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From dej...@apache.org
Subject svn commit: r935623 [4/5] - in /activemq/trunk/activemq-web-demo/src/main/webapp: ./ js/
Date Mon, 19 Apr 2010 15:27:16 GMT
Added: activemq/trunk/activemq-web-demo/src/main/webapp/js/prototype.js
URL: http://svn.apache.org/viewvc/activemq/trunk/activemq-web-demo/src/main/webapp/js/prototype.js?rev=935623&view=auto
==============================================================================
--- activemq/trunk/activemq-web-demo/src/main/webapp/js/prototype.js (added)
+++ activemq/trunk/activemq-web-demo/src/main/webapp/js/prototype.js Mon Apr 19 15:27:15 2010
@@ -0,0 +1,4874 @@
+/*  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;
+

[... 1792 lines stripped ...]


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