;
    }else{
      if(code == Event.KEY_UP){ //
        if(!value_input.hasClassName("position_input") && value < BP_COLUMNS_NO){//if not editing position and still posoble to inc
          value++;
        }else if(page_part.next(".part")){ //editing position and still possoble to inc
          value++;
          direction = "inc";
        }
      }else if(code == Event.KEY_DOWN){
        if(!value_input.hasClassName("position_input") && value > 0){
          value--;
          direction = "dec";
        }else if(value > 1){
          value--;
          direction = "dec";
        }
      }
    }
  }else if(value >= 0 && value <= BP_COLUMNS_NO){
    value_input.setValue(value)
  }else{
    value = 0
  }
  value_input.setValue(value)
  return direction //inc std dec

}

function setupClasses(e){
  stdout('SETUP CLASSES')
  var part_form = e.element().up('.part_form')

  var prepend = $F(part_form.down('.prepend_input'))
  var content = $F(part_form.down('.column_input'))
  var append = $F(part_form.down('.append_input'))
  var uppend = $F(part_form.down('.uppend_input'))
  var downpend = $F(part_form.down('.downpend_input'))
  var page_part = part_form.up('.part');

  for(var i=1;i<=BP_COLUMNS_NO;i++){
    if(i != prepend)
      page_part.removeClassName(BP_PREPEND_CLASSES[i]);
    else
      page_part.addClassName(BP_PREPEND_CLASSES[i]);

    if(i != append)
      page_part.removeClassName(BP_APPEND_CLASSES[i]);
    else
      page_part.addClassName(BP_APPEND_CLASSES[i]);

    if(i != uppend)
      page_part.removeClassName(BP_UPPEND_CLASSES[i]);
    else
      page_part.addClassName(BP_UPPEND_CLASSES[i]);

    if(i != downpend)
      page_part.removeClassName(BP_DOWNPEND_CLASSES[i]);
    else
      page_part.addClassName(BP_DOWNPEND_CLASSES[i]);

    if(i != content){
      page_part.removeClassName(BP_COLUMN_CLASSES[i]);
    }else{
      page_part.addClassName(BP_COLUMN_CLASSES[i]);

      var mce_iframe = page_part.down('iframe') // $('content_part_attributes_html_tbl')
      var mce_layout = mce_iframe.up('.mceLayout')

      if(mce_iframe){
        height = mce_iframe.getStyle('height')
        width = (BP_COLUMN_WIDTHS[i])+'px'
        margin_right = page_part.hasClassName("last") ? '0px' : BP_COLUMN_MARGIN_WIDTH+'px';
        mce_iframe.setStyle({
          'width':width,
          'margin-right':margin_right
        })
        mce_layout.setStyle({
          'width':width,
          'margin-right':margin_right
        })
      }

    }
  }
}

function isInteger (s)
{
  var i;

  if (isEmpty(s))
    if (isInteger.arguments.length == 1) return 0;
    else return (isInteger.arguments[1] == true);

  for (i = 0; i < s.length; i++)
  {
    var c = s.charAt(i);

    if (!isDigit(c)) return false;
  }

  return true;
}

function isEmpty(s)
{
  return ((s == null) || (s.length == 0))
}

function isDigit (c)
{
  return ((c >= "0") && (c <= "9"))
}

function pecel_link_mouseOver(a){
  var part = a.up('.part')
  var parent_part= part.up('.part')

  if(parent_part) {
    parent_part.setStyle({
      'background':'url(/images/grid.png)'
    })
  }


  if(part) {
    part.setStyle({
      'background':'url(/images/grid_red.png)'
    })
    part.select('.part').each(function(p){
      p.setStyle({
        'background':'url(/images/grid_red.png)'
      })
    })
  }



}

function pecel_link_mouseOut(a){
  var part = a.up('.part')
  var parent_part= part.up('.part')

  if(parent_part) {
    parent_part.setStyle({
      'background':''
    })
  }

  if(part) {
    part.setStyle({
      'background':''
    })
    part.select('.part').each(function(p){
      p.setStyle({
        'background':''
      })
    })
  }
}


document.observe("dom:loaded", function() {
  stdout('slide_down_page.js')
  t1 = new Date();

  slide_down_page_init($(document.body))

  t2 = new Date();
  stdout('slide_down_page.js '+((t2.getTime()-t1.getTime()))+'ms')

