Merge branch 'master' of github.com:flori/json

18 files changed, 186 insertions, 4335 deletions

diff --git a/.travis.yml b/.travis.yml
index 2d79ea2..1ac58d8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,11 +12,12 @@ rvm:
   - 2.4
   - 2.5
   - 2.6
-  - jruby
   - ruby-head
+  - jruby
 matrix:
   allow_failures:
-    - rvm: ruby-head
     - rvm: 1.9.3
+    - rvm: ruby-head
+    - rvm: jruby
 script: "bundle exec rake"
 sudo: false
diff --git a/CHANGES.md b/CHANGES.md
index d96e9ae..92a1925 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,8 @@
 # Changes
 
+## 2019-02-21 (2.2.0)
+ * Adds support for 2.6 BigDecimal and ruby standard library Set datetype.
+
 ## 2017-04-18 (2.1.0)
  * Allow passing of `decimal_class` option to specify a class as which to parse
    JSON float numbers.
diff --git a/README.md b/README.md
index 2ef93dc..5923cfb 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
-# JSON implementation for Ruby ![Travis Widget]
-[Travis Widget]: http://travis-ci.org/flori/json.svg?branch=master
+# JSON implementation for Ruby
+
+[![Travis Widget](http://travis-ci.org/flori/json.svg?branch=master)](https://travis-ci.org/flori/json)
 
 ## Description
 
@@ -155,7 +156,7 @@ not been required yet.
 The JSON module doesn't extend `Exception` by default. If you convert an `Exception`
 object to JSON, it will by default only include the exception message.
 
-To include the full details, you must either load the load the `json/add/core` mentioned
+To include the full details, you must either load the `json/add/core` mentioned
 above, or specifically load the exception addition:
 
 ```ruby
@@ -206,7 +207,7 @@ JSON representation later. In this case it's `Range`, but any namespace of
 the form `A::B` or `::A::B` will do. All other keys are arbitrary and can be
 used to store the necessary data to configure the object to be deserialised.
 
-If a the key `json_class` is found in a JSON object, the JSON parser checks
+If the key `json_class` is found in a JSON object, the JSON parser checks
 if the given class responds to the `json_create` class method. If so, it is
 called with the JSON object converted to a Ruby hash. So a range can
 be deserialised by implementing `Range.json_create` like this:
@@ -405,4 +406,4 @@ The latest version of this library can be downloaded at
 
 Online Documentation should be located at
 
-* http://json.rubyforge.org
+* https://www.rubydoc.info/gems/json
diff --git a/Rakefile b/Rakefile
index c6c195f..ce39095 100644
--- a/Rakefile
+++ b/Rakefile
@@ -23,8 +23,13 @@ class UndocumentedTestTask < Rake::TestTask
   def desc(*) end
 end
 
-MAKE   = ENV['MAKE']   || %w[gmake make].find { |c| system(c, '-v') }
-BUNDLE = ENV['BUNDLE'] || %w[bundle].find { |c| system(c, '-v') }
+which = lambda { |c|
+  w = `which #{c}`
+  break w.chomp unless w.empty?
+}
+
+MAKE   = ENV['MAKE']   || %w[gmake make].find(&which)
+BUNDLE = ENV['BUNDLE'] || %w[bundle].find(&which)
 PKG_NAME          = 'json'
 PKG_TITLE         = 'JSON Implementation for Ruby'
 PKG_VERSION       = File.read('VERSION').chomp
@@ -47,8 +52,8 @@ JAVA_CLASSES        = []
 JRUBY_PARSER_JAR    = File.expand_path("lib/json/ext/parser.jar")
 JRUBY_GENERATOR_JAR = File.expand_path("lib/json/ext/generator.jar")
 
-RAGEL_CODEGEN     = %w[rlcodegen rlgen-cd ragel].find { |c| system(c, '-v') }
-RAGEL_DOTGEN      = %w[rlgen-dot rlgen-cd ragel].find { |c| system(c, '-v') }
+RAGEL_CODEGEN     = %w[rlcodegen rlgen-cd ragel].find(&which)
+RAGEL_DOTGEN      = %w[rlgen-dot rlgen-cd ragel].find(&which)
 
 desc "Installing library (pure)"
 task :install_pure => :version do
@@ -238,7 +243,7 @@ if defined?(RUBY_ENGINE) and RUBY_ENGINE == 'jruby'
       classpath = (Dir['java/lib/*.jar'] << 'java/src' << JRUBY_JAR) * ':'
       obj = src.sub(/\.java\Z/, '.class')
       file obj => src do
-        sh 'javac', '-classpath', classpath, '-source', '1.5', '-target', '1.5', src
+        sh 'javac', '-classpath', classpath, '-source', '1.6', '-target', '1.6', src
       end
       JAVA_CLASSES << obj
     end
diff --git a/VERSION b/VERSION
index 7ec1d6d..ccbccc3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.0
+2.2.0
diff --git a/data/example.json b/data/example.json
deleted file mode 100644
index 88b4e82..0000000
--- a/data/example.json
+++ /dev/null
@@ -1 +0,0 @@
-{"a":2,"b":3.141,"TIME":"2007-03-14T11:52:40","c":"c","d":[1,"b",3.14],"COUNT":666,"e":{"foo":"bar"},"foo":"B\u00e4r","g":"\u677e\u672c\u884c\u5f18","h":1000.0,"bar":"\u00a9 \u2260 \u20ac!","i":0.001,"j":"\ud840\udc01"}
diff --git a/data/index.html b/data/index.html
deleted file mode 100644
index abe6fdb..0000000
--- a/data/index.html
+++ /dev/null
@@ -1,38 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
-        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
-  <head>
-    <title>Javascript Example</title>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>    
-    <script src="prototype.js" type="text/javascript"></script>
-  </head>
-
-  <body>
-    <h1>Fetching object from server</h1>
-    <div id="list">
-      Wait...<br/>
-      <noscript><p>Switch on Javascript!</p></noscript>
-    </div>
-    <script type="text/javascript">
-    <!--
-    function pollJSON() {
-      new Ajax.Request('/json',
-        {
-          method: 'get',
-          onSuccess: function(transport) {
-            var response = transport.responseText || "no response text";
-            response = eval("(" + response + ")");
-            var text = "";
-            for (var k in response) {
-              text = text + "<b>" + k + "</b>: " + response[k] + "<br/>"
-            }
-            $("list").update(text);
-          },
-          onFailure: function() { alert('Something went wrong...') }
-        });
-    }
-    new PeriodicalExecuter(pollJSON, 1);
-    -->
-    </script>
-  </body>
-</html>
diff --git a/data/prototype.js b/data/prototype.js
deleted file mode 100644
index 5c73462..0000000
--- a/data/prototype.js
+++ /dev/null
@@ -1,4184 +0,0 @@
-/*  Prototype JavaScript framework, version 1.6.0
- *  (c) 2005-2007 Sam Stephenson
- *
- *  Prototype is freely distributable under the terms of an MIT-style license.
- *  For details, see the Prototype web site: http://www.prototypejs.org/
- *
- *--------------------------------------------------------------------------*/
-
-var Prototype = {
-  Version: '1.6.0',
-
-  Browser: {
-    IE:     !!(window.attachEvent && !window.opera),
-    Opera:  !!window.opera,
-    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
-    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
-    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
-  },
-
-  BrowserFeatures: {
-    XPath: !!document.evaluate,
-    ElementExtensions: !!window.HTMLElement,
-    SpecificElementExtensions:
-      document.createElement('div').__proto__ &&
-      document.createElement('div').__proto__ !==
-        document.createElement('form').__proto__
-  },
-
-  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
-  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
-
-  emptyFunction: function() { },
-  K: function(x) { return x }
-};
-
-if (Prototype.Browser.MobileSafari)
-  Prototype.BrowserFeatures.SpecificElementExtensions = false;
-
-if (Prototype.Browser.WebKit)
-  Prototype.BrowserFeatures.XPath = false;
-
-/* Based on Alex Arnell's inheritance implementation. */
-var Class = {
-  create: function() {
-    var parent = null, properties = $A(arguments);
-    if (Object.isFunction(properties[0]))
-      parent = properties.shift();
-
-    function klass() {
-      this.initialize.apply(this, arguments);
-    }
-
-    Object.extend(klass, Class.Methods);
-    klass.superclass = parent;
-    klass.subclasses = [];
-
-    if (parent) {
-      var subclass = function() { };
-      subclass.prototype = parent.prototype;
-      klass.prototype = new subclass;
-      parent.subclasses.push(klass);
-    }
-
-    for (var i = 0; i < properties.length; i++)
-      klass.addMethods(properties[i]);
-
-    if (!klass.prototype.initialize)
-      klass.prototype.initialize = Prototype.emptyFunction;
-
-    klass.prototype.constructor = klass;
-
-    return klass;
-  }
-};
-
-Class.Methods = {
-  addMethods: function(source) {
-    var ancestor   = this.superclass && this.superclass.prototype;
-    var properties = Object.keys(source);
-
-    if (!Object.keys({ toString: true }).length)
-      properties.push("toString", "valueOf");
-
-    for (var i = 0, length = properties.length; i < length; i++) {
-      var property = properties[i], value = source[property];
-      if (ancestor && Object.isFunction(value) &&
-          value.argumentNames().first() == "$super") {
-        var method = value, value = Object.extend((function(m) {
-          return function() { return ancestor[m].apply(this, arguments) };
-        })(property).wrap(method), {
-          valueOf:  function() { return method },
-          toString: function() { return method.toString() }
-        });
-      }
-      this.prototype[property] = value;
-    }
-
-    return this;
-  }
-};
-
-var Abstract = { };
-
-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.isElement(object)) 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(', ') + '}';
-  },
-
-  toQueryString: function(object) {
-    return $H(object).toQueryString();
-  },
-
-  toHTML: function(object) {
-    return object && object.toHTML ? object.toHTML() : String.interpret(object);
-  },
-
-  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);
-  },
-
-  isElement: function(object) {
-    return object && object.nodeType == 1;
-  },
-
-  isArray: function(object) {
-    return object && object.constructor === Array;
-  },
-
-  isHash: function(object) {
-    return object instanceof Hash;
-  },
-
-  isFunction: function(object) {
-    return typeof object == "function";
-  },
-
-  isString: function(object) {
-    return typeof object == "string";
-  },
-
-  isNumber: function(object) {
-    return typeof object == "number";
-  },
-
-  isUndefined: function(object) {
-    return typeof object == "undefined";
-  }
-});
-
-Object.extend(Function.prototype, {
-  argumentNames: function() {
-    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
-    return names.length == 1 && !names[0] ? [] : names;
-  },
-
-  bind: function() {
-    if (arguments.length < 2 && arguments[0] === undefined) return this;
-    var __method = this, args = $A(arguments), object = args.shift();
-    return function() {
-      return __method.apply(object, args.concat($A(arguments)));
-    }
-  },
-
-  bindAsEventListener: function() {
-    var __method = this, args = $A(arguments), object = args.shift();
-    return function(event) {
-      return __method.apply(object, [event || window.event].concat(args));
-    }
-  },
-
-  curry: function() {
-    if (!arguments.length) return this;
-    var __method = this, args = $A(arguments);
-    return function() {
-      return __method.apply(this, args.concat($A(arguments)));
-    }
-  },
-
-  delay: function() {
-    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
-    return window.setTimeout(function() {
-      return __method.apply(__method, args);
-    }, timeout);
-  },
-
-  wrap: function(wrapper) {
-    var __method = this;
-    return function() {
-      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
-    }
-  },
-
-  methodize: function() {
-    if (this._methodized) return this._methodized;
-    var __method = this;
-    return this._methodized = function() {
-      return __method.apply(null, [this].concat($A(arguments)));
-    };
-  }
-});
-
-Function.prototype.defer = Function.prototype.delay.curry(0.01);
-
-Date.prototype.toJSON = function() {
-  return '"' + this.getUTCFullYear() + '-' +
-    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
-    this.getUTCDate().toPaddedString(2) + 'T' +
-    this.getUTCHours().toPaddedString(2) + ':' +
-    this.getUTCMinutes().toPaddedString(2) + ':' +
-    this.getUTCSeconds().toPaddedString(2) + 'Z"';
-};
-
-var Try = {
-  these: function() {
-    var returnValue;
-
-    for (var i = 0, length = arguments.length; i < length; i++) {
-      var lambda = arguments[i];
-      try {
-        returnValue = lambda();
-        break;
-      } catch (e) { }
-    }
-
-    return returnValue;
-  }
-};
-
-RegExp.prototype.match = RegExp.prototype.test;
-
-RegExp.escape = function(str) {
-  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
-};
-
-/*--------------------------------------------------------------------------*/
-
-var PeriodicalExecuter = Class.create({
-  initialize: function(callback, frequency) {
-    this.callback = callback;
-    this.frequency = frequency;
-    this.currentlyExecuting = false;
-
-    this.registerCallback();
-  },
-
-  registerCallback: function() {
-    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
-  },
-
-  execute: function() {
-    this.callback(this);
-  },
-
-  stop: function() {
-    if (!this.timer) return;
-    clearInterval(this.timer);
-    this.timer = null;
-  },
-
-  onTimerEvent: function() {
-    if (!this.currentlyExecuting) {
-      try {
-        this.currentlyExecuting = true;
-        this.execute();
-      } 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 String(this);
-  },
-
-  truncate: function(length, truncation) {
-    length = length || 30;
-    truncation = truncation === undefined ? '...' : truncation;
-    return this.length > length ?
