/*  Prototype JavaScript framework, version 1.5.1































 *  (c) 2005-2007 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: '1.5.1',































































  Browser: {































    IE:     !!(window.attachEvent && !window.opera),































    Opera:  !!window.opera,































    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,































    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1































  },































































  BrowserFeatures: {































    XPath: !!document.evaluate,































    ElementExtensions: !!window.HTMLElement,































    SpecificElementExtensions:































      (document.createElement('div').__proto__ !==































       document.createElement('form').__proto__)































  },































































  ScriptFragment: '<script[^>]*>([\u0001-\uFFFF]*?)</script>',































  JSONFilter: /^\/\*-secure-\s*(.*)\s*\*\/\s*$/,































































  emptyFunction: function() { },































  K: function(x) { return x }































}































































var Class = {































  create: function() {































    return function() {































      this.initialize.apply(this, arguments);































    }































  }































}































































var Abstract = new Object();































































Object.extend = function(destination, source) {































  for (var property in source) {































    destination[property] = source[property];































  }































  return destination;































}































































Object.extend(Object, {































  inspect: function(object) {































    try {































      if (object === undefined) return 'undefined';































      if (object === null) return 'null';































      return object.inspect ? object.inspect() : object.toString();































    } catch (e) {































      if (e instanceof RangeError) return '...';































      throw e;































    }































  },































































  toJSON: function(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 (object.ownerDocument === document) return;































    var results = [];































    for (var property in object) {































      var value = Object.toJSON(object[property]);































      if (value !== undefined)































        results.push(property.toJSON() + ': ' + value);































    }































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































  },































































  keys: function(object) {































    var keys = [];































    for (var property in object)































      keys.push(property);































    return keys;































  },































































  values: function(object) {































    var values = [];































    for (var property in object)































      values.push(object[property]);































    return values;































  },































































  clone: function(object) {































    return Object.extend({}, object);































  }































});































































Function.prototype.bind = function() {































  var __method = this, args = $A(arguments), object = args.shift();































  return function() {































    return __method.apply(object, args.concat($A(arguments)));































  }































}































































Function.prototype.bindAsEventListener = function(object) {































  var __method = this, args = $A(arguments), object = args.shift();































  return function(event) {































    return __method.apply(object, [event || window.event].concat(args));































  }































}































































Object.extend(Number.prototype, {































  toColorPart: function() {































    return this.toPaddedString(2, 16);































  },































































  succ: function() {































    return this + 1;































  },































































  times: function(iterator) {































    $R(0, this, true).each(iterator);































    return this;































  },































































  toPaddedString: function(length, radix) {































    var string = this.toString(radix || 10);































    return '0'.times(length - string.length) + string;































  },































































  toJSON: function() {































    return isFinite(this) ? this.toString() : 'null';































  }































});































































Date.prototype.toJSON = function() {































  return '"' + this.getFullYear() + '-' +































    (this.getMonth() + 1).toPaddedString(2) + '-' +































    this.getDate().toPaddedString(2) + 'T' +































    this.getHours().toPaddedString(2) + ':' +































    this.getMinutes().toPaddedString(2) + ':' +































    this.getSeconds().toPaddedString(2) + '"';































};































































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;































  }































}































































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































































var PeriodicalExecuter = Class.create();































PeriodicalExecuter.prototype = {































  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);































  },































































  stop: function() {































    if (!this.timer) return;































    clearInterval(this.timer);































    this.timer = null;































  },































































  onTimerEvent: function() {































    if (!this.currentlyExecuting) {































      try {































        this.currentlyExecuting = true;































        this.callback(this);































      } finally {































        this.currentlyExecuting = false;































      }































    }































  }































}































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, {































  gsub: function(pattern, replacement) {































    var result = '', source = this, match;































    replacement = arguments.callee.prepareReplacement(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;































  },































































  sub: function(pattern, replacement, count) {































    replacement = this.gsub.prepareReplacement(replacement);































    count = count === undefined ? 1 : count;































































    return this.gsub(pattern, function(match) {































      if (--count < 0) return match[0];































      return replacement(match);































    });































  },































































  scan: function(pattern, iterator) {































    this.gsub(pattern, iterator);































    return this;































  },































































  truncate: function(length, truncation) {































    length = length || 30;































    truncation = truncation === undefined ? '...' : truncation;































    return this.length > length ?































      this.slice(0, length - truncation.length) + truncation : this;































  },































































  strip: function() {































    return this.replace(/^\s+/, '').replace(/\s+$/, '');































  },































































  stripTags: function() {































    return this.replace(/<\/?[^>]+>/gi, '');































  },































































  stripScripts: function() {































    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');































  },































































  extractScripts: function() {































    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];































    });































  },































































  evalScripts: function() {































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































  },































































  escapeHTML: function() {































    var self = arguments.callee;































    self.text.data = this;































    return self.div.innerHTML;































  },































































  unescapeHTML: function() {































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































    div.innerHTML = this.stripTags();































    return div.childNodes[0] ? (div.childNodes.length > 1 ?































      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :































      div.childNodes[0].nodeValue) : '';































  },































































  toQueryParams: function(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 (hash[key].constructor != Array) hash[key] = [hash[key]];































          hash[key].push(value);































        }































        else hash[key] = value;































      }































      return hash;































    });































  },































































  toArray: function() {































    return this.split('');































  },































































  succ: function() {































    return this.slice(0, this.length - 1) +































      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);































  },































































  times: function(count) {































    var result = '';































    for (var i = 0; i < count; i++) result += this;































    return result;































  },































































  camelize: function() {































    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;































  },































































  capitalize: function() {































    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();































  },































































  underscore: function() {































    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();































  },































































  dasherize: function() {































    return this.gsub(/_/,'-');































  },































































  inspect: function(useDoubleQuotes) {































    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {































      var character = String.specialChar[match[0]];































      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);































    });































    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';































    return "'" + escapedString.replace(/'/g, '\\\'') + "'";































  },































































  toJSON: function() {































    return this.inspect(true);































  },































































  unfilterJSON: function(filter) {































    return this.sub(filter || Prototype.JSONFilter, '#{1}');































  },































































  evalJSON: function(sanitize) {































    var json = this.unfilterJSON();































    try {































      if (!sanitize || (/^("(\\.|[^"\\\n\r])*?"|[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t])+?$/.test(json)))































        return eval('(' + json + ')');































    } catch (e) { }































    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());































  },































































  include: function(pattern) {































    return this.indexOf(pattern) > -1;































  },































































  startsWith: function(pattern) {































    return this.indexOf(pattern) === 0;































  },































































  endsWith: function(pattern) {































    var d = this.length - pattern.length;































    return d >= 0 && this.lastIndexOf(pattern) === d;































