From 268267c9e45351322ec61800f5b9900d83f40a24 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <code@mail.matthias.benkard.de>
Date: Sun, 29 Nov 2009 00:27:23 +0100
Subject: Beginning of a rewrite in Clojure for use on the Google App Engine.

---
 js/prototype.js | 4874 -------------------------------------------------------
 1 file changed, 4874 deletions(-)
 delete mode 100644 js/prototype.js

(limited to 'js/prototype.js')

diff --git a/js/prototype.js b/js/prototype.js
deleted file mode 100644
index 845ab7f..0000000
--- a/js/prototype.js
+++ /dev/null
@@ -1,4874 +0,0 @@
-/*  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);
-
-/*--------------------------------------------------------------------------*/
\ No newline at end of file
-- 
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