-      this.slice(0, length - truncation.length) + truncation : String(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 = new Element('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 (!Object.isArray(hash[key])) 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) {
-    return count < 1 ? '' : new Array(count + 1).join(this);
-  },
-
-  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}');
-  },
-
-  isJSON: function() {
-    var str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
-    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
-  },
-
-  evalJSON: function(sanitize) {
-    var json = this.unfilterJSON();
-    try {
-      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
-    } catch (e) { }
-    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
-  },
-
-  include: function(pattern) {
-    return this.indexOf(pattern) > -1;
-  },
-
-  startsWith: function(pattern) {
-    return this.indexOf(pattern) === 0;
-  },
-
-  endsWith: function(pattern) {
-    var d = this.length - pattern.length;
-    return d >= 0 && this.lastIndexOf(pattern) === d;
-  },
-
-  empty: function() {
-    return this == '';
-  },
-
-  blank: function() {
-    return /^\s*$/.test(this);
-  },
-
-  interpolate: function(object, pattern) {
-    return new Template(this, pattern).evaluate(object);
-  }
-});
-
-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 (Object.isFunction(replacement)) 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({
-  initialize: function(template, pattern) {
-    this.template = template.toString();
-    this.pattern = pattern || Template.Pattern;
-  },
-
-  evaluate: function(object) {
-    if (Object.isFunction(object.toTemplateReplacements))
-      object = object.toTemplateReplacements();
-
-    return this.template.gsub(this.pattern, function(match) {
-      if (object == null) return '';
-
-      var before = match[1] || '';
-      if (before == '\\') return match[2];
-
-      var ctx = object, expr = match[3];
-      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/, match = pattern.exec(expr);
-      if (match == null) return before;
-
-      while (match != null) {
-        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
-        ctx = ctx[comp];
-        if (null == ctx || '' == match[3]) break;
-        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
-        match = pattern.exec(expr);
-      }
-
-      return before + String.interpret(ctx);
-    }.bind(this));
-  }
-});
-Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
-
-var $break = { };
-
-var Enumerable = {
-  each: function(iterator, context) {
-    var index = 0;
-    iterator = iterator.bind(context);
-    try {
-      this._each(function(value) {
-        iterator(value, index++);
-      });
-    } catch (e) {
-      if (e != $break) throw e;
-    }
-    return this;
-  },
-
-  eachSlice: function(number, iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var index = -number, slices = [], array = this.toArray();
-    while ((index += number) < array.length)
-      slices.push(array.slice(index, index+number));
-    return slices.collect(iterator, context);
-  },
-
-  all: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var result = true;
-    this.each(function(value, index) {
-      result = result && !!iterator(value, index);
-      if (!result) throw $break;
-    });
-    return result;
-  },
-
-  any: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var result = false;
-    this.each(function(value, index) {
-      if (result = !!iterator(value, index))
-        throw $break;
-    });
-    return result;
-  },
-
-  collect: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var results = [];
-    this.each(function(value, index) {
-      results.push(iterator(value, index));
-    });
-    return results;
-  },
-
-  detect: function(iterator, context) {
-    iterator = iterator.bind(context);
-    var result;
-    this.each(function(value, index) {
-      if (iterator(value, index)) {
-        result = value;
-        throw $break;
-      }
-    });
-    return result;
-  },
-
-  findAll: function(iterator, context) {
-    iterator = iterator.bind(context);
-    var results = [];
-    this.each(function(value, index) {
-      if (iterator(value, index))
-        results.push(value);
-    });
-    return results;
-  },
-
-  grep: function(filter, iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var results = [];
-
-    if (Object.isString(filter))
-      filter = new RegExp(filter);
-
-    this.each(function(value, index) {
-      if (filter.match(value))
-        results.push(iterator(value, index));
-    });
-    return results;
-  },
-
-  include: function(object) {
-    if (Object.isFunction(this.indexOf))
-      if (this.indexOf(object) != -1) return true;
-
-    var found = false;
-    this.each(function(value) {
-      if (value == object) {
-        found = true;
-        throw $break;
-      }
-    });
-    return found;
-  },
-
-  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, context) {
-    iterator = iterator.bind(context);
-    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, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var result;
-    this.each(function(value, index) {
-      value = iterator(value, index);
-      if (result == undefined || value >= result)
-        result = value;
-    });
-    return result;
-  },
-
-  min: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var result;
-    this.each(function(value, index) {
-      value = iterator(value, index);
-      if (result == undefined || value < result)
-        result = value;
-    });
-    return result;
-  },
-
-  partition: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
-    var trues = [], falses = [];
-    this.each(function(value, index) {
-      (iterator(value, index) ?
-        trues : falses).push(value);
-    });
-    return [trues, falses];
-  },
-
-  pluck: function(property) {
-    var results = [];
-    this.each(function(value) {
-      results.push(value[property]);
-    });
-    return results;
-  },
-
-  reject: function(iterator, context) {
-    iterator = iterator.bind(context);
-    var results = [];
-    this.each(function(value, index) {
-      if (!iterator(value, index))
-        results.push(value);
-    });
-    return results;
-  },
-
-  sortBy: function(iterator, context) {
-    iterator = iterator.bind(context);
-    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 = $A(arguments);
-    if (Object.isFunction(args.last()))
-      iterator = args.pop();
-
-    var collections = [this].concat(args).map($A);
-    return this.map(function(value, index) {
-      return iterator(collections.pluck(index));
-    });
-  },
-
-  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,
-  filter:  Enumerable.findAll,
-  member:  Enumerable.include,
-  entries: Enumerable.toArray,
-  every:   Enumerable.all,
-  some:    Enumerable.any
-});
-function $A(iterable) {
-  if (!iterable) return [];
-  if (iterable.toArray) return iterable.toArray();
-  var length = iterable.length, results = new Array(length);
-  while (length--) results[length] = iterable[length];
-  return results;
-}
-
-if (Prototype.Browser.WebKit) {
-  function $A(iterable) {
-    if (!iterable) return [];
-    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
-        iterable.toArray) return iterable.toArray();
-    var length = iterable.length, results = new Array(length);
-    while (length--) results[length] = iterable[length];
-    return results;
-  }
-}
-
-Array.from = $A;
-
-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(Object.isArray(value) ?
-        value.flatten() : [value]);
-    });
-  },
-
-  without: function() {
-    var values = $A(arguments);
-    return this.select(function(value) {
-      return !values.include(value);
-    });
-  },
-
-  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;
-    });
-  },
-
-  intersect: function(array) {
-    return this.uniq().findAll(function(item) {
-      return array.detect(function(value) { return item === value });
-    });
-  },
-
-  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(', ') + ']';
-  }
-});
-
-// use native browser JS 1.6 implementation if available
-if (Object.isFunction(Array.prototype.forEach))
-  Array.prototype._each = Array.prototype.forEach;
-
-if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
-  i || (i = 0);
-  var length = this.length;
-  if (i < 0) i = length + i;
-  for (; i < length; i++)
-    if (this[i] === item) return i;
-  return -1;
-};
-
-if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
-  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
-  var n = this.slice(0, i).reverse().indexOf(item);
-  return (n < 0) ? n : i - n - 1;
-};
-
-Array.prototype.toArray = Array.prototype.clone;
-
-function $w(string) {
-  if (!Object.isString(string)) return [];
-  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 (Object.isArray(arguments[i])) {
-        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
-          array.push(arguments[i][j]);
-      } else {
-        array.push(arguments[i]);
-      }
-    }
-    return array;
-  };
-}
-Object.extend(Number.prototype, {
-  toColorPart: function() {
-    return this.toPaddedString(2, 16);
-  },
-
-  succ: function() {
-    return this + 1;
-  },
-
-  times: function(iterator) {
-    $R(0, this, true).each(iterator);
-    return this;
-  },
-
-  toPaddedString: function(length, radix) {
-    var string = this.toString(radix || 10);
-    return '0'.times(length - string.length) + string;
-  },
-
-  toJSON: function() {
-    return isFinite(this) ? this.toString() : 'null';
-  }
-});
-
-$w('abs round ceil floor').each(function(method){
-  Number.prototype[method] = Math[method].methodize();
-});
-function $H(object) {
-  return new Hash(object);
-};
-
-var Hash = Class.create(Enumerable, (function() {
-  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;
-  }()) {
-    function each(iterator) {
-      var cache = [];
-      for (var key in this._object) {
-        var value = this._object[key];
-        if (cache.include(key)) continue;
-        cache.push(key);
-        var pair = [key, value];
-        pair.key = key;
-        pair.value = value;
-        iterator(pair);
-      }
-    }
-  } else {
-    function each(iterator) {
-      for (var key in this._object) {
-        var value = this._object[key], pair = [key, value];
-        pair.key = key;
-        pair.value = value;
-        iterator(pair);
-      }
-    }
-  }
-
-  function toQueryPair(key, value) {
-    if (Object.isUndefined(value)) return key;
-    return key + '=' + encodeURIComponent(String.interpret(value));
-  }
-
-  return {
-    initialize: function(object) {
-      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
-    },
-
-    _each: each,
-
-    set: function(key, value) {
-      return this._object[key] = value;
-    },
-
-    get: function(key) {
-      return this._object[key];
-    },
-
-    unset: function(key) {
-      var value = this._object[key];
-      delete this._object[key];
-      return value;
-    },
-
-    toObject: function() {
-      return Object.clone(this._object);
-    },
-
-    keys: function() {
-      return this.pluck('key');
-    },
-
-    values: function() {
-      return this.pluck('value');
-    },
-
-    index: function(value) {
-      var match = this.detect(function(pair) {
-        return pair.value === value;
-      });
-      return match && match.key;
-    },
-
-    merge: function(object) {
-      return this.clone().update(object);
-    },
-
-    update: function(object) {
-      return new Hash(object).inject(this, function(result, pair) {
-        result.set(pair.key, pair.value);
-        return result;
-      });
-    },
-
-    toQueryString: function() {
-      return this.map(function(pair) {
-        var key = encodeURIComponent(pair.key), values = pair.value;
-
-        if (values && typeof values == 'object') {
-          if (Object.isArray(values))
-            return values.map(toQueryPair.curry(key)).join('&');
-        }
-        return toQueryPair(key, values);
-      }).join('&');
-    },
-
-    inspect: function() {
-      return '#<Hash:{' + this.map(function(pair) {
-        return pair.map(Object.inspect).join(': ');
-      }).join(', ') + '}>';
-    },
-
-    toJSON: function() {
-      return Object.toJSON(this.toObject());
-    },
-
-    clone: function() {
-      return new Hash(this);
-    }
-  }
-})());
-
-Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
-Hash.from = $H;
-var ObjectRange = Class.create(Enumerable, {
-  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 $R = function(start, end, exclusive) {
-  return new ObjectRange(start, end, exclusive);
-};
-
-var Ajax = {
-  getTransport: function() {
-    return Try.these(
-      function() {return new XMLHttpRequest()},
-      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
-      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
-    ) || false;
-  },
-
-  activeRequestCount: 0
-};
-
-Ajax.Responders = {
-  responders: [],
-
-  _each: function(iterator) {
-    this.responders._each(iterator);
-  },
-
-  register: function(responder) {
-    if (!this.include(responder))
-      this.responders.push(responder);
-  },
-
-  unregister: function(responder) {
-    this.responders = this.responders.without(responder);
-  },
-
-  dispatch: function(callback, request, transport, json) {
-    this.each(function(responder) {
-      if (Object.isFunction(responder[callback])) {
-        try {
-          responder[callback].apply(responder, [request, transport, json]);
-        } catch (e) { }
-      }
-    });
-  }
-};
-
-Object.extend(Ajax.Responders, Enumerable);
-
-Ajax.Responders.register({
-  onCreate:   function() { Ajax.activeRequestCount++ },
-  onComplete: function() { Ajax.activeRequestCount-- }
-});
-
-Ajax.Base = Class.create({
-  initialize: function(options) {
-    this.options = {
-      method:       'post',
-      asynchronous: true,
-      contentType:  'application/x-www-form-urlencoded',
-      encoding:     'UTF-8',
-      parameters:   '',
-      evalJSON:     true,
-      evalJS:       true
-    };
-    Object.extend(this.options, options || { });
-
-    this.options.method = this.options.method.toLowerCase();
-    if (Object.isString(this.options.parameters))
-      this.options.parameters = this.options.parameters.toQueryParams();
-  }
-});
-
-Ajax.Request = Class.create(Ajax.Base, {
-  _complete: false,
-
-  initialize: function($super, url, options) {
-    $super(options);
-    this.transport = Ajax.getTransport();
-    this.request(url);
-  },
-
-  request: function(url) {
-    this.url = url;
-    this.method = this.options.method;
-    var params = Object.clone(this.options.parameters);
-
-    if (!['get', 'post'].include(this.method)) {
-      // simulate other verbs over post
-      params['_method'] = this.method;
-      this.method = 'post';
-    }
-
-    this.parameters = params;
-
-    if (params = Object.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 {
-      var response = new Ajax.Response(this);
-      if (this.options.onCreate) this.options.onCreate(response);
-      Ajax.Responders.dispatch('onCreate', this, response);
-
-      this.transport.open(this.method.toUpperCase(), this.url,
-        this.options.asynchronous);
-
-      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
-
-      this.transport.onreadystatechange = this.onStateChange.bind(this);
-      this.setRequestHeaders();
-
-      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
-      this.transport.send(this.body);
-
-      /* Force Firefox to handle ready state 4 for synchronous requests */
-      if (!this.options.asynchronous && this.transport.overrideMimeType)
-        this.onStateChange();
-
-    }
-    catch (e) {
-      this.dispatchException(e);
-    }
-  },
-
-  onStateChange: function() {
-    var readyState = this.transport.readyState;
-    if (readyState > 1 && !((readyState == 4) && this._complete))
-      this.respondToReadyState(this.transport.readyState);
-  },
-
-  setRequestHeaders: function() {
-    var headers = {
-      'X-Requested-With': 'XMLHttpRequest',
-      'X-Prototype-Version': Prototype.Version,
-      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
-    };
-
-    if (this.method == 'post') {
-      headers['Content-type'] = this.options.contentType +
-        (this.options.encoding ? '; charset=' + this.options.encoding : '');
-
-      /* Force "Connection: close" for older Mozilla browsers to work
-       * around a bug where XMLHttpRequest sends an incorrect
-       * Content-length header. See Mozilla Bugzilla #246651.