  },































































  empty: function() {































    return this == '';































  },































































  blank: function() {































    return /^\s*$/.test(this);































  }































});































































if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {































  escapeHTML: function() {































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































  },































  unescapeHTML: function() {































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































  }































});































































String.prototype.gsub.prepareReplacement = function(replacement) {































  if (typeof replacement == 'function') return replacement;































  var template = new Template(replacement);































  return function(match) { return template.evaluate(match) };































}































































String.prototype.parseQuery = String.prototype.toQueryParams;































































Object.extend(String.prototype.escapeHTML, {































  div:  document.createElement('div'),































  text: document.createTextNode('')































});































































with (String.prototype.escapeHTML) div.appendChild(text);































































var Template = Class.create();































Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;































Template.prototype = {































  initialize: function(template, pattern) {































    this.template = template.toString();































    this.pattern  = pattern || Template.Pattern;































  },































































  evaluate: function(object) {































    return this.template.gsub(this.pattern, function(match) {































      var before = match[1];































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































      return before + String.interpret(object[match[3]]);































    });































  }































}































































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































































var Enumerable = {































  each: function(iterator) {































    var index = 0;































    try {































      this._each(function(value) {































        iterator(value, index++);































      });































    } catch (e) {































      if (e != $break) throw e;































    }































    return this;































  },































































  eachSlice: function(number, iterator) {































    var index = -number, slices = [], array = this.toArray();































    while ((index += number) < array.length)































      slices.push(array.slice(index, index+number));































    return slices.map(iterator);































  },































































  all: function(iterator) {































    var result = true;































    this.each(function(value, index) {































      result = result && !!(iterator || Prototype.K)(value, index);































      if (!result) throw $break;































    });































    return result;































  },































































  any: function(iterator) {































    var result = false;































    this.each(function(value, index) {































      if (result = !!(iterator || Prototype.K)(value, index))































        throw $break;































    });































    return result;































  },































































  collect: function(iterator) {































    var results = [];































    this.each(function(value, index) {































      results.push((iterator || Prototype.K)(value, index));































    });































    return results;































  },































































  detect: function(iterator) {































    var result;































    this.each(function(value, index) {































      if (iterator(value, index)) {































        result = value;































        throw $break;































      }































    });































    return result;































  },































































  findAll: function(iterator) {































    var results = [];































    this.each(function(value, index) {































      if (iterator(value, index))































        results.push(value);































    });































    return results;































  },































































  grep: function(pattern, iterator) {































    var results = [];































    this.each(function(value, index) {































      var stringValue = value.toString();































      if (stringValue.match(pattern))































        results.push((iterator || Prototype.K)(value, index));































    })































    return results;































  },































































  include: function(object) {































    var found = false;































    this.each(function(value) {































      if (value == object) {































        found = true;































        throw $break;































      }































    });































    return found;































  },































































  inGroupsOf: function(number, fillWith) {































    fillWith = fillWith === undefined ? null : fillWith;































    return this.eachSlice(number, function(slice) {































      while(slice.length < number) slice.push(fillWith);































      return slice;































    });































  },































































  inject: function(memo, iterator) {































    this.each(function(value, index) {































      memo = iterator(memo, value, index);































    });































    return memo;































  },































































  invoke: function(method) {































    var args = $A(arguments).slice(1);































    return this.map(function(value) {































      return value[method].apply(value, args);































    });































  },































































  max: function(iterator) {































    var result;































    this.each(function(value, index) {































      value = (iterator || Prototype.K)(value, index);































      if (result == undefined || value >= result)































        result = value;































    });































    return result;































  },































































  min: function(iterator) {































    var result;































    this.each(function(value, index) {































      value = (iterator || Prototype.K)(value, index);































      if (result == undefined || value < result)































        result = value;































    });































    return result;































  },































































  partition: function(iterator) {































    var trues = [], falses = [];































    this.each(function(value, index) {































      ((iterator || Prototype.K)(value, index) ?































        trues : falses).push(value);































    });































    return [trues, falses];































  },































































  pluck: function(property) {































    var results = [];































    this.each(function(value, index) {































      results.push(value[property]);































    });































    return results;































  },































































  reject: function(iterator) {































    var results = [];































    this.each(function(value, index) {































      if (!iterator(value, index))































        results.push(value);































    });































    return results;































  },































































  sortBy: function(iterator) {































    return this.map(function(value, index) {































      return {value: value, criteria: iterator(value, index)};































    }).sort(function(left, right) {































      var a = left.criteria, b = right.criteria;































      return a < b ? -1 : a > b ? 1 : 0;































    }).pluck('value');































  },































































  toArray: function() {































    return this.map();































  },































































  zip: function() {































    var iterator = Prototype.K, args = $A(arguments);































    if (typeof args.last() == 'function')































      iterator = args.pop();































































    var collections = [this].concat(args).map($A);































    return this.map(function(value, index) {































      return iterator(collections.pluck(index));































    });































  },































































  size: function() {































    return this.toArray().length;































  },































































  inspect: function() {































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































  }































}































































Object.extend(Enumerable, {































  map:     Enumerable.collect,































  find:    Enumerable.detect,































  select:  Enumerable.findAll,































  member:  Enumerable.include,































  entries: Enumerable.toArray































});































var $A = Array.from = function(iterable) {































  if (!iterable) return [];































  if (iterable.toArray) {































    return iterable.toArray();































  } else {































    var results = [];































    for (var i = 0, length = iterable.length; i < length; i++)































      results.push(iterable[i]);































    return results;































  }































}































































if (Prototype.Browser.WebKit) {































  $A = Array.from = function(iterable) {































    if (!iterable) return [];































    if (!(typeof iterable == 'function' && iterable == '[object NodeList]') &&































      iterable.toArray) {































      return iterable.toArray();































    } else {































      var results = [];































      for (var i = 0, length = iterable.length; i < length; i++)































        results.push(iterable[i]);































      return results;































    }































  }































}































































Object.extend(Array.prototype, Enumerable);































































if (!Array.prototype._reverse)































  Array.prototype._reverse = Array.prototype.reverse;































































Object.extend(Array.prototype, {































  _each: function(iterator) {































    for (var i = 0, length = this.length; i < length; i++)































      iterator(this[i]);































  },































































  clear: function() {































    this.length = 0;































    return this;































  },































































  first: function() {































    return this[0];































  },































































  last: function() {































    return this[this.length - 1];































  },































































  compact: function() {































    return this.select(function(value) {































      return value != null;































    });































  },































































  flatten: function() {































    return this.inject([], function(array, value) {































      return array.concat(value && value.constructor == Array ?