});

function slide_down_page_init(root){
  root.select('.slide_down_page').each(function(page){

       var sliding_element= page.down('.slide_down_wrapper')
       var down_link= page.down('.do_slide_down')
       var up_link= page.down('.do_slide_up')
         var h = 0;
         sliding_element.childElements().each(function(child){
           h += child.getHeight();
         })

         sliding_element.setStyle({
            display:'none',
            height: h+'px'
         })

       down_link.observe('click', function(e){
          this.disabled = true;

          e.stop()
          var down_link = e.element()
          var page = down_link.up('.page')
          var up_link= page.down('.do_slide_up')

          var sliding_element = page.down('.slide_down_wrapper')

          down_link.hide();
          up_link.show();

          Effect.SlideDown(sliding_element,{
            duration: 0.5,
            queue: { position: 'end', scope: page.id+'slide_up_down',limit: 2}
            });
       })

       up_link.observe('click', function(e){
          e.stop()
          var up_link = e.element()
          var page = up_link.up('.page')
          var down_link= page.down('.do_slide_down')
          var sliding_element = page.down('.slide_down_wrapper')
          var player = sliding_element.down('.mp3player')

          up_link.hide();
          down_link.show();

          Effect.SlideUp(sliding_element,{
            duration: 0.5,
            queue: { position: 'end', scope: page.id+'slide_up_down',limit: 2}
            });

          return false;
       })

  });
}
BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = slide_down_page_init
document.observe("dom:loaded", function() {
  stdout('song_up_page.js ')
  t1 = new Date();

  song_up_page_init($(document.body))

  t2 = new Date();
  stdout('song_up_page.js '+((t2.getTime()-t1.getTime()))+'ms')

});
function song_up_page_init(root){
    root.select('.song_up_page').each(function(page){

       var sliding_element= page.down('.slide_down_wrapper')
       var play_link= page.down('.play')
       var pause_link= page.down('.pause')

         sliding_element.setStyle({
            display:'none',
            height: 28+'px'
         })

       play_link.observe('click', function(e){
          this.disabled = true;

          e.stop()
          var play_link = e.element()
          var page = play_link.up('.page')
          var pause_link= page.down('.pause')

          var sliding_element = page.down('.slide_down_wrapper')

          play_link.hide();
          pause_link.show();

          Effect.SlideDown(sliding_element,{
            duration: 0.5,
            queue: { position: 'end', scope: page.id+'slide_up_down',limit: 2},
            afterFinish: function(effect){
              effect.element.down().show()
            }

            });
       })

       pause_link.observe('click', function(e){
          e.stop()
          var pause_link = e.element()
          var page = pause_link.up('.page')
          var play_link= page.down('.play')
          var sliding_element = page.down('.slide_down_wrapper')
          var player = sliding_element.down('.mp3player')

          pause_link.hide();
          play_link.show();

          Effect.SlideUp(sliding_element,{
            duration: 0.5,
            queue: { position: 'end', scope: page.id+'slide_up_down',limit: 2},
            beforeStart: function(effect){
              effect.element.down().hide()
            }
            });

          return false;
       })

  });
}
 BEHAVIOR_APPENDERS[BEHAVIOR_APPENDERS.length] = song_up_page_init
document.observe("dom:loaded", function() {
  stdout('window_page.js')
  t1 = new Date();
  simple_window_page_init($(document.body))

  t2 = new Date();
  stdout('window_page.js '+((t2.getTime()-t1.getTime()))+'ms')

});

function simple_window_page_init(root){
  var windows = []
  var link_selector = ''
  var i = 0
  root.select('.simple_window_page').each(function(div){
    windows[windows.length] = div.identify()
  })

  for(i = 0; i<windows.length;i++ ){
    link_selector = "a[href=#"+windows[i]+"]"
    $$(link_selector).each(function(link_to_window){
      var centered = new Control.Window(link_to_window,{
        className: 'simple_window',
        closeOnClick: true
      });
    })
  }

  windows = []
  root.select('.lightbox_window_page').each(function(div){
    windows[windows.length] = div.identify()
  })

  for(i = 0; i<windows.length;i++ ){
    link_selector = "a[href=#"+windows[i]+"]"
    $$(link_selector).each(function(link_to_window){
      var modal = new Control.Modal(link_to_window,{
        overlayOpacity: 0.75,
        className: 'modal',
        fade: true
      });


    })
  }


}