-       */
-      if (this.transport.overrideMimeType &&
-          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
-            headers['Connection'] = 'close';
-    }
-
-    // user-defined headers
-    if (typeof this.options.requestHeaders == 'object') {
-      var extras = this.options.requestHeaders;
-
-      if (Object.isFunction(extras.push))
-        for (var i = 0, length = extras.length; i < length; i += 2)
-          headers[extras[i]] = extras[i+1];
-      else
-        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
-    }
-
-    for (var name in headers)
-      this.transport.setRequestHeader(name, headers[name]);
-  },
-
-  success: function() {
-    var status = this.getStatus();
-    return !status || (status >= 200 && status < 300);
-  },
-
-  getStatus: function() {
-    try {
-      return this.transport.status || 0;
-    } catch (e) { return 0 }
-  },
-
-  respondToReadyState: function(readyState) {
-    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
-
-    if (state == 'Complete') {
-      try {
-        this._complete = true;
-        (this.options['on' + response.status]
-         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
-         || Prototype.emptyFunction)(response, response.headerJSON);
-      } catch (e) {
-        this.dispatchException(e);
-      }
-
-      var contentType = response.getHeader('Content-type');
-      if (this.options.evalJS == 'force'
-          || (this.options.evalJS && contentType
-          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
-        this.evalResponse();
-    }
-
-    try {
-      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
-      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
-    } catch (e) {
-      this.dispatchException(e);
-    }
-
-    if (state == 'Complete') {
-      // 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 }
-  },
-
-  evalResponse: function() {
-    try {
-      return eval((this.transport.responseText || '').unfilterJSON());
-    } catch (e) {
-      this.dispatchException(e);
-    }
-  },
-
-  dispatchException: function(exception) {
-    (this.options.onException || Prototype.emptyFunction)(this, exception);
-    Ajax.Responders.dispatch('onException', this, exception);
-  }
-});
-
-Ajax.Request.Events =
-  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
-
-Ajax.Response = Class.create({
-  initialize: function(request){
-    this.request = request;
-    var transport  = this.transport  = request.transport,
-        readyState = this.readyState = transport.readyState;
-
-    if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
-      this.status       = this.getStatus();
-      this.statusText   = this.getStatusText();
-      this.responseText = String.interpret(transport.responseText);
-      this.headerJSON   = this._getHeaderJSON();
-    }
-
-    if(readyState == 4) {
-      var xml = transport.responseXML;
-      this.responseXML  = xml === undefined ? null : xml;
-      this.responseJSON = this._getResponseJSON();
-    }
-  },
-
-  status:      0,
-  statusText: '',
-
-  getStatus: Ajax.Request.prototype.getStatus,
-
-  getStatusText: function() {
-    try {
-      return this.transport.statusText || '';
-    } catch (e) { return '' }
-  },
-
-  getHeader: Ajax.Request.prototype.getHeader,
-
-  getAllHeaders: function() {
-    try {
-      return this.getAllResponseHeaders();
-    } catch (e) { return null }
-  },
-
-  getResponseHeader: function(name) {
-    return this.transport.getResponseHeader(name);
-  },
-
-  getAllResponseHeaders: function() {
-    return this.transport.getAllResponseHeaders();
-  },
-
-  _getHeaderJSON: function() {
-    var json = this.getHeader('X-JSON');
-    if (!json) return null;
-    json = decodeURIComponent(escape(json));
-    try {
-      return json.evalJSON(this.request.options.sanitizeJSON);
-    } catch (e) {
-      this.request.dispatchException(e);
-    }
-  },
-
-  _getResponseJSON: function() {
-    var options = this.request.options;
-    if (!options.evalJSON || (options.evalJSON != 'force' &&
-      !(this.getHeader('Content-type') || '').include('application/json')))
-        return null;
-    try {
-      return this.transport.responseText.evalJSON(options.sanitizeJSON);
-    } catch (e) {
-      this.request.dispatchException(e);
-    }
-  }
-});
-
-Ajax.Updater = Class.create(Ajax.Request, {
-  initialize: function($super, container, url, options) {
-    this.container = {
-      success: (container.success || container),
-      failure: (container.failure || (container.success ? null : container))
-    };
-
-    options = options || { };
-    var onComplete = options.onComplete;
-    options.onComplete = (function(response, param) {
-      this.updateContent(response.responseText);
-      if (Object.isFunction(onComplete)) onComplete(response, param);
-    }).bind(this);
-
-    $super(url, options);
-  },
-
-  updateContent: function(responseText) {
-    var receiver = this.container[this.success() ? 'success' : 'failure'],
-        options = this.options;
-
-    if (!options.evalScripts) responseText = responseText.stripScripts();
-
-    if (receiver = $(receiver)) {
-      if (options.insertion) {
-        if (Object.isString(options.insertion)) {
-          var insertion = { }; insertion[options.insertion] = responseText;
-          receiver.insert(insertion);
-        }
-        else options.insertion(receiver, responseText);
-      }
-      else receiver.update(responseText);
-    }
-
-    if (this.success()) {
-      if (this.onComplete) this.onComplete.bind(this).defer();
-    }
-  }
-});
-
-Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
-  initialize: function($super, container, url, options) {
-    $super(options);
-    this.onComplete = this.options.onComplete;
-
-    this.frequency = (this.options.frequency || 2);
-    this.decay = (this.options.decay || 1);
-
-    this.updater = { };
-    this.container = container;
-    this.url = url;
-
-    this.start();
-  },
-
-  start: function() {
-    this.options.onComplete = this.updateComplete.bind(this);
-    this.onTimerEvent();
-  },
-
-  stop: function() {
-    this.updater.options.onComplete = undefined;
-    clearTimeout(this.timer);
-    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
-  },
-
-  updateComplete: function(response) {
-    if (this.options.decay) {
-      this.decay = (response.responseText == this.lastText ?
-        this.decay * this.options.decay : 1);
-
-      this.lastText = response.responseText;
-    }
-    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
-  },
-
-  onTimerEvent: function() {
-    this.updater = new Ajax.Updater(this.container, this.url, this.options);
-  }
-});
-function $(element) {
-  if (arguments.length > 1) {
-    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
-      elements.push($(arguments[i]));
-    return elements;
-  }
-  if (Object.isString(element))
-    element = document.getElementById(element);
-  return Element.extend(element);
-}
-
-if (Prototype.BrowserFeatures.XPath) {
-  document._getElementsByXPath = function(expression, parentElement) {
-    var results = [];
-    var query = document.evaluate(expression, $(parentElement) || document,
-      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
-    for (var i = 0, length = query.snapshotLength; i < length; i++)
-      results.push(Element.extend(query.snapshotItem(i)));
-    return results;
-  };
-}
-
-/*--------------------------------------------------------------------------*/
-
-if (!window.Node) var Node = { };
-
-if (!Node.ELEMENT_NODE) {
-  // DOM level 2 ECMAScript Language Binding
-  Object.extend(Node, {
-    ELEMENT_NODE: 1,
-    ATTRIBUTE_NODE: 2,
-    TEXT_NODE: 3,
-    CDATA_SECTION_NODE: 4,
-    ENTITY_REFERENCE_NODE: 5,
-    ENTITY_NODE: 6,
-    PROCESSING_INSTRUCTION_NODE: 7,
-    COMMENT_NODE: 8,
-    DOCUMENT_NODE: 9,
-    DOCUMENT_TYPE_NODE: 10,
-    DOCUMENT_FRAGMENT_NODE: 11,
-    NOTATION_NODE: 12
-  });
-}
-
-(function() {
-  var element = this.Element;
-  this.Element = function(tagName, attributes) {
-    attributes = attributes || { };
-    tagName = tagName.toLowerCase();
-    var cache = Element.cache;
-    if (Prototype.Browser.IE && attributes.name) {
-      tagName = '<' + tagName + ' name="' + attributes.name + '">';
-      delete attributes.name;
-      return Element.writeAttribute(document.createElement(tagName), attributes);
-    }
-    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
-    return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
-  };
-  Object.extend(this.Element, element || { });
-}).call(window);
-
-Element.cache = { };
-
-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, content) {
-    element = $(element);
-    if (content && content.toElement) content = content.toElement();
-    if (Object.isElement(content)) return element.update().insert(content);
-    content = Object.toHTML(content);
-    element.innerHTML = content.stripScripts();
-    content.evalScripts.bind(content).defer();
-    return element;
-  },
-
-  replace: function(element, content) {
-    element = $(element);
-    if (content && content.toElement) content = content.toElement();
-    else if (!Object.isElement(content)) {
-      content = Object.toHTML(content);
-      var range = element.ownerDocument.createRange();
-      range.selectNode(element);
-      content.evalScripts.bind(content).defer();
-      content = range.createContextualFragment(content.stripScripts());
-    }
-    element.parentNode.replaceChild(content, element);
-    return element;
-  },
-
-  insert: function(element, insertions) {
-    element = $(element);
-
-    if (Object.isString(insertions) || Object.isNumber(insertions) ||
-        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
-          insertions = {bottom:insertions};
-
-    var content, t, range;
-
-    for (position in insertions) {
-      content  = insertions[position];
-      position = position.toLowerCase();
-      t = Element._insertionTranslations[position];
-
-      if (content && content.toElement) content = content.toElement();
-      if (Object.isElement(content)) {
-        t.insert(element, content);
-        continue;
-      }
-
-      content = Object.toHTML(content);
-
-      range = element.ownerDocument.createRange();
-      t.initializeRange(element, range);
-      t.insert(element, range.createContextualFragment(content.stripScripts()));
-
-      content.evalScripts.bind(content).defer();
-    }
-
-    return element;
-  },
-
-  wrap: function(element, wrapper, attributes) {
-    element = $(element);
-    if (Object.isElement(wrapper))
-      $(wrapper).writeAttribute(attributes || { });
-    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
-    else wrapper = new Element('div', wrapper);
-    if (element.parentNode)
-      element.parentNode.replaceChild(wrapper, element);
-    wrapper.appendChild(element);
-    return wrapper;
-  },
-
-  inspect: function(element) {
-    element = $(element);
-    var result = '<' + element.tagName.toLowerCase();
-    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
-      var property = pair.first(), attribute = pair.last();
-      var value = (element[property] || '').toString();
-      if (value) result += ' ' + attribute + '=' + value.inspect(true);
-    });
-    return result + '>';
-  },
-
-  recursivelyCollect: function(element, property) {
-    element = $(element);
-    var elements = [];
-    while (element = element[property])
-      if (element.nodeType == 1)
-        elements.push(Element.extend(element));
-    return elements;
-  },
-
-  ancestors: function(element) {
-    return $(element).recursivelyCollect('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 = $(element);
-    return element.previousSiblings().reverse().concat(element.nextSiblings());
-  },
-
-  match: function(element, selector) {
-    if (Object.isString(selector))
-      selector = new Selector(selector);
-    return selector.match($(element));
-  },
-
-  up: function(element, expression, index) {
-    element = $(element);
-    if (arguments.length == 1) return $(element.parentNode);
-    var ancestors = element.ancestors();
-    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];
-  },
-
-  select: function() {
-    var args = $A(arguments), element = $(args.shift());
-    return Selector.findChildElements(element, args);
-  },
-
-  adjacent: function() {
-    var args = $A(arguments), element = $(args.shift());
-    return Selector.findChildElements(element.parentNode, args).without(element);
-  },
-
-  identify: function(element) {
-    element = $(element);
-    var id = element.readAttribute('id'), self = arguments.callee;
-    if (id) return id;
-    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
-    element.writeAttribute('id', id);
-    return id;
-  },
-
-  readAttribute: function(element, name) {
-    element = $(element);
-    if (Prototype.Browser.IE) {
-      var t = Element._attributeTranslations.read;
-      if (t.values[name]) return t.values[name](element, name);
-      if (t.names[name]) name = t.names[name];
-      if (name.include(':')) {
-        return (!element.attributes || !element.attributes[name]) ? null :
-         element.attributes[name].value;
-      }
-    }
-    return element.getAttribute(name);
-  },
-
-  writeAttribute: function(element, name, value) {
-    element = $(element);
-    var attributes = { }, t = Element._attributeTranslations.write;
-
-    if (typeof name == 'object') attributes = name;
-    else attributes[name] = value === undefined ? true : value;
-
-    for (var attr in attributes) {
-      var name = t.names[attr] || attr, value = attributes[attr];
-      if (t.values[attr]) name = t.values[attr](element, value);
-      if (value === false || value === null)
-        element.removeAttribute(name);
-      else if (value === true)
-        element.setAttribute(name, name);
-      else element.setAttribute(name, value);
-    }
-    return element;
-  },
-
-  getHeight: function(element) {
-    return $(element).getDimensions().height;
-  },
-
-  getWidth: function(element) {
-    return $(element).getDimensions().width;
-  },
-
-  classNames: function(element) {
-    return new Element.ClassNames(element);
-  },
-
-  hasClassName: function(element, className) {
-    if (!(element = $(element))) return;
-    var elementClassName = element.className;
-    return (elementClassName.length > 0 && (elementClassName == className ||
-      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
-  },
-
-  addClassName: function(element, className) {
-    if (!(element = $(element))) return;
-    if (!element.hasClassName(className))
-      element.className += (element.className ? ' ' : '') + className;
-    return element;
-  },
-
-  removeClassName: function(element, className) {
-    if (!(element = $(element))) return;
-    element.className = element.className.replace(
-      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
-    return element;
-  },
-
-  toggleClassName: function(element, className) {
-    if (!(element = $(element))) return;
-    return element[element.hasClassName(className) ?
-      'removeClassName' : 'addClassName'](className);
-  },
-
-  // 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);
-
-    if (element.compareDocumentPosition)
-      return (element.compareDocumentPosition(ancestor) & 8) === 8;
-
-    if (element.sourceIndex && !Prototype.Browser.Opera) {
-      var e = element.sourceIndex, a = ancestor.sourceIndex,
-       nextAncestor = ancestor.nextSibling;
-      if (!nextAncestor) {
-        do { ancestor = ancestor.parentNode; }
-        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
-      }
-      if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
-    }
-
-    while (element = element.parentNode)
-      if (element == ancestor) return true;
-    return false;
-  },
-
-  scrollTo: function(element) {
-    element = $(element);
-    var pos = element.cumulativeOffset();
-    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) {
-    element = $(element);
-    var elementStyle = element.style, match;
-    if (Object.isString(styles)) {
-      element.style.cssText += ';' + styles;
-      return styles.include('opacity') ?
-        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
-    }
-    for (var property in styles)
-      if (property == 'opacity') element.setOpacity(styles[property]);
-      else
-        elementStyle[(property == 'float' || property == 'cssFloat') ?
-          (elementStyle.styleFloat === undefined ? 'cssFloat' : 'styleFloat') :
-            property] = styles[property];
-
-    return element;
-  },
-
-  setOpacity: function(element, value) {
-    element = $(element);
-    element.style.opacity = (value == 1 || value === '') ? '' :
-      (value < 0.00001) ? 0 : value;
-    return element;
-  },
-
-  getDimensions: function(element) {
-    element = $(element);
-    var display = $(element).getStyle('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.getStyle(element, 'overflow') || 'auto';
-    if (element._overflow !== 'hidden')
-      element.style.overflow = 'hidden';
-    return element;
-  },
-
-  undoClipping: function(element) {
-    element = $(element);
-    if (!element._overflow) return element;
-    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
-    element._overflow = null;
-    return element;
-  },
-
-  cumulativeOffset: function(element) {
-    var valueT = 0, valueL = 0;
-    do {
-      valueT += element.offsetTop  || 0;
-      valueL += element.offsetLeft || 0;
-      element = element.offsetParent;
-    } while (element);
-    return Element._returnOffset(valueL, valueT);
-  },
-
-  positionedOffset: function(element) {
-    var valueT = 0, valueL = 0;
-    do {
-      valueT += element.offsetTop  || 0;
-      valueL += element.offsetLeft || 0;
-      element = element.offsetParent;
-      if (element) {
-        if (element.tagName == 'BODY') break;
-        var p = Element.getStyle(element, 'position');
-        if (p == 'relative' || p == 'absolute') break;
-      }
-    } while (element);
-    return Element._returnOffset(valueL, valueT);
-  },
-
-  absolutize: function(element) {
-    element = $(element);
-    if (element.getStyle('position') == 'absolute') return;
-    // Position.prepare(); // To be done manually by Scripty when it needs it.