        value.flatten() : [value]);































    });































  },

































































  without: function() {































    var values = $A(arguments);































    return this.select(function(value) {































      return !values.include(value);































    });































  },































































  indexOf: function(object) {































    for (var i = 0, length = this.length; i < length; i++)































      if (this[i] == object) return i;































    return -1;































  },































































  reverse: function(inline) {































    return (inline !== false ? this : this.toArray())._reverse();































  },































































  reduce: function() {































    return this.length > 1 ? this : this[0];































  },































































  uniq: function(sorted) {































    return this.inject([], function(array, value, index) {































      if (0 == index || (sorted ? array.last() != value : !array.include(value)))































        array.push(value);































      return array;































    });































  },































































  clone: function() {































    return [].concat(this);































  },































































  size: function() {































    return this.length;































  },































































  inspect: function() {































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































  },































































  toJSON: function() {































    var results = [];































    this.each(function(object) {































      var value = Object.toJSON(object);































      if (value !== undefined) results.push(value);































    });































    return '[' + results.join(', ') + ']';































  }































});































































Array.prototype.toArray = Array.prototype.clone;































































function $w(string) {































  string = string.strip();































  return string ? string.split(/\s+/) : [];































}































































if (Prototype.Browser.Opera){































  Array.prototype.concat = function() {































    var array = [];































    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);































    for (var i = 0, length = arguments.length; i < length; i++) {































      if (arguments[i].constructor == Array) {































        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)































          array.push(arguments[i][j]);































      } else {































        array.push(arguments[i]);































      }































    }































    return array;































  }































}































var Hash = function(object) {































  if (object instanceof Hash) this.merge(object);































  else Object.extend(this, object || {});































};































































Object.extend(Hash, {































  toQueryString: function(obj) {































    var parts = [];































    parts.add = arguments.callee.addPair;































































    this.prototype._each.call(obj, function(pair) {































      if (!pair.key) return;































      var value = pair.value;































































      if (value && typeof value == 'object') {































        if (value.constructor == Array) value.each(function(value) {































          parts.add(pair.key, value);































        });































        return;































      }































      parts.add(pair.key, value);































    });































































    return parts.join('&');































  },































































  toJSON: function(object) {































    var results = [];































    this.prototype._each.call(object, function(pair) {































      var value = Object.toJSON(pair.value);































      if (value !== undefined) results.push(pair.key.toJSON() + ': ' + value);































    });































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































  }































});































































Hash.toQueryString.addPair = function(key, value, prefix) {































  key = encodeURIComponent(key);































  if (value === undefined) this.push(key);































  else this.push(key + '=' + (value == null ? '' : encodeURIComponent(value)));































}































































Object.extend(Hash.prototype, Enumerable);































Object.extend(Hash.prototype, {































  _each: function(iterator) {































    for (var key in this) {































      var value = this[key];































      if (value && value == Hash.prototype[key]) continue;































































      var pair = [key, value];































      pair.key = key;































      pair.value = value;































      iterator(pair);































    }































  },































































  keys: function() {































    return this.pluck('key');































  },































































  values: function() {































    return this.pluck('value');































  },































































  merge: function(hash) {































    return $H(hash).inject(this, function(mergedHash, pair) {































      mergedHash[pair.key] = pair.value;































      return mergedHash;































    });































  },































































  remove: function() {































    var result;































    for(var i = 0, length = arguments.length; i < length; i++) {































      var value = this[arguments[i]];































      if (value !== undefined){































        if (result === undefined) result = value;































        else {































          if (result.constructor != Array) result = [result];































          result.push(value)































        }































      }































      delete this[arguments[i]];































    }































    return result;































  },































































  toQueryString: function() {































    return Hash.toQueryString(this);































  },































































  inspect: function() {































    return '#<Hash:{' + this.map(function(pair) {































      return pair.map(Object.inspect).join(': ');































    }).join(', ') + '}>';































  },































































  toJSON: function() {































    return Hash.toJSON(this);































  }































});































































function $H(object) {































  if (object instanceof Hash) return object;































  return new Hash(object);































};































































// Safari iterates over shadowed properties































if (function() {































  var i = 0, Test = function(value) { this.key = value };































  Test.prototype.key = 'foo';































  for (var property in new Test('bar')) i++;































  return i > 1;































}()) Hash.prototype._each = function(iterator) {































  var cache = [];































  for (var key in this) {































    var value = this[key];































    if ((value && value == Hash.prototype[key]) || cache.include(key)) continue;































    cache.push(key);































    var pair = [key, value];































    pair.key = key;































    pair.value = value;































    iterator(pair);































  }































};































ObjectRange = Class.create();































Object.extend(ObjectRange.prototype, Enumerable);































Object.extend(ObjectRange.prototype, {































  initialize: function(start, end, exclusive) {































    this.start = start;































    this.end = end;































    this.exclusive = exclusive;































  },































































  _each: function(iterator) {































    var value = this.start;































    while (this.include(value)) {































      iterator(value);































      value = value.succ();































    }































  },































































  include: function(value) {































    if (value < this.start)































      return false;































    if (this.exclusive)































      return value < this.end;































    return value <= this.end;































  }































});































































var $R = function(start, end, exclusive) {































  return new ObjectRange(start, end, exclusive);































}































































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 (typeof responder[callback] == 'function') {































        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 = function() {};































Ajax.Base.prototype = {































  setOptions: function(options) {































    this.options = {































      method:       'post',































      asynchronous: true,































      contentType:  'application/x-www-form-urlencoded',































      encoding:     'UTF-8',































      parameters:   ''































    }































    Object.extend(this.options, options || {});































































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































    if (typeof this.options.parameters == 'string')































      this.options.parameters = this.options.parameters.toQueryParams();































  }































}































































Ajax.Request = Class.create();































Ajax.Request.Events =































  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];































































Ajax.Request.prototype = Object.extend(new Ajax.Base(), {































  _complete: false,































































  initialize: function(url, options) {































    this.transport = Ajax.getTransport();































    this.setOptions(options);































    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)) {































      // simulate other verbs over post































      params['_method'] = this.method;































      this.method = 'post';































    }































































    this.parameters = params;































































    if (params = Hash.toQueryString(params)) {































      // when GET, append parameters to URL































      if (this.method == 'get')































        this.url += (this.url.include('?') ? '&' : '?') + params;































      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))































        params += '&_=';































    }































































    try {































      if (this.options.onCreate) this.options.onCreate(this.transport);































      Ajax.Responders.dispatch('onCreate', this, this.transport);































































      this.transport.open(this.method.toUpperCase(), this.url,































        this.options.asynchronous);































































      if (this.options.asynchronous)































        setTimeout(function() { this.respondToReadyState(1) }.bind(this), 10);































