-
-    var offsets = element.positionedOffset();
-    var top     = offsets[1];
-    var left    = offsets[0];
-    var width   = element.clientWidth;
-    var height  = element.clientHeight;
-
-    element._originalLeft   = left - parseFloat(element.style.left  || 0);
-    element._originalTop    = top  - parseFloat(element.style.top || 0);
-    element._originalWidth  = element.style.width;
-    element._originalHeight = element.style.height;
-
-    element.style.position = 'absolute';
-    element.style.top    = top + 'px';
-    element.style.left   = left + 'px';
-    element.style.width  = width + 'px';
-    element.style.height = height + 'px';
-    return element;
-  },
-
-  relativize: function(element) {
-    element = $(element);
-    if (element.getStyle('position') == 'relative') return;
-    // Position.prepare(); // To be done manually by Scripty when it needs it.
-
-    element.style.position = 'relative';
-    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
-    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
-
-    element.style.top    = top + 'px';
-    element.style.left   = left + 'px';
-    element.style.height = element._originalHeight;
-    element.style.width  = element._originalWidth;
-    return element;
-  },
-
-  cumulativeScrollOffset: function(element) {
-    var valueT = 0, valueL = 0;
-    do {
-      valueT += element.scrollTop  || 0;
-      valueL += element.scrollLeft || 0;
-      element = element.parentNode;
-    } while (element);
-    return Element._returnOffset(valueL, valueT);
-  },
-
-  getOffsetParent: function(element) {
-    if (element.offsetParent) return $(element.offsetParent);
-    if (element == document.body) return $(element);
-
-    while ((element = element.parentNode) && element != document.body)
-      if (Element.getStyle(element, 'position') != 'static')
-        return $(element);
-
-    return $(document.body);
-  },
-
-  viewportOffset: function(forElement) {
-    var valueT = 0, valueL = 0;
-
-    var element = forElement;
-    do {
-      valueT += element.offsetTop  || 0;
-      valueL += element.offsetLeft || 0;
-
-      // Safari fix
-      if (element.offsetParent == document.body &&
-        Element.getStyle(element, 'position') == 'absolute') break;
-
-    } while (element = element.offsetParent);
-
-    element = forElement;
-    do {
-      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
-        valueT -= element.scrollTop  || 0;
-        valueL -= element.scrollLeft || 0;
-      }
-    } while (element = element.parentNode);
-
-    return Element._returnOffset(valueL, valueT);
-  },
-
-  clonePosition: function(element, source) {
-    var options = Object.extend({
-      setLeft:    true,
-      setTop:     true,
-      setWidth:   true,
-      setHeight:  true,
-      offsetTop:  0,
-      offsetLeft: 0
-    }, arguments[2] || { });
-
-    // find page position of source
-    source = $(source);
-    var p = source.viewportOffset();
-
-    // find coordinate system to use
-    element = $(element);
-    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(element, 'position') == 'absolute') {
-      parent = element.getOffsetParent();
-      delta = parent.viewportOffset();
-    }
-
-    // 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)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
-    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
-    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
-    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
-    return element;
-  }
-};
-
-Element.Methods.identify.counter = 1;
-
-Object.extend(Element.Methods, {
-  getElementsBySelector: Element.Methods.select,
-  childElements: Element.Methods.immediateDescendants
-});
-
-Element._attributeTranslations = {
-  write: {
-    names: {
-      className: 'class',
-      htmlFor:   'for'
-    },
-    values: { }
-  }
-};
-
-
-if (!document.createRange || Prototype.Browser.Opera) {
-  Element.Methods.insert = function(element, insertions) {
-    element = $(element);
-
-    if (Object.isString(insertions) || Object.isNumber(insertions) ||
-        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
-          insertions = { bottom: insertions };
-
-    var t = Element._insertionTranslations, content, position, pos, tagName;
-
-    for (position in insertions) {
-      content  = insertions[position];
-      position = position.toLowerCase();
-      pos      = t[position];
-
-      if (content && content.toElement) content = content.toElement();
-      if (Object.isElement(content)) {
-        pos.insert(element, content);
-        continue;
-      }
-
-      content = Object.toHTML(content);
-      tagName = ((position == 'before' || position == 'after')
-        ? element.parentNode : element).tagName.toUpperCase();
-
-      if (t.tags[tagName]) {
-        var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
-        if (position == 'top' || position == 'after') fragments.reverse();
-        fragments.each(pos.insert.curry(element));
-      }
-      else element.insertAdjacentHTML(pos.adjacency, content.stripScripts());
-
-      content.evalScripts.bind(content).defer();
-    }
-
-    return element;
-  };
-}
-
-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);
-    }
-  };
-  Element.Methods._readAttribute = Element.Methods.readAttribute;
-  Element.Methods.readAttribute = function(element, attribute) {
-    if (attribute == 'title') return element.title;
-    return Element._readAttribute(element, attribute);
-  };
-}
-
-else if (Prototype.Browser.IE) {
-  $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
-    Element.Methods[method] = Element.Methods[method].wrap(
-      function(proceed, element) {
-        element = $(element);
-        var position = element.getStyle('position');
-        if (position != 'static') return proceed(element);
-        element.setStyle({ position: 'relative' });
-        var value = proceed(element);
-        element.setStyle({ position: position });
-        return value;
-      }
-    );
-  });
-
-  Element.Methods.getStyle = function(element, style) {
-    element = $(element);
-    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
-    var value = element.style[style];
-    if (!value && element.currentStyle) value = element.currentStyle[style];
-
-    if (style == 'opacity') {
-      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
-        if (value[1]) return parseFloat(value[1]) / 100;
-      return 1.0;
-    }
-
-    if (value == 'auto') {
-      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
-        return element['offset' + style.capitalize()] + 'px';
-      return null;
-    }
-    return value;
-  };
-
-  Element.Methods.setOpacity = function(element, value) {
-    function stripAlpha(filter){
-      return filter.replace(/alpha\([^\)]*\)/gi,'');
-    }
-    element = $(element);
-    var currentStyle = element.currentStyle;
-    if ((currentStyle && !currentStyle.hasLayout) ||
-      (!currentStyle && element.style.zoom == 'normal'))
-        element.style.zoom = 1;
-
-    var filter = element.getStyle('filter'), style = element.style;
-    if (value == 1 || value === '') {
-      (filter = stripAlpha(filter)) ?
-        style.filter = filter : style.removeAttribute('filter');
-      return element;
-    } else if (value < 0.00001) value = 0;
-    style.filter = stripAlpha(filter) +
-      'alpha(opacity=' + (value * 100) + ')';
-    return element;
-  };
-
-  Element._attributeTranslations = {
-    read: {
-      names: {
-        'class': 'className',
-        'for':   'htmlFor'
-      },
-      values: {
-        _getAttr: function(element, attribute) {
-          return element.getAttribute(attribute, 2);
-        },
-        _getAttrNode: function(element, attribute) {
-          var node = element.getAttributeNode(attribute);
-          return node ? node.value : "";
-        },
-        _getEv: function(element, attribute) {
-          var attribute = element.getAttribute(attribute);
-          return attribute ? attribute.toString().slice(23, -2) : null;
-        },
-        _flag: function(element, attribute) {
-          return $(element).hasAttribute(attribute) ? attribute : null;
-        },
-        style: function(element) {
-          return element.style.cssText.toLowerCase();
-        },
-        title: function(element) {
-          return element.title;
-        }
-      }
-    }
-  };
-
-  Element._attributeTranslations.write = {
-    names: Object.clone(Element._attributeTranslations.read.names),
-    values: {
-      checked: function(element, value) {
-        element.checked = !!value;
-      },
-
-      style: function(element, value) {
-        element.style.cssText = value ? value : '';
-      }
-    }
-  };
-
-  Element._attributeTranslations.has = {};
-
-  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
-      'encType maxLength readOnly longDesc').each(function(attr) {
-    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
-    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
-  });
-
-  (function(v) {
-    Object.extend(v, {
-      href:        v._getAttr,
-      src:         v._getAttr,
-      type:        v._getAttr,
-      action:      v._getAttrNode,
-      disabled:    v._flag,
-      checked:     v._flag,
-      readonly:    v._flag,
-      multiple:    v._flag,
-      onload:      v._getEv,
-      onunload:    v._getEv,
-      onclick:     v._getEv,
-      ondblclick:  v._getEv,
-      onmousedown: v._getEv,
-      onmouseup:   v._getEv,
-      onmouseover: v._getEv,
-      onmousemove: v._getEv,
-      onmouseout:  v._getEv,
-      onfocus:     v._getEv,
-      onblur:      v._getEv,
-      onkeypress:  v._getEv,
-      onkeydown:   v._getEv,
-      onkeyup:     v._getEv,
-      onsubmit:    v._getEv,
-      onreset:     v._getEv,
-      onselect:    v._getEv,
-      onchange:    v._getEv
-    });
-  })(Element._attributeTranslations.read.values);
-}
-
-else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
-  Element.Methods.setOpacity = function(element, value) {
-    element = $(element);
-    element.style.opacity = (value == 1) ? 0.999999 :
-      (value === '') ? '' : (value < 0.00001) ? 0 : value;
-    return element;
-  };
-}
-
-else if (Prototype.Browser.WebKit) {
-  Element.Methods.setOpacity = function(element, value) {
-    element = $(element);
-    element.style.opacity = (value == 1 || value === '') ? '' :
-      (value < 0.00001) ? 0 : value;
-
-    if (value == 1)
-      if(element.tagName == 'IMG' && element.width) {
-        element.width++; element.width--;
-      } else try {
-        var n = document.createTextNode(' ');
-        element.appendChild(n);
-        element.removeChild(n);
-      } catch (e) { }
-
-    return element;
-  };
-
-  // Safari returns margins on body which is incorrect if the child is absolutely
-  // positioned.  For performance reasons, redefine Position.cumulativeOffset for
-  // KHTML/WebKit only.