      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';































    }































































    // user-defined headers































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































      var extras = this.options.requestHeaders;































































      if (typeof extras.push == 'function')































        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() {































    return !this.transport.status































        || (this.transport.status >= 200 && this.transport.status < 300);































  },































































  respondToReadyState: function(readyState) {































    var state = Ajax.Request.Events[readyState];































    var transport = this.transport, json = this.evalJSON();































































    if (state == 'Complete') {































      try {































        this._complete = true;































        (this.options['on' + this.transport.status]































         || this.options['on' + (this.success() ? 'Success' : 'Failure')]































         || Prototype.emptyFunction)(transport, json);































      } catch (e) {

































        this.dispatchException(e);































      }































































      var contentType = this.getHeader('Content-type');































      if (contentType && contentType.strip().































        match(/^(text|application)\/(x-)?(java|ecma)script(;.*)?$/i))































          this.evalResponse();































    }































































    try {































      (this.options['on' + state] || Prototype.emptyFunction)(transport, json);































      Ajax.Responders.dispatch('on' + state, this, transport, json);































    } catch (e) {































      this.dispatchException(e);































    }































































    if (state == 'Complete') {































      // avoid memory leak in MSIE: clean up































      this.transport.onreadystatechange = Prototype.emptyFunction;































    }































  },































































  getHeader: function(name) {































    try {































      return this.transport.getResponseHeader(name);































    } catch (e) { return null }































  },































































  evalJSON: function() {































    try {































      var json = this.getHeader('X-JSON');































      return json ? json.evalJSON() : 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.Updater = Class.create();































































Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {































  initialize: function(container, url, options) {































    this.container = {































      success: (container.success || container),































      failure: (container.failure || (container.success ? null : container))































    }































































    this.transport = Ajax.getTransport();































    this.setOptions(options);































































    var onComplete = this.options.onComplete || Prototype.emptyFunction;































    this.options.onComplete = (function(transport, param) {































      this.updateContent();































      onComplete(transport, param);































    }).bind(this);































































    this.request(url);































  },































































  updateContent: function() {































    var receiver = this.container[this.success() ? 'success' : 'failure'];































    var response = this.transport.responseText;































































    if (!this.options.evalScripts) response = response.stripScripts();































































    if (receiver = $(receiver)) {































      if (this.options.insertion)































        new this.options.insertion(receiver, response);































      else































        receiver.update(response);































    }































































    if (this.success()) {































      if (this.onComplete)































        setTimeout(this.onComplete.bind(this), 10);































    }































  }































});































































Ajax.PeriodicalUpdater = Class.create();































Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {































  initialize: function(container, url, options) {































    this.setOptions(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(request) {































    if (this.options.decay) {































      this.decay = (request.responseText == this.lastText ?































        this.decay * this.options.decay : 1);































































      this.lastText = request.responseText;































    }































    this.timer = setTimeout(this.onTimerEvent.bind(this),































      this.decay * this.frequency * 1000);































  },































































  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 (typeof element == 'string')































    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(query.snapshotItem(i));































    return results;































  };































































  document.getElementsByClassName = function(className, parentElement) {































    var q = ".//*[contains(concat(' ', @class, ' '), ' " + className + " ')]";































    return document._getElementsByXPath(q, parentElement);































  }































































} else document.getElementsByClassName = function(className, parentElement) {































  var children = ($(parentElement) || document.body).getElementsByTagName('*');































  var elements = [], child;































  for (var i = 0, length = children.length; i < length; i++) {































    child = children[i];































    if (Element.hasClassName(child, className))































      elements.push(Element.extend(child));































  }































  return elements;































};































































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































































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































































Element.extend = function(element) {































  var F = Prototype.BrowserFeatures;































  if (!element || !element.tagName || element.nodeType == 3 ||































   element._extended || F.SpecificElementExtensions || element == window)































    return element;































































  var methods = {}, tagName = element.tagName, cache = Element.extend.cache,































   T = Element.Methods.ByTag;































































  // extend methods for all tags (Safari doesn't need this)































  if (!F.ElementExtensions) {































    Object.extend(methods, Element.Methods),































    Object.extend(methods, Element.Methods.Simulated);































  }































































  // extend methods for specific tags































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































































  for (var property in methods) {































    var value = methods[property];































    if (typeof value == 'function' && !(property in element))































      element[property] = cache.findOrStore(value);































  }































































  element._extended = Prototype.emptyFunction;































  return element;































};































































Element.extend.cache = {































  findOrStore: function(value) {































    return this[value] = this[value] || function() {































      return value.apply(null, [this].concat($A(arguments)));































    }































  }































};































































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).style.display = 'none';































    return element;































  },































































  show: function(element) {































    $(element).style.display = '';































    return element;































  },































































  remove: function(element) {































    element = $(element);































    element.parentNode.removeChild(element);































    return element;































  },































































  update: function(element, html) {































    html = typeof html == 'undefined' ? '' : html.toString();































    $(element).innerHTML = html.stripScripts();































    setTimeout(function() {html.evalScripts()}, 10);































    return element;































  },































































  replace: function(element, html) {































    element = $(element);































    html = typeof html == 'undefined' ? '' : html.toString();































    if (element.outerHTML) {































      element.outerHTML = html.stripScripts();































    } else {































      var range = element.ownerDocument.createRange();































      range.selectNodeContents(element);































      element.parentNode.replaceChild(































        range.createContextualFragment(html.stripScripts()), element);































    }































    setTimeout(function() {html.evalScripts()}, 10);































    return element;































  },































































  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('parentNode');































  },































































  descendants: function(element) {































    return $A($(element).getElementsByTagName('*')).each(Element.extend);































  },































































  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('previousSibling');































  },































































  nextSiblings: function(element) {































    return $(element).recursivelyCollect('nextSibling');































  },































































  siblings: function(element) {































    element = $(element);































    return element.previousSiblings().reverse().concat(element.nextSiblings());































  },































































  match: function(element, selector) {































    if (typeof selector == 'string')































      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();































    return expression ? Selector.findElement(ancestors, expression, index) :































      ancestors[index || 0];































  },































































  down: function(element, expression, index) {































    element = $(element);































    if (arguments.length == 1) return element.firstDescendant();































    var descendants = element.descendants();































    return expression ? Selector.findElement(descendants, expression, index) :































      descendants[index || 0];































  },































































  previous: function(element, expression, index) {































    element = $(element);































    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));































    var previousSiblings = element.previousSiblings();































    return expression ? Selector.findElement(previousSiblings, expression, index) :































      previousSiblings[index || 0];































  },































































  next: function(element, expression, index) {































    element = $(element);































    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));































    var nextSiblings = element.nextSiblings();































    return expression ? Selector.findElement(nextSiblings, expression, index) :































      nextSiblings[index || 0];































  },































































  getElementsBySelector: function() {































    var args = $A(arguments), element = $(args.shift());































    return Selector.findChildElements(element, args);































  },































































  getElementsByClassName: function(element, className) {































    return document.getElementsByClassName(className, element);































  },































































  readAttribute: function(element, name) {































    element = $(element);































    if (Prototype.Browser.IE) {































      if (!element.attributes) return null;































      var t = Element._attributeTranslations;































      if (t.values[name]) return t.values[name](element, name);































      if (t.names[name])  name = t.names[name];































      var attribute = element.attributes[name];































      return attribute ? attribute.nodeValue : null;































    }































    return element.getAttribute(name);































  },































































  getHeight: function(element) {































    return $(element).getDimensions().height;































  },































































  getWidth: function(element) {































    return $(element).getDimensions().width;































  },































































  classNames: function(element) {































    return new Element.ClassNames(element);































  },































































  hasClassName: function(element, className) {































    if (!(element = $(element))) return;































    var elementClassName = element.className;































    if (elementClassName.length == 0) return false;































    if (elementClassName == className ||































        elementClassName.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))































      return true;































    return false;































  },































































  addClassName: function(element, className) {































    if (!(element = $(element))) return;































    Element.classNames(element).add(className);































    return element;































  },































































  removeClassName: function(element, className) {































    if (!(element = $(element))) return;































    Element.classNames(element).remove(className);































    return element;































  },































































  toggleClassName: function(element, className) {































    if (!(element = $(element))) return;































    Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);































    return element;































  },































































  observe: function() {































    Event.observe.apply(Event, arguments);































    return $A(arguments).first();































  },































































  stopObserving: function() {































    Event.stopObserving.apply(Event, arguments);































    return $A(arguments).first();































  },































































  // removes whitespace-only text node children































  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);































    while (element = element.parentNode)































      if (element == ancestor) return true;































    return false;































  },































































  scrollTo: function(element) {































    element = $(element);































    var pos = Position.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) {































      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, camelized) {































    element = $(element);































    var elementStyle = element.style;































































    for (var property in styles)































      if (property == 'opacity') element.setOpacity(styles[property])































      else































        elementStyle[(property == 'float' || property == 'cssFloat') ?































          (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :































          (camelized ? property : property.camelize())] = 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('display');































    if (display != 'none' && display != null) // Safari bug































      return {width: element.offsetWidth, height: element.offsetHeight};































































    // All *Width and *Height properties give 0 on elements with display none,































    // so enable the element temporarily































    var els = element.style;































    var originalVisibility = els.visibility;































    var originalPosition = els.position;































    var originalDisplay = els.display;































    els.visibility = 'hidden';































    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';































      // Opera returns the offset relative to the positioning context, when an































      // element is position relative but top and left have not been defined































      if (window.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.style.overflow || 'auto';































    if ((Element.getStyle(element, 'overflow') || 'visible') != '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;































  }































};































































Object.extend(Element.Methods, {































  childOf: Element.Methods.descendantOf,































  childElements: Element.Methods.immediateDescendants































});































































if (Prototype.Browser.Opera) {































  Element.Methods._getStyle = Element.Methods.getStyle;































  Element.Methods.getStyle = function(element, style) {































    switch(style) {































      case 'left':































      case 'top':































      case 'right':































      case 'bottom':































        if (Element._getStyle(element, 'position') == 'static') return null;































      default: return Element._getStyle(element, style);































    }































  };































}































else if (Prototype.Browser.IE) {































  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) {































    element = $(element);































    var filter = element.getStyle('filter'), style = element.style;































    if (value == 1 || value === '') {































      style.filter = filter.replace(/alpha\([^\)]*\)/gi,'');































      return element;































    } else if (value < 0.00001) value = 0;































    style.filter = filter.replace(/alpha\([^\)]*\)/gi, '') +































      'alpha(opacity=' + (value * 100) + ')';































    return element;































  };































































  // IE is missing .innerHTML support for TABLE-related elements































  Element.Methods.update = function(element, html) {































    element = $(element);































    html = typeof html == 'undefined' ? '' : html.toString();































    var tagName = element.tagName.toUpperCase();































    if (['THEAD','TBODY','TR','TD'].include(tagName)) {































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































      switch (tagName) {































        case 'THEAD':































        case 'TBODY':































          div.innerHTML = '<table><tbody>' +  html.stripScripts() + '</tbody></table>';































          depth = 2;































          break;































        case 'TR':































          div.innerHTML = '<table><tbody><tr>' +  html.stripScripts() + '</tr></tbody></table>';































          depth = 3;































          break;































        case 'TD':































          div.innerHTML = '<table><tbody><tr><td>' +  html.stripScripts() + '</td></tr></tbody></table>';































          depth = 4;































      }































      $A(element.childNodes).each(function(node) { element.removeChild(node) });































      depth.times(function() { div = div.firstChild });































      $A(div.childNodes).each(function(node) { element.appendChild(node) });































    } else {































      element.innerHTML = html.stripScripts();































    }































    setTimeout(function() { html.evalScripts() }, 10);































    return element;































  }































}































else if (Prototype.Browser.Gecko) {































  Element.Methods.setOpacity = function(element, value) {































    element = $(element);































    element.style.opacity = (value == 1) ? 0.999999 :































      (value === '') ? '' : (value < 0.00001) ? 0 : value;































    return element;































  };































}































































Element._attributeTranslations = {































  names: {































    colspan:   "colSpan",































    rowspan:   "rowSpan",































    valign:    "vAlign",































    datetime:  "dateTime",































    accesskey: "accessKey",































    tabindex:  "tabIndex",































    enctype:   "encType",































    maxlength: "maxLength",































    readonly:  "readOnly",































    longdesc:  "longDesc"































  },































  values: {































    _getAttr: function(element, attribute) {































      return element.getAttribute(attribute, 2);































    },































    _flag: function(element, attribute) {































      return $(element).hasAttribute(attribute) ? attribute : null;































    },































    style: function(element) {































      return element.style.cssText.toLowerCase();































    },































    title: function(element) {































      var node = element.getAttributeNode('title');































      return node.specified ? node.nodeValue : null;































    }































  }































};































































(function() {































  Object.extend(this, {































    href: this._getAttr,































    src:  this._getAttr,































    type: this._getAttr,































    disabled: this._flag,































    checked:  this._flag,































    readonly: this._flag,































    multiple: this._flag































  });