-  Element.Methods.cumulativeOffset = function(element) {
-    var valueT = 0, valueL = 0;
-    do {
-      valueT += element.offsetTop  || 0;
-      valueL += element.offsetLeft || 0;
-      if (element.offsetParent == document.body)
-        if (Element.getStyle(element, 'position') == 'absolute') break;
-
-      element = element.offsetParent;
-    } while (element);
-
-    return Element._returnOffset(valueL, valueT);
-  };
-}
-
-if (Prototype.Browser.IE || Prototype.Browser.Opera) {
-  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
-  Element.Methods.update = function(element, content) {
-    element = $(element);
-
-    if (content && content.toElement) content = content.toElement();
-    if (Object.isElement(content)) return element.update().insert(content);
-
-    content = Object.toHTML(content);
-    var tagName = element.tagName.toUpperCase();
-
-    if (tagName in Element._insertionTranslations.tags) {
-      $A(element.childNodes).each(function(node) { element.removeChild(node) });
-      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
-        .each(function(node) { element.appendChild(node) });
-    }
-    else element.innerHTML = content.stripScripts();
-
-    content.evalScripts.bind(content).defer();
-    return element;
-  };
-}
-
-if (document.createElement('div').outerHTML) {
-  Element.Methods.replace = function(element, content) {
-    element = $(element);
-
-    if (content && content.toElement) content = content.toElement();
-    if (Object.isElement(content)) {
-      element.parentNode.replaceChild(content, element);
-      return element;
-    }
-
-    content = Object.toHTML(content);
-    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
-
-    if (Element._insertionTranslations.tags[tagName]) {
-      var nextSibling = element.next();
-      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
-      parent.removeChild(element);
-      if (nextSibling)
-        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
-      else
-        fragments.each(function(node) { parent.appendChild(node) });
-    }
-    else element.outerHTML = content.stripScripts();
-
-    content.evalScripts.bind(content).defer();
-    return element;
-  };
-}
-
-Element._returnOffset = function(l, t) {
-  var result = [l, t];
-  result.left = l;
-  result.top = t;
-  return result;
-};
-
-Element._getContentFromAnonymousElement = function(tagName, html) {
-  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
-  div.innerHTML = t[0] + html + t[1];
-  t[2].times(function() { div = div.firstChild });
-  return $A(div.childNodes);
-};
-
-Element._insertionTranslations = {
-  before: {
-    adjacency: 'beforeBegin',
-    insert: function(element, node) {
-      element.parentNode.insertBefore(node, element);
-    },
-    initializeRange: function(element, range) {
-      range.setStartBefore(element);
-    }
-  },
-  top: {
-    adjacency: 'afterBegin',
-    insert: function(element, node) {
-      element.insertBefore(node, element.firstChild);
-    },
-    initializeRange: function(element, range) {
-      range.selectNodeContents(element);
-      range.collapse(true);
-    }
-  },
-  bottom: {
-    adjacency: 'beforeEnd',
-    insert: function(element, node) {
-      element.appendChild(node);
-    }
-  },
-  after: {
-    adjacency: 'afterEnd',
-    insert: function(element, node) {
-      element.parentNode.insertBefore(node, element.nextSibling);
-    },
-    initializeRange: function(element, range) {
-      range.setStartAfter(element);
-    }
-  },
-  tags: {
-    TABLE:  ['<table>',                '</table>',                   1],
-    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
-    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
-    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
-    SELECT: ['<select>',               '</select>',                  1]
-  }
-};
-
-(function() {
-  this.bottom.initializeRange = this.top.initializeRange;
-  Object.extend(this.tags, {
-    THEAD: this.tags.TBODY,
-    TFOOT: this.tags.TBODY,
-    TH:    this.tags.TD
-  });
-}).call(Element._insertionTranslations);
-
-Element.Methods.Simulated = {
-  hasAttribute: function(element, attribute) {
-    attribute = Element._attributeTranslations.has[attribute] || attribute;
-    var node = $(element).getAttributeNode(attribute);
-    return node && node.specified;
-  }
-};
-
-Element.Methods.ByTag = { };
-
-Object.extend(Element, Element.Methods);
-
-if (!Prototype.BrowserFeatures.ElementExtensions &&
-    document.createElement('div').__proto__) {
-  window.HTMLElement = { };
-  window.HTMLElement.prototype = document.createElement('div').__proto__;
-  Prototype.BrowserFeatures.ElementExtensions = true;
-}
-
-Element.extend = (function() {
-  if (Prototype.BrowserFeatures.SpecificElementExtensions)
-    return Prototype.K;
-
-  var Methods = { }, ByTag = Element.Methods.ByTag;
-
-  var extend = Object.extend(function(element) {
-    if (!element || element._extendedByPrototype ||
-        element.nodeType != 1 || element == window) return element;
-
-    var methods = Object.clone(Methods),
-      tagName = element.tagName, property, value;
-
-    // extend methods for specific tags
-    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
-
-    for (property in methods) {
-      value = methods[property];
-      if (Object.isFunction(value) && !(property in element))
-        element[property] = value.methodize();
-    }
-
-    element._extendedByPrototype = Prototype.emptyFunction;
-    return element;
-
-  }, {
-    refresh: function() {
-      // extend methods for all tags (Safari doesn't need this)
-      if (!Prototype.BrowserFeatures.ElementExtensions) {
-        Object.extend(Methods, Element.Methods);
-        Object.extend(Methods, Element.Methods.Simulated);
-      }
-    }
-  });
-
-  extend.refresh();
-  return extend;
-})();
-
-Element.hasAttribute = function(element, attribute) {
-  if (element.hasAttribute) return element.hasAttribute(attribute);
-  return Element.Methods.Simulated.hasAttribute(element, attribute);
-};
-
-Element.addMethods = function(methods) {
-  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
-
-  if (!methods) {
-    Object.extend(Form, Form.Methods);
-    Object.extend(Form.Element, Form.Element.Methods);
-    Object.extend(Element.Methods.ByTag, {
-      "FORM":     Object.clone(Form.Methods),
-      "INPUT":    Object.clone(Form.Element.Methods),
-      "SELECT":   Object.clone(Form.Element.Methods),
-      "TEXTAREA": Object.clone(Form.Element.Methods)
-    });
-  }
-
-  if (arguments.length == 2) {
-    var tagName = methods;
-    methods = arguments[1];
-  }
-
-  if (!tagName) Object.extend(Element.Methods, methods || { });
-  else {
-    if (Object.isArray(tagName)) tagName.each(extend);
-    else extend(tagName);
-  }
-
-  function extend(tagName) {
-    tagName = tagName.toUpperCase();
-    if (!Element.Methods.ByTag[tagName])
-      Element.Methods.ByTag[tagName] = { };
-    Object.extend(Element.Methods.ByTag[tagName], methods);
-  }
-
-  function copy(methods, destination, onlyIfAbsent) {
-    onlyIfAbsent = onlyIfAbsent || false;
-    for (var property in methods) {
-      var value = methods[property];
-      if (!Object.isFunction(value)) continue;
-      if (!onlyIfAbsent || !(property in destination))
-        destination[property] = value.methodize();
-    }
-  }
-
-  function findDOMClass(tagName) {
-    var klass;
-    var trans = {
-      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
-      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
-      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
-      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
-      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
-      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
-      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
-      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
-      "FrameSet", "IFRAME": "IFrame"
-    };
-    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
-    if (window[klass]) return window[klass];
-    klass = 'HTML' + tagName + 'Element';
-    if (window[klass]) return window[klass];
-    klass = 'HTML' + tagName.capitalize() + 'Element';
-    if (window[klass]) return window[klass];
-
-    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 (Object.isUndefined(klass)) continue;
-      copy(T[tag], klass.prototype);
-    }
-  }
-
-  Object.extend(Element, Element.Methods);
-  delete Element.ByTag;
-
-  if (Element.extend.refresh) Element.extend.refresh();
-  Element.cache = { };
-};
-
-document.viewport = {
-  getDimensions: function() {
-    var dimensions = { };
-    $w('width height').each(function(d) {
-      var D = d.capitalize();
-      dimensions[d] = self['inner' + D] ||
-       (document.documentElement['client' + D] || document.body['client' + D]);
-    });
-    return dimensions;
-  },
-
-  getWidth: function() {
-    return this.getDimensions().width;
-  },
-
-  getHeight: function() {
-    return this.getDimensions().height;
-  },
-
-  getScrollOffsets: function() {
-    return Element._returnOffset(
-      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
-      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
-  }
-};
-/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
- * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
- * license.  Please see http://www.yui-ext.com/ for more information. */
-
-var Selector = Class.create({
-  initialize: function(expression) {
-    this.expression = expression.strip();
-    this.compileMatcher();
-  },
-
-  compileMatcher: function() {
-    // Selectors with namespaced attributes can't use the XPath version
-    if (Prototype.BrowserFeatures.XPath && !(/(\[[\w-]*?:|:checked)/).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(Object.isFunction(c[i]) ? 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(Object.isFunction(x[i]) ? 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) {
-    this.tokens = [];
-
-    var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
-    var le, p, m;
-
-    while (e && le !== e && (/\S/).test(e)) {
-      le = e;
-      for (var i in ps) {
-        p = ps[i];
-        if (m = e.match(p)) {
-          // use the Selector.assertions methods unless the selector
-          // is too complex.
-          if (as[i]) {
-            this.tokens.push([i, Object.clone(m)]);
-            e = e.replace(m[0], '');
-          } else {
-            // reluctantly do a document-wide search
-            // and look for a match in the array
-            return this.findElements(document).include(element);
-          }
-        }
-      }
-    }
-
-    var match = true, name, matches;
-    for (var i = 0, token; token = this.tokens[i]; i++) {
-      name = token[0], matches = token[1];
-      if (!Selector.assertions[name](element, matches)) {
-        match = false; break;
-      }
-    }
-
-    return match;
-  },
-
-  toString: function() {
-    return this.expression;
-  },
-
-  inspect: function() {
-    return "#<Selector:" + this.expression.inspect() + ">";
-  }
-});
-
-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 (Object.isFunction(h)) return h(m);
-      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
-    },
-    operators: {
-      '=':  "[@#{1}='#{3}']",
-      '!=': "[@#{1}!='#{3}']",
-      '^=': "[starts-with(@#{1}, '#{3}')]",
-      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
-      '*=': "[contains(@#{1}, '#{3}')]",
-      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
-      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
-    },
-    pseudos: {
-      'first-child': '[not(preceding-sibling::*)]',
-      'last-child':  '[not(following-sibling::*)]',
-      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
-      'empty':       "[count(*) = 0 and (count(text()) = 0 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 = Object.isFunction(x[i]) ? 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:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
-  },
-
-  // for Selector.match and Element#match
-  assertions: {
-    tagName: function(element, matches) {
-      return matches[1].toUpperCase() == element.tagName.toUpperCase();
-    },
-
-    className: function(element, matches) {
-      return Element.hasClassName(element, matches[1]);
-    },
-
-    id: function(element, matches) {
-      return element.id === matches[1];
-    },
-
-    attrPresence: function(element, matches) {
-      return Element.hasAttribute(element, matches[1]);
-    },
-
-    attr: function(element, matches) {
-      var nodeValue = Element.readAttribute(element, matches[1]);
-      return Selector.operators[matches[2]](nodeValue, matches[3]);
-    }
-  },
-
-  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--) {
-          var 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 (!targetNode) return [];
-      if (!nodes && root == document) return [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) {
-      if (!nodes) nodes = root.getElementsByTagName("*");
-      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 (Object.isNumber(expression)) {
-      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, options) {
-    if (typeof options != 'object') options = { hash: !!options };
-    else if (options.hash === undefined) options.hash = true;
-    var key, value, submitted = false, submit = options.submit;
-
-    var data = elements.inject({ }, function(result, element) {
-      if (!element.disabled && element.name) {
-        key = element.name; value = $(element).getValue();
-        if (value != null && (element.type != 'submit' || (!submitted &&
-            submit !== false && (!submit || key == submit) && (submitted = true)))) {
-          if (key in result) {
-            // a key is already present; construct an array of values
-            if (!Object.isArray(result[key])) result[key] = [result[key]];
-            result[key].push(value);
-          }
-          else result[key] = value;
-        }
-      }
-      return result;
-    });
-
-    return options.hash ? data : Object.toQueryString(data);
-  }
-};
-
-Form.Methods = {
-  serialize: function(form, options) {
-    return Form.serializeElements(Form.getElements(form), options);
-  },
-
-  getElements: function(form) {
-    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) {
-    var elements = $(form).getElements().findAll(function(element) {
-      return 'hidden' != element.type && !element.disabled;
-    });
-    var firstByIndex = elements.findAll(function(element) {
-      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
-    }).sortBy(function(element) { return element.tabIndex }).first();
-
-    return firstByIndex ? firstByIndex : elements.find(function(element) {
-      return ['input', 'select', 'textarea'].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, action = form.readAttribute('action') || '';
-    if (action.blank()) action = window.location.href;
-    options.parameters = form.serialize(true);
-
-    if (params) {
-      if (Object.isString(params)) params = params.toQueryParams();
-      Object.extend(options.parameters, params);
-    }
-
-    if (form.hasAttribute('method') && !options.method)
-      options.method = form.method;
-
-    return new Ajax.Request(action, options);
-  }
-};
-
-/*--------------------------------------------------------------------------*/
-
-Form.Element = {
-  focus: function(element) {
-    $(element).focus();
-    return element;
-  },
-
-  select: function(element) {
-    $(element).select();
-    return element;
-  }
-};
-
-Form.Element.Methods = {
-  serialize: function(element) {
-    element = $(element);
-    if (!element.disabled && element.name) {
-      var value = element.getValue();
-      if (value != undefined) {
-        var pair = { };
-        pair[element.name] = value;
-        return Object.toQueryString(pair);
-      }
-    }
-    return '';
-  },
-
-  getValue: function(element) {
-    element = $(element);
-    var method = element.tagName.toLowerCase();
-    return Form.Element.Serializers[method](element);
-  },
-
-  setValue: function(element, value) {
-    element = $(element);
-    var method = element.tagName.toLowerCase();
-    Form.Element.Serializers[method](element, value);
-    return element;
-  },
-
-  clear: function(element) {
-    $(element).value = '';
-    return element;
-  },
-
-  present: function(element) {
-    return $(element).value != '';
-  },
-
-  activate: function(element) {
-    element = $(element);
-    try {
-      element.focus();
-      if (element.select && (element.tagName.toLowerCase() != 'input' ||
-          !['button', 'reset', 'submit'].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, value) {
-    switch (element.type.toLowerCase()) {
-      case 'checkbox':
-      case 'radio':
-        return Form.Element.Serializers.inputSelector(element, value);
-      default:
-        return Form.Element.Serializers.textarea(element, value);
-    }
-  },
-
-  inputSelector: function(element, value) {
-    if (value === undefined) return element.checked ? element.value : null;
-    else element.checked = !!value;
-  },
-
-  textarea: function(element, value) {
-    if (value === undefined) return element.value;
-    else element.value = value;
-  },
-
-  select: function(element, index) {
-    if (index === undefined)
-      return this[element.type == 'select-one' ?
-        'selectOne' : 'selectMany'](element);
-    else {
-      var opt, value, single = !Object.isArray(index);
-      for (var i = 0, length = element.length; i < length; i++) {
-        opt = element.options[i];
-        value = this.optionValue(opt);
-        if (single) {
-          if (value == index) {
-            opt.selected = true;
-            return;
-          }
-        }
-        else opt.selected = index.include(value);
-      }
-    }
-  },
-
-  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 = Class.create(PeriodicalExecuter, {
-  initialize: function($super, element, frequency, callback) {
-    $super(callback, frequency);
-    this.element   = $(element);
-    this.lastValue = this.getValue();
-  },
-
-  execute: function() {
-    var value = this.getValue();
-    if (Object.isString(this.lastValue) && Object.isString(value) ?
-        this.lastValue != value : String(this.lastValue) != String(value)) {
-      this.callback(this.element, value);
-      this.lastValue = value;
-    }
-  }
-});
-
-Form.Element.Observer = Class.create(Abstract.TimedObserver, {
-  getValue: function() {
-    return Form.Element.getValue(this.element);
-  }
-});
-
-Form.Observer = Class.create(Abstract.TimedObserver, {
-  getValue: function() {
-    return Form.serialize(this.element);
-  }
-});
-
-/*--------------------------------------------------------------------------*/
-
-Abstract.EventObserver = Class.create({
-  initialize: function(element, callback) {
-    this.element  = $(element);
-    this.callback = callback;
-
-    this.lastValue = this.getValue();
-    if (this.element.tagName.toLowerCase() == 'form')
-      this.registerFormCallbacks();
-    else
-      this.registerCallback(this.element);
-  },
-
-  onElementEvent: function() {
-    var value = this.getValue();
-    if (this.lastValue != value) {
-      this.callback(this.element, value);
-      this.lastValue = value;
-    }
-  },
-
-  registerFormCallbacks: function() {
-    Form.getElements(this.element).each(this.registerCallback, this);
-  },
-
-  registerCallback: function(element) {
-    if (element.type) {
-      switch (element.type.toLowerCase()) {
-        case 'checkbox':
-        case 'radio':
-          Event.observe(element, 'click', this.onElementEvent.bind(this));
-          break;
-        default:
-          Event.observe(element, 'change', this.onElementEvent.bind(this));
-          break;
-      }
-    }
-  }
-});
-
-Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
-  getValue: function() {
-    return Form.Element.getValue(this.element);
-  }
-});
-
-Form.EventObserver = Class.create(Abstract.EventObserver, {
-  getValue: function() {
-    return Form.serialize(this.element);
-  }
-});
-if (!window.Event) var Event = { };
-
-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,
-  KEY_INSERT:   45,
-
-  cache: { },
-
-  relatedTarget: function(event) {
-    var element;
-    switch(event.type) {
-      case 'mouseover': element = event.fromElement; break;
-      case 'mouseout':  element = event.toElement;   break;
-      default: return null;
-    }
-    return Element.extend(element);
-  }
-});
-
-Event.Methods = (function() {
-  var isButton;
-
-  if (Prototype.Browser.IE) {
-    var buttonMap = { 0: 1, 1: 4, 2: 2 };
-    isButton = function(event, code) {
-      return event.button == buttonMap[code];
-    };
-
-  } else if (Prototype.Browser.WebKit) {
-    isButton = function(event, code) {
-      switch (code) {
-        case 0: return event.which == 1 && !event.metaKey;
-        case 1: return event.which == 1 && event.metaKey;
-        default: return false;
-      }
-    };
-
-  } else {
-    isButton = function(event, code) {
-      return event.which ? (event.which === code + 1) : (event.button === code);
-    };
-  }
-
-  return {
-    isLeftClick:   function(event) { return isButton(event, 0) },
-    isMiddleClick: function(event) { return isButton(event, 1) },
-    isRightClick:  function(event) { return isButton(event, 2) },
-
-    element: function(event) {
-      var node = Event.extend(event).target;
-      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
-    },
-
-    findElement: function(event, expression) {
-      var element = Event.element(event);
-      return element.match(expression) ? element : element.up(expression);
-    },
-
-    pointer: function(event) {
-      return {
-        x: event.pageX || (event.clientX +
-          (document.documentElement.scrollLeft || document.body.scrollLeft)),
-        y: event.pageY || (event.clientY +
-          (document.documentElement.scrollTop || document.body.scrollTop))
-      };
-    },
-
-    pointerX: function(event) { return Event.pointer(event).x },
-    pointerY: function(event) { return Event.pointer(event).y },
-
-    stop: function(event) {
-      Event.extend(event);
-      event.preventDefault();
-      event.stopPropagation();
-      event.stopped = true;
-    }
-  };
-})();
-
-Event.extend = (function() {
-  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
-    m[name] = Event.Methods[name].methodize();
-    return m;
-  });
-
-  if (Prototype.Browser.IE) {
-    Object.extend(methods, {
-      stopPropagation: function() { this.cancelBubble = true },
-      preventDefault:  function() { this.returnValue = false },
-      inspect: function() { return "[object Event]" }
-    });
-
-    return function(event) {
-      if (!event) return false;
-      if (event._extendedByPrototype) return event;
-
-      event._extendedByPrototype = Prototype.emptyFunction;
-      var pointer = Event.pointer(event);
-      Object.extend(event, {
-        target: event.srcElement,
-        relatedTarget: Event.relatedTarget(event),
-        pageX:  pointer.x,
-        pageY:  pointer.y
-      });
-      return Object.extend(event, methods);
-    };
-
-  } else {
-    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
-    Object.extend(Event.prototype, methods);
-    return Prototype.K;
-  }
-})();
-
-Object.extend(Event, (function() {
-  var cache = Event.cache;
-
-  function getEventID(element) {
-    if (element._eventID) return element._eventID;
-    arguments.callee.id = arguments.callee.id || 1;
-    return element._eventID = ++arguments.callee.id;
-  }
-
-  function getDOMEventName(eventName) {
-    if (eventName && eventName.include(':')) return "dataavailable";
-    return eventName;
-  }
-
-  function getCacheForID(id) {
-    return cache[id] = cache[id] || { };
-  }
-
-  function getWrappersForEventName(id, eventName) {
-    var c = getCacheForID(id);
-    return c[eventName] = c[eventName] || [];
-  }
-
-  function createWrapper(element, eventName, handler) {
-    var id = getEventID(element);
-    var c = getWrappersForEventName(id, eventName);
-    if (c.pluck("handler").include(handler)) return false;
-
-    var wrapper = function(event) {
-      if (!Event || !Event.extend ||
-        (event.eventName && event.eventName != eventName))
-          return false;
-
-      Event.extend(event);
-      handler.call(element, event)
-    };
-
-    wrapper.handler = handler;
-    c.push(wrapper);
-    return wrapper;
-  }
-
-  function findWrapper(id, eventName, handler) {
-    var c = getWrappersForEventName(id, eventName);
-    return c.find(function(wrapper) { return wrapper.handler == handler });
-  }
-
-  function destroyWrapper(id, eventName, handler) {
-    var c = getCacheForID(id);
-    if (!c[eventName]) return false;
-    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
-  }
-
-  function destroyCache() {
-    for (var id in cache)
-      for (var eventName in cache[id])
-        cache[id][eventName] = null;
-  }
-
-  if (window.attachEvent) {
-    window.attachEvent("onunload", destroyCache);
-  }
-
-  return {
-    observe: function(element, eventName, handler) {
-      element = $(element);
-      var name = getDOMEventName(eventName);
-
-      var wrapper = createWrapper(element, eventName, handler);
-      if (!wrapper) return element;
-
-      if (element.addEventListener) {
-        element.addEventListener(name, wrapper, false);
-      } else {
-        element.attachEvent("on" + name, wrapper);
-      }
-
-      return element;
-    },
-
-    stopObserving: function(element, eventName, handler) {
-      element = $(element);
-      var id = getEventID(element), name = getDOMEventName(eventName);
-
-      if (!handler && eventName) {
-        getWrappersForEventName(id, eventName).each(function(wrapper) {
-          element.stopObserving(eventName, wrapper.handler);
-        });
-        return element;
-
-      } else if (!eventName) {
-        Object.keys(getCacheForID(id)).each(function(eventName) {
-          element.stopObserving(eventName);
-        });
-        return element;
-      }
-
-      var wrapper = findWrapper(id, eventName, handler);
-      if (!wrapper) return element;
-
-      if (element.removeEventListener) {
-        element.removeEventListener(name, wrapper, false);
-      } else {
-        element.detachEvent("on" + name, wrapper);
-      }
-
-      destroyWrapper(id, eventName, handler);
-
-      return element;
-    },
-
-    fire: function(element, eventName, memo) {
-      element = $(element);
-      if (element == document && document.createEvent && !element.dispatchEvent)
-        element = document.documentElement;
-
-      if (document.createEvent) {
-        var event = document.createEvent("HTMLEvents");
-        event.initEvent("dataavailable", true, true);
-      } else {
-        var event = document.createEventObject();
-        event.eventType = "ondataavailable";
-      }
-
-      event.eventName = eventName;
-      event.memo = memo || { };
-
-      if (document.createEvent) {
-        element.dispatchEvent(event);
-      } else {
-        element.fireEvent(event.eventType, event);
-      }
-
-      return event;
-    }
-  };
-})());
-
-Object.extend(Event, Event.Methods);
-
-Element.addMethods({
-  fire:          Event.fire,
-  observe:       Event.observe,
-  stopObserving: Event.stopObserving
-});
-
-Object.extend(document, {
-  fire:          Element.Methods.fire.methodize(),
-  observe:       Element.Methods.observe.methodize(),
-  stopObserving: Element.Methods.stopObserving.methodize()
-});
-
-(function() {
-  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
-     Matthias Miller, Dean Edwards and John Resig. */
-
-  var timer, fired = false;
-
-  function fireContentLoadedEvent() {
-    if (fired) return;
-    if (timer) window.clearInterval(timer);
-    document.fire("dom:loaded");
-    fired = true;
-  }
-
-  if (document.addEventListener) {
-    if (Prototype.Browser.WebKit) {
-      timer = window.setInterval(function() {
-        if (/loaded|complete/.test(document.readyState))
-          fireContentLoadedEvent();
-      }, 0);
-
-      Event.observe(window, "load", fireContentLoadedEvent);
-
-    } else {
-      document.addEventListener("DOMContentLoaded",
-        fireContentLoadedEvent, false);
-    }
-
-  } else {
-    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
-    $("__onDOMContentLoaded").onreadystatechange = function() {
-      if (this.readyState == "complete") {
-        this.onreadystatechange = null;
-        fireContentLoadedEvent();
-      }
-    };
-  }
-})();
-/*------------------------------- DEPRECATED -------------------------------*/
-
-Hash.toQueryString = Object.toQueryString;
-
-var Toggle = { display: Element.toggle };
-
-Element.Methods.childOf = Element.Methods.descendantOf;
-
-var Insertion = {
-  Before: function(element, content) {
-    return Element.insert(element, {before:content});
-  },
-
-  Top: function(element, content) {
-    return Element.insert(element, {top:content});
-  },
-
-  Bottom: function(element, content) {
-    return Element.insert(element, {bottom:content});
-  },
-
-  After: function(element, content) {
-    return Element.insert(element, {after:content});
-  }
-};
-
-var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
-
-// This should be moved to script.aculo.us; notice the deprecated methods
-// further below, that map to the newer Element methods.
-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;
-  },
-
-  // 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 = Element.cumulativeOffset(element);
-
-    return (y >= this.offset[1] &&
-            y <  this.offset[1] + element.offsetHeight &&
-            x >= this.offset[0] &&
-            x <  this.offset[0] + element.offsetWidth);
-  },
-
-  withinIncludingScrolloffsets: function(element, x, y) {
-    var offsetcache = Element.cumulativeScrollOffset(element);
-
-    this.xcomp = x + offsetcache[0] - this.deltaX;
-    this.ycomp = y + offsetcache[1] - this.deltaY;
-    this.offset = Element.cumulativeOffset(element);
-
-    return (this.ycomp >= this.offset[1] &&
-            this.ycomp <  this.offset[1] + element.offsetHeight &&
-            this.xcomp >= this.offset[0] &&
-            this.xcomp <  this.offset[0] + element.offsetWidth);
-  },
-
-  // 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;
-  },
-
-  // Deprecation layer -- use newer Element methods now (1.5.2).
-
-  cumulativeOffset: Element.Methods.cumulativeOffset,
-
-  positionedOffset: Element.Methods.positionedOffset,
-
-  absolutize: function(element) {
-    Position.prepare();
-    return Element.absolutize(element);
-  },
-
-  relativize: function(element) {
-    Position.prepare();
-    return Element.relativize(element);
-  },
-
-  realOffset: Element.Methods.cumulativeScrollOffset,
-
-  offsetParent: Element.Methods.getOffsetParent,
-
-  page: Element.Methods.viewportOffset,
-
-  clone: function(source, target, options) {
-    options = options || { };
-    return Element.clonePosition(target, source, options);
-  }
-};
-
-/*--------------------------------------------------------------------------*/
-
-if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
-  function iter(name) {
-    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
-  }
-
-  instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
-  function(element, className) {
-    className = className.toString().strip();
-    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
-    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
-  } : function(element, className) {
-    className = className.toString().strip();
-    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
-    if (!classNames && !className) return elements;
-
-    var nodes = $(element).getElementsByTagName('*');
-    className = ' ' + className + ' ';
-
-    for (var i = 0, child, cn; child = nodes[i]; i++) {
-      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
-          (classNames && classNames.all(function(name) {
-            return !name.toString().blank() && cn.include(' ' + name + ' ');
-          }))))
-        elements.push(Element.extend(child));
-    }
-    return elements;
-  };
-
-  return function(className, parentElement) {
-    return $(parentElement || document.body).getElementsByClassName(className);
-  };
-}(Element.Methods);
-
-/*--------------------------------------------------------------------------*/
-
-Element.ClassNames = Class.create();
-Element.ClassNames.prototype = {
-  initialize: function(element) {
-    this.element = $(element);
-  },
-
-  _each: function(iterator) {
-    this.element.className.split(/\s+/).select(function(name) {
-      return name.length > 0;
-    })._each(iterator);
-  },
-
-  set: function(className) {
-    this.element.className = className;
-  },
-
-  add: function(classNameToAdd) {
-    if (this.include(classNameToAdd)) return;
-    this.set($A(this).concat(classNameToAdd).join(' '));
-  },
-
-  remove: function(classNameToRemove) {
-    if (!this.include(classNameToRemove)) return;
-    this.set($A(this).without(classNameToRemove).join(' '));
-  },
-
-  toString: function() {
-    return $A(this).join(' ');
-  }
-};
-
-Object.extend(Element.ClassNames.prototype, Enumerable);
-
-/*--------------------------------------------------------------------------*/
-
-Element.addMethods();
\ No newline at end of file
diff --git a/ext/json/ext/generator/generator.c b/ext/json/ext/generator/generator.c
index 596f33f..73a7eb3 100644
--- a/ext/json/ext/generator/generator.c
+++ b/ext/json/ext/generator/generator.c
@@ -1313,7 +1313,7 @@ static VALUE cState_allow_nan_p(VALUE self)
 /*
  * call-seq: ascii_only?
  *
- * Returns true, if NaN, Infinity, and -Infinity should be generated, otherwise
+ * Returns true, if only ASCII characters should be generated. Otherwise
  * returns false.