}).call(Element._attributeTranslations.values);































































Element.Methods.Simulated = {































  hasAttribute: function(element, attribute) {































    var t = Element._attributeTranslations, node;































    attribute = t.names[attribute] || attribute;































    node = $(element).getAttributeNode(attribute);































    return node && node.specified;































  }































};































































Element.Methods.ByTag = {};































































Object.extend(Element, Element.Methods);































































if (!Prototype.BrowserFeatures.ElementExtensions &&































 document.createElement('div').__proto__) {































  window.HTMLElement = {};































  window.HTMLElement.prototype = document.createElement('div').__proto__;































  Prototype.BrowserFeatures.ElementExtensions = true;































}































































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 (tagName.constructor == Array) 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;































    var cache = Element.extend.cache;































    for (var property in methods) {































      var value = methods[property];































      if (!onlyIfAbsent || !(property in destination))































        destination[property] = cache.findOrStore(value);































    }































  }































































  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];































































    window[klass] = {};































    window[klass].prototype = document.createElement(tagName).__proto__;































    return window[klass];































  }































































  if (F.ElementExtensions) {































    copy(Element.Methods, HTMLElement.prototype);































    copy(Element.Methods.Simulated, HTMLElement.prototype, true);































  }































































  if (F.SpecificElementExtensions) {































    for (var tag in Element.Methods.ByTag) {































      var klass = findDOMClass(tag);































      if (typeof klass == "undefined") continue;































      copy(T[tag], klass.prototype);































    }































  }































































  Object.extend(Element, Element.Methods);































  delete Element.ByTag;































};































































var Toggle = { display: Element.toggle };































































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































































Abstract.Insertion = function(adjacency) {































  this.adjacency = adjacency;































}































































Abstract.Insertion.prototype = {































  initialize: function(element, content) {































    this.element = $(element);































    this.content = content.stripScripts();































































    if (this.adjacency && this.element.insertAdjacentHTML) {































      try {































        this.element.insertAdjacentHTML(this.adjacency, this.content);































      } catch (e) {































        var tagName = this.element.tagName.toUpperCase();































        if (['TBODY', 'TR'].include(tagName)) {































          this.insertContent(this.contentFromAnonymousTable());































        } else {































          throw e;































        }































      }































    } else {































      this.range = this.element.ownerDocument.createRange();































      if (this.initializeRange) this.initializeRange();































      this.insertContent([this.range.createContextualFragment(this.content)]);































    }































































    setTimeout(function() {content.evalScripts()}, 10);































  },































































  contentFromAnonymousTable: function() {































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































    div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';































    return $A(div.childNodes[0].childNodes[0].childNodes);































  }































}































































var Insertion = new Object();































































Insertion.Before = Class.create();































Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {































  initializeRange: function() {































    this.range.setStartBefore(this.element);































  },































































  insertContent: function(fragments) {































    fragments.each((function(fragment) {































      this.element.parentNode.insertBefore(fragment, this.element);































    }).bind(this));































  }































});































































Insertion.Top = Class.create();































Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {































  initializeRange: function() {































    this.range.selectNodeContents(this.element);































    this.range.collapse(true);































  },































































  insertContent: function(fragments) {































    fragments.reverse(false).each((function(fragment) {































      this.element.insertBefore(fragment, this.element.firstChild);































    }).bind(this));































  }































});































































Insertion.Bottom = Class.create();































Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {































  initializeRange: function() {































    this.range.selectNodeContents(this.element);































    this.range.collapse(this.element);































  },































































  insertContent: function(fragments) {































    fragments.each((function(fragment) {































      this.element.appendChild(fragment);































    }).bind(this));































  }































});































































Insertion.After = Class.create();































Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {































  initializeRange: function() {































    this.range.setStartAfter(this.element);































  },































































  insertContent: function(fragments) {































    fragments.each((function(fragment) {































      this.element.parentNode.insertBefore(fragment,































        this.element.nextSibling);































    }).bind(this));































  }































});































































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































































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);































/* 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();































































Selector.prototype = {































  initialize: function(expression) {































    this.expression = expression.strip();































    this.compileMatcher();































  },































































  compileMatcher: function() {































    // Selectors with namespaced attributes can't use the XPath version































    if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))































      return this.compileXPathMatcher();































































    var e = this.expression, ps = Selector.patterns, h = Selector.handlers,































        c = Selector.criteria, le, p, m;































































    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 in ps) {































        p = ps[i];































        if (m = e.match(p)) {































          this.matcher.push(typeof c[i] == 'function' ? c[i](m) :































    	      new Template(c[i]).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;































































    if (Selector._cache[e]) {































      this.xpath = Selector._cache[e]; return;































    }































































    this.matcher = ['.//*'];































    while (e && le != e && (/\S/).test(e)) {































      le = e;































      for (var i in ps) {































        if (m = e.match(ps[i])) {































          this.matcher.push(typeof x[i] == 'function' ? x[i](m) :































            new Template(x[i]).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;































    if (this.xpath) return document._getElementsByXPath(this.xpath, root);































    return this.matcher(root);































  },































































  match: function(element) {































    return this.findElements(document).include(element);































  },































































  toString: function() {































    return this.expression;































  },































































  inspect: function() {































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































  }































};































































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: "[@#{1}]",































    attr: function(m) {































      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 (typeof h === 'function') 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 or translate(text(), ' \t\r\n', '') = '')]",































      'checked':     "[@checked]",































      'disabled':    "[@disabled]",































      'enabled':     "[not(@disabled)]",































      'not': function(m) {































        var e = m[6], p = Selector.patterns,































            x = Selector.xpath, le, m, v;































































        var exclusion = [];































        while (e && le != e && (/\S/).test(e)) {































          le = e;































          for (var i in p) {































            if (m = e.match(p[i])) {































              v = typeof x[i] == 'function' ? x[i](m) : new Template(x[i]).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 = false;',































    attr: function(m) {































      m[3] = (m[5] || m[6]);































      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); 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: {































    // combinators must be listed first































    // (and descendant needs to be last combinator)































    laterSibling: /^\s*~\s*/,































    child:        /^\s*>\s*/,































    adjacent:     /^\s*\+\s*/,































    descendant:   /^\s/,































































    // selectors follow































    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,































    id:           /^#([\w\-\*]+)(\b|$)/,































    className:    /^\.([\w\-\*]+)(\b|$)/,































    pseudo:       /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|\s|(?=:))/,































    attrPresence: /^\[([\w]+)\]/,































    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\]]*?)\4|([^'"][^\]]*?)))?\]/