  */
 static VALUE cState_ascii_only_p(VALUE self)
@@ -1381,6 +1381,7 @@ static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_l
  */
 void Init_generator(void)
 {
+#undef rb_intern
     rb_require("json/common");
 
     mJSON = rb_define_module("JSON");
diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index 3a9dc93..63b895e 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -91,19 +91,20 @@ static int convert_UTF32_to_UTF8(char *buf, UTF32 ch)
 
 static VALUE mJSON, mExt, cParser, eParserError, eNestingError;
 static VALUE CNaN, CInfinity, CMinusInfinity;
+static VALUE cBigDecimal = Qundef;
 
 static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions,
           i_chr, i_max_nesting, i_allow_nan, i_symbolize_names,
           i_object_class, i_array_class, i_decimal_class, i_key_p,
           i_deep_const_get, i_match, i_match_string, i_aset, i_aref,
-          i_leftshift, i_new;
+          i_leftshift, i_new, i_BigDecimal;
 
 
-#line 125 "parser.rl"
+#line 126 "parser.rl"
 
 
 
-#line 107 "parser.c"
+#line 108 "parser.c"
 enum {JSON_object_start = 1};
 enum {JSON_object_first_final = 27};
 enum {JSON_object_error = 0};
@@ -111,7 +112,7 @@ enum {JSON_object_error = 0};
 enum {JSON_object_en_main = 1};
 
 
-#line 166 "parser.rl"
+#line 167 "parser.rl"
 
 
 static char *JSON_parse_object(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting)
@@ -127,14 +128,14 @@ static char *JSON_parse_object(JSON_Parser *json, char *p, char *pe, VALUE *resu
     *result = NIL_P(object_class) ? rb_hash_new() : rb_class_new_instance(0, 0, object_class);
 
 
-#line 131 "parser.c"
+#line 132 "parser.c"
 	{
 	cs = JSON_object_start;
 	}
 
-#line 181 "parser.rl"
+#line 182 "parser.rl"
 
-#line 138 "parser.c"
+#line 139 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -162,7 +163,7 @@ case 2:
 		goto st2;
 	goto st0;
 tr2:
-#line 148 "parser.rl"
+#line 149 "parser.rl"
 	{
         char *np;
         json->parsing_name = 1;
@@ -175,7 +176,7 @@ st3:
 	if ( ++p == pe )
 		goto _test_eof3;
 case 3:
-#line 179 "parser.c"
+#line 180 "parser.c"
 	switch( (*p) ) {
 		case 13: goto st3;
 		case 32: goto st3;
@@ -242,7 +243,7 @@ case 8:
 		goto st8;
 	goto st0;
 tr11:
-#line 133 "parser.rl"
+#line 134 "parser.rl"
 	{
         VALUE v = Qnil;
         char *np = JSON_parse_value(json, p, pe, &v, current_nesting);
@@ -262,7 +263,7 @@ st9:
 	if ( ++p == pe )
 		goto _test_eof9;
 case 9:
-#line 266 "parser.c"
+#line 267 "parser.c"
 	switch( (*p) ) {
 		case 13: goto st9;
 		case 32: goto st9;
@@ -351,14 +352,14 @@ case 18:
 		goto st9;
 	goto st18;
 tr4:
-#line 156 "parser.rl"
+#line 157 "parser.rl"
 	{ p--; {p++; cs = 27; goto _out;} }
 	goto st27;
 st27:
 	if ( ++p == pe )
 		goto _test_eof27;
 case 27:
-#line 362 "parser.c"
+#line 363 "parser.c"
 	goto st0;
 st19:
 	if ( ++p == pe )
@@ -456,7 +457,7 @@ case 26:
 	_out: {}
 	}
 
-#line 182 "parser.rl"
+#line 183 "parser.rl"
 
     if (cs >= JSON_object_first_final) {
         if (json->create_additions) {
@@ -481,7 +482,7 @@ case 26:
 
 
 
-#line 485 "parser.c"
+#line 486 "parser.c"
 enum {JSON_value_start = 1};
 enum {JSON_value_first_final = 29};
 enum {JSON_value_error = 0};
@@ -489,7 +490,7 @@ enum {JSON_value_error = 0};
 enum {JSON_value_en_main = 1};
 
 
-#line 282 "parser.rl"
+#line 283 "parser.rl"
 
 
 static char *JSON_parse_value(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting)
@@ -497,14 +498,14 @@ static char *JSON_parse_value(JSON_Parser *json, char *p, char *pe, VALUE *resul
     int cs = EVIL;
 
 
-#line 501 "parser.c"
+#line 502 "parser.c"
 	{
 	cs = JSON_value_start;
 	}
 
-#line 289 "parser.rl"
+#line 290 "parser.rl"
 
-#line 508 "parser.c"
+#line 509 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -538,14 +539,14 @@ st0:
 cs = 0;
 	goto _out;
 tr2:
-#line 234 "parser.rl"
+#line 235 "parser.rl"
 	{
         char *np = JSON_parse_string(json, p, pe, result);
         if (np == NULL) { p--; {p++; cs = 29; goto _out;} } else {p = (( np))-1;}
     }
 	goto st29;
 tr3:
-#line 239 "parser.rl"
+#line 240 "parser.rl"
 	{
         char *np;
         if(pe > p + 8 && !strncmp(MinusInfinity, p, 9)) {
@@ -565,7 +566,7 @@ tr3:
     }
 	goto st29;
 tr7:
-#line 257 "parser.rl"
+#line 258 "parser.rl"
 	{
         char *np;
         np = JSON_parse_array(json, p, pe, result, current_nesting + 1);
@@ -573,7 +574,7 @@ tr7:
     }
 	goto st29;
 tr11:
-#line 263 "parser.rl"
+#line 264 "parser.rl"
 	{
         char *np;
         np =  JSON_parse_object(json, p, pe, result, current_nesting + 1);
@@ -581,7 +582,7 @@ tr11:
     }
 	goto st29;
 tr25:
-#line 227 "parser.rl"
+#line 228 "parser.rl"
 	{
         if (json->allow_nan) {
             *result = CInfinity;
@@ -591,7 +592,7 @@ tr25:
     }
 	goto st29;
 tr27:
-#line 220 "parser.rl"
+#line 221 "parser.rl"
 	{
         if (json->allow_nan) {
             *result = CNaN;
@@ -601,19 +602,19 @@ tr27:
     }
 	goto st29;
 tr31:
-#line 214 "parser.rl"
+#line 215 "parser.rl"
 	{
         *result = Qfalse;
     }
 	goto st29;
 tr34:
-#line 211 "parser.rl"
+#line 212 "parser.rl"
 	{
         *result = Qnil;
     }
 	goto st29;
 tr37:
-#line 217 "parser.rl"
+#line 218 "parser.rl"
 	{
         *result = Qtrue;
     }
@@ -622,9 +623,9 @@ st29:
 	if ( ++p == pe )
 		goto _test_eof29;
 case 29:
-#line 269 "parser.rl"
+#line 270 "parser.rl"
 	{ p--; {p++; cs = 29; goto _out;} }
-#line 628 "parser.c"
+#line 629 "parser.c"
 	switch( (*p) ) {
 		case 13: goto st29;
 		case 32: goto st29;
@@ -865,7 +866,7 @@ case 28:
 	_out: {}
 	}
 
-#line 290 "parser.rl"
+#line 291 "parser.rl"
 
     if (cs >= JSON_value_first_final) {
         return p;
@@ -875,7 +876,7 @@ case 28:
 }
 
 
-#line 879 "parser.c"
+#line 880 "parser.c"
 enum {JSON_integer_start = 1};
 enum {JSON_integer_first_final = 3};
 enum {JSON_integer_error = 0};
@@ -883,7 +884,7 @@ enum {JSON_integer_error = 0};
 enum {JSON_integer_en_main = 1};
 
 
-#line 306 "parser.rl"
+#line 307 "parser.rl"
 
 
 static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *result)
@@ -891,15 +892,15 @@ static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *res
     int cs = EVIL;
 
 
-#line 895 "parser.c"
+#line 896 "parser.c"
 	{
 	cs = JSON_integer_start;
 	}
 
-#line 313 "parser.rl"
+#line 314 "parser.rl"
     json->memo = p;
 
-#line 903 "parser.c"
+#line 904 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -933,14 +934,14 @@ case 3:
 		goto st0;
 	goto tr4;
 tr4:
-#line 303 "parser.rl"
+#line 304 "parser.rl"
 	{ p--; {p++; cs = 4; goto _out;} }
 	goto st4;
 st4:
 	if ( ++p == pe )
 		goto _test_eof4;
 case 4:
-#line 944 "parser.c"
+#line 945 "parser.c"
 	goto st0;
 st5:
 	if ( ++p == pe )
@@ -959,7 +960,7 @@ case 5:
 	_out: {}
 	}
 
-#line 315 "parser.rl"
+#line 316 "parser.rl"
 
     if (cs >= JSON_integer_first_final) {
         long len = p - json->memo;
@@ -974,7 +975,7 @@ case 5:
 }
 
 
-#line 978 "parser.c"
+#line 979 "parser.c"
 enum {JSON_float_start = 1};
 enum {JSON_float_first_final = 8};
 enum {JSON_float_error = 0};
@@ -982,23 +983,36 @@ enum {JSON_float_error = 0};
 enum {JSON_float_en_main = 1};
 
 
-#line 340 "parser.rl"
+#line 341 "parser.rl"
 
 
+static int is_bigdecimal_class(VALUE obj)
+{
+  if (cBigDecimal == Qundef) {
+    if (rb_const_defined(rb_cObject, i_BigDecimal)) {
+      cBigDecimal = rb_const_get_at(rb_cObject, i_BigDecimal);
+    }
+    else {
+      return 0;
+    }
+  }
+  return obj == cBigDecimal;
+}
+
 static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *result)
 {
     int cs = EVIL;
 
 
-#line 994 "parser.c"
+#line 1008 "parser.c"
 	{
 	cs = JSON_float_start;
 	}
 
-#line 347 "parser.rl"
+#line 361 "parser.rl"
     json->memo = p;
 
-#line 1002 "parser.c"
+#line 1016 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -1056,14 +1070,14 @@ case 8:
 		goto st0;
 	goto tr9;
 tr9:
-#line 334 "parser.rl"
+#line 335 "parser.rl"
 	{ p--; {p++; cs = 9; goto _out;} }
 	goto st9;
 st9:
 	if ( ++p == pe )
 		goto _test_eof9;
 case 9:
-#line 1067 "parser.c"
+#line 1081 "parser.c"
 	goto st0;
 st5:
 	if ( ++p == pe )
@@ -1124,7 +1138,7 @@ case 7:
 	_out: {}
 	}
 
-#line 349 "parser.rl"
+#line 363 "parser.rl"
 
     if (cs >= JSON_float_first_final) {
         long len = p - json->memo;
@@ -1136,7 +1150,11 @@ case 7:
         } else {
           VALUE text;
           text = rb_str_new2(FBUFFER_PTR(json->fbuffer));
-          *result = rb_funcall(json->decimal_class, i_new, 1, text);
+          if (is_bigdecimal_class(json->decimal_class)) {
+            *result = rb_funcall(Qnil, i_BigDecimal, 1, text);
+          } else {
+            *result = rb_funcall(json->decimal_class, i_new, 1, text);
+          }
         }
         return p + 1;
     } else {
@@ -1146,7 +1164,7 @@ case 7:
 
 
 
-#line 1150 "parser.c"
+#line 1168 "parser.c"
 enum {JSON_array_start = 1};
 enum {JSON_array_first_final = 17};
 enum {JSON_array_error = 0};
@@ -1154,7 +1172,7 @@ enum {JSON_array_error = 0};
 enum {JSON_array_en_main = 1};
 
 
-#line 398 "parser.rl"
+#line 416 "parser.rl"
 
 
 static char *JSON_parse_array(JSON_Parser *json, char *p, char *pe, VALUE *result, int current_nesting)
@@ -1168,14 +1186,14 @@ static char *JSON_parse_array(JSON_Parser *json, char *p, char *pe, VALUE *resul
     *result = NIL_P(array_class) ? rb_ary_new() : rb_class_new_instance(0, 0, array_class);
 
 
-#line 1172 "parser.c"
+#line 1190 "parser.c"
 	{
 	cs = JSON_array_start;
 	}
 
-#line 411 "parser.rl"
+#line 429 "parser.rl"
 
-#line 1179 "parser.c"
+#line 1197 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -1214,7 +1232,7 @@ case 2:
 		goto st2;
 	goto st0;
 tr2:
-#line 375 "parser.rl"
+#line 393 "parser.rl"
 	{
         VALUE v = Qnil;
         char *np = JSON_parse_value(json, p, pe, &v, current_nesting);
@@ -1234,7 +1252,7 @@ st3:
 	if ( ++p == pe )
 		goto _test_eof3;
 case 3:
-#line 1238 "parser.c"
+#line 1256 "parser.c"
 	switch( (*p) ) {
 		case 13: goto st3;
 		case 32: goto st3;
@@ -1334,14 +1352,14 @@ case 12:
 		goto st3;
 	goto st12;
 tr4:
-#line 390 "parser.rl"
+#line 408 "parser.rl"
 	{ p--; {p++; cs = 17; goto _out;} }
 	goto st17;
 st17:
 	if ( ++p == pe )
 		goto _test_eof17;
 case 17:
-#line 1345 "parser.c"
+#line 1363 "parser.c"
 	goto st0;
 st13:
 	if ( ++p == pe )
@@ -1397,7 +1415,7 @@ case 16:
 	_out: {}
 	}
 
-#line 412 "parser.rl"
+#line 430 "parser.rl"
 
     if(cs >= JSON_array_first_final) {
         return p + 1;
@@ -1486,7 +1504,7 @@ static VALUE json_string_unescape(VALUE result, char *string, char *stringEnd)
 }
 
 
-#line 1490 "parser.c"
+#line 1508 "parser.c"
 enum {JSON_string_start = 1};
 enum {JSON_string_first_final = 8};
 enum {JSON_string_error = 0};
@@ -1494,7 +1512,7 @@ enum {JSON_string_error = 0};
 enum {JSON_string_en_main = 1};
 
 
-#line 519 "parser.rl"
+#line 537 "parser.rl"
 
 
 static int
@@ -1516,15 +1534,15 @@ static char *JSON_parse_string(JSON_Parser *json, char *p, char *pe, VALUE *resu
 
     *result = rb_str_buf_new(0);
 
-#line 1520 "parser.c"
+#line 1538 "parser.c"
 	{
 	cs = JSON_string_start;
 	}
 
-#line 540 "parser.rl"
+#line 558 "parser.rl"
     json->memo = p;
 
-#line 1528 "parser.c"
+#line 1546 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -1549,7 +1567,7 @@ case 2:
 		goto st0;
 	goto st2;
 tr2:
-#line 505 "parser.rl"
+#line 523 "parser.rl"
 	{
         *result = json_string_unescape(*result, json->memo + 1, p);
         if (NIL_P(*result)) {
@@ -1560,14 +1578,14 @@ tr2:
             {p = (( p + 1))-1;}
         }
     }
-#line 516 "parser.rl"
+#line 534 "parser.rl"
 	{ p--; {p++; cs = 8; goto _out;} }
 	goto st8;
 st8:
 	if ( ++p == pe )
 		goto _test_eof8;
 case 8:
-#line 1571 "parser.c"
+#line 1589 "parser.c"
 	goto st0;
 st3:
 	if ( ++p == pe )
@@ -1643,7 +1661,7 @@ case 7:
 	_out: {}
 	}
 
-#line 542 "parser.rl"
+#line 560 "parser.rl"
 
     if (json->create_additions && RTEST(match_string = json->match_string)) {
           VALUE klass;
@@ -1830,7 +1848,7 @@ static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
 }
 
 
-#line 1834 "parser.c"
+#line 1852 "parser.c"
 enum {JSON_start = 1};
 enum {JSON_first_final = 10};
 enum {JSON_error = 0};
@@ -1838,7 +1856,7 @@ enum {JSON_error = 0};
 enum {JSON_en_main = 1};
 
 
-#line 742 "parser.rl"
+#line 760 "parser.rl"
 
 
 /*
@@ -1855,16 +1873,16 @@ static VALUE cParser_parse(VALUE self)
   GET_PARSER;
 
 
-#line 1859 "parser.c"
+#line 1877 "parser.c"
 	{
 	cs = JSON_start;
 	}
 
-#line 758 "parser.rl"
+#line 776 "parser.rl"
   p = json->source;
   pe = p + json->len;
 
-#line 1868 "parser.c"
+#line 1886 "parser.c"
 	{
 	if ( p == pe )
 		goto _test_eof;
@@ -1898,7 +1916,7 @@ st0:
 cs = 0;
 	goto _out;
 tr2:
-#line 734 "parser.rl"
+#line 752 "parser.rl"
 	{