  },































































  handlers: {































    // UTILITY FUNCTIONS































    // joins two collections































    concat: function(a, b) {































      for (var i = 0, node; node = b[i]; i++)































        a.push(node);































      return a;































    },































































    // marks an array of nodes for counting































    mark: function(nodes) {































      for (var i = 0, node; node = nodes[i]; i++)































        node._counted = true;































      return nodes;































    },































































    unmark: function(nodes) {































      for (var i = 0, node; node = nodes[i]; i++)































        node._counted = undefined;































      return nodes;































    },































































    // mark each child node with its position (for nth calls)































    // "ofType" flag indicates whether we're indexing for nth-of-type































    // rather than nth-child































    index: function(parentNode, reverse, ofType) {































      parentNode._counted = true;































      if (reverse) {































        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {































          node = nodes[i];































          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;































        }































      } else {































        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)































          if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;































      }































    },































































    // filters out duplicates and extends all nodes































    unique: function(nodes) {































      if (nodes.length == 0) return nodes;































      var results = [], n;































      for (var i = 0, l = nodes.length; i < l; i++)































        if (!(n = nodes[i])._counted) {































          n._counted = true;































          results.push(Element.extend(n));































        }































      return Selector.handlers.unmark(results);































    },































































    // COMBINATOR FUNCTIONS































    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, children = [], 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;































    },































































    // TOKEN FUNCTIONS































    tagName: function(nodes, root, tagName, combinator) {































      tagName = tagName.toUpperCase();































      var results = [], h = Selector.handlers;































      if (nodes) {































        if (combinator) {































          // fastlane for ordinary descendant combinators































          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() == tagName) results.push(node);































        return results;































      } else return root.getElementsByTagName(tagName);































    },































































    id: function(nodes, root, id, combinator) {































      var targetNode = $(id), h = Selector.handlers;































      if (!nodes && root == document) return targetNode ? [targetNode] : [];































      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) {































      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) {































      if (!nodes) nodes = root.getElementsByTagName("*");































      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);































    },































































    // handles the an+b logic































    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;































      });































    },































































    // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type































    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._counted) {































          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++) {































        // IE treats comments as element nodes































        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) 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._counted) 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) 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.startsWith(v); },































    '$=': function(nv, v) { return nv.endsWith(v); },































    '*=': function(nv, v) { return nv.include(v); },































    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },































    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }































  },































































  matchElements: function(elements, expression) {































    var matches = new Selector(expression).findElements(), h = Selector.handlers;































    h.mark(matches);































    for (var i = 0, results = [], element; element = elements[i]; i++)































      if (element._counted) results.push(element);































    h.unmark(matches);































    return results;































  },































































  findElement: function(elements, expression, index) {































    if (typeof expression == 'number') {































      index = expression; expression = false;































    }































    return Selector.matchElements(elements, expression || '*')[index || 0];































  },































































  findChildElements: function(element, expressions) {































    var exprs = expressions.join(','), expressions = [];































    exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {































      expressions.push(m[1].strip());































    });































    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;































  }































});































































function $$() {































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































}































var Form = {































  reset: function(form) {































    $(form).reset();































    return form;































  },































































  serializeElements: function(elements, getHash) {































    var data = elements.inject({}, function(result, element) {































      if (!element.disabled && element.name) {































        var key = element.name, value = $(element).getValue();































        if (value != null) {































         	if (key in result) {































            if (result[key].constructor != Array) result[key] = [result[key]];































            result[key].push(value);































          }































          else result[key] = value;































        }































      }































      return result;































    });































































    return getHash ? data : Hash.toQueryString(data);































  }































};































































Form.Methods = {































  serialize: function(form, getHash) {































    return Form.serializeElements(Form.getElements(form), getHash);































  },































































  getElements: function(form) {































    return $A($(form).getElementsByTagName('*')).inject([],































      function(elements, child) {































        if (Form.Element.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) {































    return $(form).getElements().find(function(element) {































      return element.type != 'hidden' && !element.disabled &&































        ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());































    });































  },































































  focusFirstElement: function(form) {































    form = $(form);































    form.findFirstElement().activate();































    return form;































  },































































  request: function(form, options) {































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































































    var params = options.parameters;































    options.parameters = form.serialize(true);































































    if (params) {































      if (typeof params == 'string') params = params.toQueryParams();































      Object.extend(options.parameters, params);































    }































































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































      options.method = form.method;































































    return new Ajax.Request(form.readAttribute('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 Hash.toQueryString(pair);































      }































    }































    return '';































  },































































  getValue: function(element) {































    element = $(element);































    var method = element.tagName.toLowerCase();































    return Form.Element.Serializers[method](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'].include(element.type)))































        element.select();































    } catch (e) {}































    return element;































  },































































  disable: function(element) {































    element = $(element);































    element.blur();































    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) {































    switch (element.type.toLowerCase()) {































      case 'checkbox':































      case 'radio':































        return Form.Element.Serializers.inputSelector(element);































      default:































        return Form.Element.Serializers.textarea(element);































    }































  },































































  inputSelector: function(element) {































    return element.checked ? element.value : null;































  },































































  textarea: function(element) {































    return element.value;































  },































































  select: function(element) {































    return this[element.type == 'select-one' ?































      'selectOne' : 'selectMany'](element);































  },































































  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) {































    // extend element because hasAttribute may not be native































    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;































  }































}































































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































































Abstract.TimedObserver = function() {}































Abstract.TimedObserver.prototype = {































  initialize: function(element, frequency, callback) {































    this.frequency = frequency;































    this.element   = $(element);































    this.callback  = callback;































































    this.lastValue = this.getValue();































    this.registerCallback();































  },































































  registerCallback: function() {































    setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);































  },































































  onTimerEvent: function() {































    var value = this.getValue();































    var changed = ('string' == typeof this.lastValue && 'string' == typeof value































      ? this.lastValue != value : String(this.lastValue) != String(value));































    if (changed) {































      this.callback(this.element, value);































      this.lastValue = value;































    }































  }































}































































Form.Element.Observer = Class.create();































Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {































  getValue: function() {































    return Form.Element.getValue(this.element);































  }































});































































Form.Observer = Class.create();































Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {































  getValue: function() {































    return Form.serialize(this.element);































  }































});































































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































































Abstract.EventObserver = function() {}































Abstract.EventObserver.prototype = {































  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.bind(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();































Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {































  getValue: function() {































    return Form.Element.getValue(this.element);































  }































});































































Form.EventObserver = Class.create();































Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {































  getValue: function() {































    return Form.serialize(this.element);































  }































});































if (!window.Event) {































  var Event = new Object();































}































































Object.extend(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,































































  element: function(event) {































    return $(event.target || event.srcElement);































  },































































  isLeftClick: function(event) {































    return (((event.which) && (event.which == 1)) ||































            ((event.button) && (event.button == 1)));































  },































































  pointerX: function(event) {































    return event.pageX || (event.clientX +































      (document.documentElement.scrollLeft || document.body.scrollLeft));































  },































































  pointerY: function(event) {































    return event.pageY || (event.clientY +































      (document.documentElement.scrollTop || document.body.scrollTop));































  },































































  stop: function(event) {































    if (event.preventDefault) {































      event.preventDefault();































      event.stopPropagation();































    } else {































      event.returnValue = false;































      event.cancelBubble = true;































    }































  },































































  // find the first node with the given tagName, starting from the































  // node the event was triggered on; traverses the DOM upwards































  findElement: function(event, tagName) {































    var element = Event.element(event);































    while (element.parentNode && (!element.tagName ||































        (element.tagName.toUpperCase() != tagName.toUpperCase())))































      element = element.parentNode;































    return element;































  },































































  observers: false,































































  _observeAndCache: function(element, name, observer, useCapture) {































    if (!this.observers) this.observers = [];































    if (element.addEventListener) {































      this.observers.push([element, name, observer, useCapture]);































      element.addEventListener(name, observer, useCapture);































    } else if (element.attachEvent) {































      this.observers.push([element, name, observer, useCapture]);































      element.attachEvent('on' + name, observer);































    }































  },































































  unloadCache: function() {































    if (!Event.observers) return;































    for (var i = 0, length = Event.observers.length; i < length; i++) {































      Event.stopObserving.apply(this, Event.observers[i]);































      Event.observers[i][0] = null;































    }































    Event.observers = false;































  },































































  observe: function(element, name, observer, useCapture) {































    element = $(element);































    useCapture = useCapture || false;































































    if (name == 'keypress' &&































      (Prototype.Browser.WebKit || element.attachEvent))































      name = 'keydown';































































    Event._observeAndCache(element, name, observer, useCapture);































  },































































  stopObserving: function(element, name, observer, useCapture) {































    element = $(element);































    useCapture = useCapture || false;































































    if (name == 'keypress' &&































        (Prototype.Browser.WebKit || element.attachEvent))































      name = 'keydown';































































    if (element.removeEventListener) {































      element.removeEventListener(name, observer, useCapture);































    } else if (element.detachEvent) {































      try {































        element.detachEvent('on' + name, observer);































      } catch (e) {}































    }































  }































});































































/* prevent memory leaks in IE */































if (Prototype.Browser.IE)































  Event.observe(window, 'unload', Event.unloadCache, false);































var Position = {































  // set to true if needed, warning: firefox performance problems































  // NOT neeeded for page scrolling, only if draggable contained in































  // scrollable elements































  includeScrollOffsets: false,































































  // must be called before calling withinIncludingScrolloffset, every time the































  // page is scrolled































  prepare: function() {































    this.deltaX =  window.pageXOffset































                || document.documentElement.scrollLeft































                || document.body.scrollLeft































                || 0;































    this.deltaY =  window.pageYOffset































                || document.documentElement.scrollTop































                || document.body.scrollTop































                || 0;































  },































































  realOffset: function(element) {































    var valueT = 0, valueL = 0;































    do {































      valueT += element.scrollTop  || 0;































      valueL += element.scrollLeft || 0;































      element = element.parentNode;































    } while (element);































    return [valueL, valueT];































  },































































  cumulativeOffset: function(element) {































    var valueT = 0, valueL = 0;































    do {































      valueT += element.offsetTop  || 0;































      valueL += element.offsetLeft || 0;































      element = element.offsetParent;































    } while (element);































    return [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=='BODY') break;































        var p = Element.getStyle(element, 'position');































        if (p == 'relative' || p == 'absolute') break;































      }































    } while (element);































    return [valueL, valueT];































  },































































  offsetParent: 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;































  },































































  // caches x/y coordinate pair to use with overlap































  within: function(element, x, y) {































    if (this.includeScrollOffsets)































      return this.withinIncludingScrolloffsets(element, x, y);































    this.xcomp = x;































    this.ycomp = y;































    this.offset = this.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 = this.realOffset(element);































































    this.xcomp = x + offsetcache[0] - this.deltaX;































    this.ycomp = y + offsetcache[1] - this.deltaY;































    this.offset = this.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);































  },































































  // within must be called directly before































  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;































  },































































  page: function(forElement) {































    var valueT = 0, valueL = 0;































































    var element = forElement;































    do {































      valueT += element.offsetTop  || 0;































      valueL += element.offsetLeft || 0;































































      // Safari fix































      if (element.offsetParent == document.body)































        if (Element.getStyle(element,'position')=='absolute') break;































































    } while (element = element.offsetParent);































































    element = forElement;































    do {































      if (!window.opera || element.tagName=='BODY') {































        valueT -= element.scrollTop  || 0;































        valueL -= element.scrollLeft || 0;































      }































    } while (element = element.parentNode);































































    return [valueL, valueT];































  },































































  clone: function(source, target) {































    var options = Object.extend({































      setLeft:    true,































      setTop:     true,































      setWidth:   true,































      setHeight:  true,































      offsetTop:  0,































      offsetLeft: 0































    }, arguments[2] || {})































































    // find page position of source































    source = $(source);































    var p = Position.page(source);































































    // find coordinate system to use































    target = $(target);































    var delta = [0, 0];































    var parent = null;































    // delta [0,0] will do fine with position: fixed elements,































    // position:absolute needs offsetParent deltas































    if (Element.getStyle(target,'position') == 'absolute') {































      parent = Position.offsetParent(target);































      delta = Position.page(parent);































    }































































    // correct by body offsets (fixes Safari)































    if (parent == document.body) {































      delta[0] -= document.body.offsetLeft;































      delta[1] -= document.body.offsetTop;































    }































































    // set position































    if(options.setLeft)   target.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';































    if(options.setTop)    target.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';































    if(options.setWidth)  target.style.width = source.offsetWidth + 'px';































    if(options.setHeight) target.style.height = source.offsetHeight + 'px';































  },































































  absolutize: function(element) {































    element = $(element);































    if (element.style.position == 'absolute') return;































    Position.prepare();































































    var offsets = Position.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';































  },































































  relativize: function(element) {































    element = $(element);































    if (element.style.position == 'relative') return;































    Position.prepare();































































    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;































  }































}































































// Safari returns margins on body which is incorrect if the child is absolutely































// positioned.  For performance reasons, redefine Position.cumulativeOffset for































// KHTML/WebKit only.































if (Prototype.Browser.WebKit) {































  Position.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 [valueL, valueT];































  }































}































































Element.addMethods();