         char *np = JSON_parse_value(json, p, pe, &result, 0);
         if (np == NULL) { p--; {p++; cs = 10; goto _out;} } else {p = (( np))-1;}
@@ -1908,7 +1926,7 @@ st10:
 	if ( ++p == pe )
 		goto _test_eof10;
 case 10:
-#line 1912 "parser.c"
+#line 1930 "parser.c"
 	switch( (*p) ) {
 		case 13: goto st10;
 		case 32: goto st10;
@@ -1997,7 +2015,7 @@ case 9:
 	_out: {}
 	}
 
-#line 761 "parser.rl"
+#line 779 "parser.rl"
 
   if (cs >= JSON_first_final && p == pe) {
     return result;
@@ -2064,6 +2082,7 @@ static VALUE cParser_source(VALUE self)
 
 void Init_parser(void)
 {
+#undef rb_intern
     rb_require("json/common");
     mJSON = rb_define_module("JSON");
     mExt = rb_define_module_under(mJSON, "Ext");
@@ -2098,6 +2117,7 @@ void Init_parser(void)
     i_aref = rb_intern("[]");
     i_leftshift = rb_intern("<<");
     i_new = rb_intern("new");
+    i_BigDecimal = rb_intern("BigDecimal");
 }
 
 /*
diff --git a/ext/json/ext/parser/parser.rl b/ext/json/ext/parser/parser.rl
index 4c84865..e7738d6 100644
--- a/ext/json/ext/parser/parser.rl
+++ b/ext/json/ext/parser/parser.rl
@@ -89,12 +89,13 @@ static int convert_UTF32_to_UTF8(char *buf, UTF32 ch)
 
 static VALUE mJSON, mExt, cParser, eParserError, eNestingError;
 static VALUE CNaN, CInfinity, CMinusInfinity;
+static VALUE cBigDecimal = Qundef;
 
 static ID i_json_creatable_p, i_json_create, i_create_id, i_create_additions,
           i_chr, i_max_nesting, i_allow_nan, i_symbolize_names,
           i_object_class, i_array_class, i_decimal_class, i_key_p,
           i_deep_const_get, i_match, i_match_string, i_aset, i_aref,
-          i_leftshift, i_new;
+          i_leftshift, i_new, i_BigDecimal;
 
 %%{
     machine JSON_common;
@@ -339,6 +340,19 @@ static char *JSON_parse_integer(JSON_Parser *json, char *p, char *pe, VALUE *res
              )  (^[0-9Ee.\-]? @exit );
 }%%
 
+static int is_bigdecimal_class(VALUE obj)
+{
+  if (cBigDecimal == Qundef) {
+    if (rb_const_defined(rb_cObject, i_BigDecimal)) {
+      cBigDecimal = rb_const_get_at(rb_cObject, i_BigDecimal);
+    }
+    else {
+      return 0;
+    }
+  }
+  return obj == cBigDecimal;
+}
+
 static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *result)
 {
     int cs = EVIL;
@@ -357,7 +371,11 @@ static char *JSON_parse_float(JSON_Parser *json, char *p, char *pe, VALUE *resul
         } else {
           VALUE text;
           text = rb_str_new2(FBUFFER_PTR(json->fbuffer));
-          *result = rb_funcall(json->decimal_class, i_new, 1, text);
+          if (is_bigdecimal_class(json->decimal_class)) {
+            *result = rb_funcall(Qnil, i_BigDecimal, 1, text);
+          } else {
+            *result = rb_funcall(json->decimal_class, i_new, 1, text);
+          }
         }
         return p + 1;
     } else {
@@ -824,6 +842,7 @@ static VALUE cParser_source(VALUE self)
 
 void Init_parser(void)
 {
+#undef rb_intern
     rb_require("json/common");
     mJSON = rb_define_module("JSON");
     mExt = rb_define_module_under(mJSON, "Ext");
@@ -858,6 +877,7 @@ void Init_parser(void)
     i_aref = rb_intern("[]");
     i_leftshift = rb_intern("<<");
     i_new = rb_intern("new");
+    i_BigDecimal = rb_intern("BigDecimal");
 }
 
 /*
diff --git a/java/src/json/ext/Generator.java b/java/src/json/ext/Generator.java
index 96a5e7e..24bf049 100644
--- a/java/src/json/ext/Generator.java
+++ b/java/src/json/ext/Generator.java
@@ -7,6 +7,7 @@ package json.ext;
 
 import org.jruby.Ruby;
 import org.jruby.RubyArray;
+import org.jruby.RubyBasicObject;
 import org.jruby.RubyBignum;
 import org.jruby.RubyBoolean;
 import org.jruby.RubyClass;
@@ -15,6 +16,7 @@ import org.jruby.RubyFloat;
 import org.jruby.RubyHash;
 import org.jruby.RubyNumeric;
 import org.jruby.RubyString;
+import org.jruby.runtime.ClassIndex;
 import org.jruby.runtime.ThreadContext;
 import org.jruby.runtime.builtin.IRubyObject;
 import org.jruby.util.ByteList;
@@ -57,6 +59,19 @@ public final class Generator {
         return handler.generateNew(session, object);
     }
 
+    // NOTE: drop this once Ruby 1.9.3 support is gone!
+    private static final int FIXNUM = 1;
+    private static final int BIGNUM = 2;
+    private static final int ARRAY = 3;
+    private static final int STRING = 4;
+    private static final int NIL = 5;
+    private static final int TRUE = 6;
+    private static final int FALSE = 7;
+    private static final int HASH = 10;
+    private static final int FLOAT = 11;
+    // hard-coded due JRuby 1.7 compatibility
+    // https://github.com/jruby/jruby/blob/1.7.27/core/src/main/java/org/jruby/runtime/ClassIndex.java
+
     /**
      * Returns the best serialization handler for the given object.
      */
@@ -65,16 +80,24 @@ public final class Generator {
     @SuppressWarnings("unchecked")
     private static <T extends IRubyObject>
             Handler<? super T> getHandlerFor(Ruby runtime, T object) {
-        RubyClass metaClass = object.getMetaClass();
-        if (metaClass == runtime.getString()) return (Handler)STRING_HANDLER;
-        if (metaClass == runtime.getFixnum()) return (Handler)FIXNUM_HANDLER;
-        if (metaClass == runtime.getHash())   return (Handler)HASH_HANDLER;
-        if (metaClass == runtime.getArray())  return (Handler)ARRAY_HANDLER;
-        if (object.isNil())                   return (Handler)NIL_HANDLER;
-        if (object == runtime.getTrue())      return (Handler)TRUE_HANDLER;
-        if (object == runtime.getFalse())     return (Handler)FALSE_HANDLER;
-        if (metaClass == runtime.getFloat())  return (Handler)FLOAT_HANDLER;
-        if (metaClass == runtime.getBignum()) return (Handler)BIGNUM_HANDLER;
+        switch (((RubyBasicObject) object).getNativeTypeIndex()) {
+            // can not use getNativeClassIndex due 1.7 compatibility
+            case NIL    : return (Handler) NIL_HANDLER;
+            case TRUE   : return (Handler) TRUE_HANDLER;
+            case FALSE  : return (Handler) FALSE_HANDLER;
+            case FLOAT  : return (Handler) FLOAT_HANDLER;
+            case FIXNUM : return (Handler) FIXNUM_HANDLER;
+            case BIGNUM : return (Handler) BIGNUM_HANDLER;
+            case STRING :
+                if (((RubyBasicObject) object).getMetaClass() != runtime.getString()) break;
+                return (Handler) STRING_HANDLER;
+            case ARRAY  :
+                if (((RubyBasicObject) object).getMetaClass() != runtime.getArray()) break;
+                return (Handler) ARRAY_HANDLER;
+            case HASH   :
+                if (((RubyBasicObject) object).getMetaClass() != runtime.getHash()) break;
+                return (Handler) HASH_HANDLER;
+        }
         return GENERIC_HANDLER;
     }
 
diff --git a/java/src/json/ext/Parser.java b/java/src/json/ext/Parser.java
index 2ba9f8f..647afca 100644
--- a/java/src/json/ext/Parser.java
+++ b/java/src/json/ext/Parser.java
@@ -55,7 +55,7 @@ public class Parser extends RubyObject {
     private RubyClass objectClass;
     private RubyClass arrayClass;
     private RubyClass decimalClass;
-    private RubyHash matchString;
+    private RubyHash match_string;
 
     private static final int DEFAULT_MAX_NESTING = 100;
 
@@ -165,7 +165,7 @@ public class Parser extends RubyObject {
         this.objectClass     = opts.getClass("object_class", runtime.getHash());
         this.arrayClass      = opts.getClass("array_class", runtime.getArray());
         this.decimalClass    = opts.getClass("decimal_class", null);
-        this.matchString    = opts.getHash("match_string");
+        this.match_string    = opts.getHash("match_string");
 
         if(symbolizeNames && createAdditions) {
           throw runtime.newArgumentError(
@@ -1437,7 +1437,7 @@ case 5:
 // line 608 "Parser.rl"
 
             if (parser.createAdditions) {
-                RubyHash matchString = parser.matchString;
+                RubyHash matchString = parser.match_string;
                 if (matchString != null) {
                     final IRubyObject[] memoArray = { result, null };
                     try {
diff --git a/java/src/json/ext/Parser.rl b/java/src/json/ext/Parser.rl
index 4d170e1..c0c72ad 100644
--- a/java/src/json/ext/Parser.rl
+++ b/java/src/json/ext/Parser.rl
@@ -607,7 +607,7 @@ public class Parser extends RubyObject {
             %% write exec;
 
             if (parser.createAdditions) {
-                RubyHash matchString = parser.matchString;
+                RubyHash matchString = parser.match_string;
                 if (matchString != null) {
                     final IRubyObject[] memoArray = { result, null };
                     try {
diff --git a/json.gemspec b/json.gemspec
index 24795b2..470330f 100644
--- a/json.gemspec
+++ b/json.gemspec
diff --git a/json_pure.gemspec b/json_pure.gemspec
index 4cd8881..16f09f3 100644
--- a/json_pure.gemspec
+++ b/json_pure.gemspec
@@ -1,23 +1,23 @@
 # -*- encoding: utf-8 -*-
-# stub: json_pure 2.1.0 ruby lib
+# stub: json_pure 2.2.0 ruby lib
 
 Gem::Specification.new do |s|
   s.name = "json_pure".freeze
-  s.version = "2.1.0"
+  s.version = "2.2.0"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
   s.require_paths = ["lib".freeze]
   s.authors = ["Florian Frank".freeze]
-  s.date = "2017-06-21"
+  s.date = "2019-02-21"
   s.description = "This is a JSON implementation in pure Ruby.".freeze
   s.email = "flori@ping.de".freeze
   s.extra_rdoc_files = ["README.md".freeze]
-  s.files = ["./tests/test_helper.rb".freeze, ".gitignore".freeze, ".travis.yml".freeze, "CHANGES.md".freeze, "Gemfile".freeze, "README-json-jruby.md".freeze, "README.md".freeze, "Rakefile".freeze, "VERSION".freeze, "data/example.json".freeze, "data/index.html".freeze, "data/prototype.js".freeze, "diagrams/.keep".freeze, "ext/json/ext/fbuffer/fbuffer.h".freeze, "ext/json/ext/generator/depend".freeze, "ext/json/ext/generator/extconf.rb".freeze, "ext/json/ext/generator/generator.c".freeze, "ext/json/ext/generator/generator.h".freeze, "ext/json/ext/parser/depend".freeze, "ext/json/ext/parser/extconf.rb".freeze, "ext/json/ext/parser/parser.c".freeze, "ext/json/ext/parser/parser.h".freeze, "ext/json/ext/parser/parser.rl".freeze, "ext/json/extconf.rb".freeze, "install.rb".freeze, "java/src/json/ext/ByteListTranscoder.java".freeze, "java/src/json/ext/Generator.java".freeze, "java/src/json/ext/GeneratorMethods.java".freeze, "java/src/json/ext/GeneratorService.java".freeze, "java/src/json/ext/GeneratorState.java".freeze, "java/src/json/ext/OptionsReader.java".freeze, "java/src/json/ext/Parser.java".freeze, "java/src/json/ext/Parser.rl".freeze, "java/src/json/ext/ParserService.java".freeze, "java/src/json/ext/RuntimeInfo.java".freeze, "java/src/json/ext/StringDecoder.java".freeze, "java/src/json/ext/StringEncoder.java".freeze, "java/src/json/ext/Utils.java".freeze, "json-java.gemspec".freeze, "json.gemspec".freeze, "json_pure.gemspec".freeze, "lib/json.rb".freeze, "lib/json/add/bigdecimal.rb".freeze, "lib/json/add/complex.rb".freeze, "lib/json/add/core.rb".freeze, "lib/json/add/date.rb".freeze, "lib/json/add/date_time.rb".freeze, "lib/json/add/exception.rb".freeze, "lib/json/add/ostruct.rb".freeze, "lib/json/add/range.rb".freeze, "lib/json/add/rational.rb".freeze, "lib/json/add/regexp.rb".freeze, "lib/json/add/struct.rb".freeze, "lib/json/add/symbol.rb".freeze, "lib/json/add/time.rb".freeze, "lib/json/common.rb".freeze, "lib/json/ext.rb".freeze, "lib/json/ext/.keep".freeze, "lib/json/generic_object.rb".freeze, "lib/json/pure.rb".freeze, "lib/json/pure/generator.rb".freeze, "lib/json/pure/parser.rb".freeze, "lib/json/version.rb".freeze, "references/rfc7159.txt".freeze, "tests/fixtures/fail10.json".freeze, "tests/fixtures/fail11.json".freeze, "tests/fixtures/fail12.json".freeze, "tests/fixtures/fail13.json".freeze, "tests/fixtures/fail14.json".freeze, "tests/fixtures/fail18.json".freeze, "tests/fixtures/fail19.json".freeze, "tests/fixtures/fail2.json".freeze, "tests/fixtures/fail20.json".freeze, "tests/fixtures/fail21.json".freeze, "tests/fixtures/fail22.json".freeze, "tests/fixtures/fail23.json".freeze, "tests/fixtures/fail24.json".freeze, "tests/fixtures/fail25.json".freeze, "tests/fixtures/fail27.json".freeze, "tests/fixtures/fail28.json".freeze, "tests/fixtures/fail3.json".freeze, "tests/fixtures/fail4.json".freeze, "tests/fixtures/fail5.json".freeze, "tests/fixtures/fail6.json".freeze, "tests/fixtures/fail7.json".freeze, "tests/fixtures/fail8.json".freeze, "tests/fixtures/fail9.json".freeze, "tests/fixtures/obsolete_fail1.json".freeze, "tests/fixtures/pass1.json".freeze, "tests/fixtures/pass15.json".freeze, "tests/fixtures/pass16.json".freeze, "tests/fixtures/pass17.json".freeze, "tests/fixtures/pass2.json".freeze, "tests/fixtures/pass26.json".freeze, "tests/fixtures/pass3.json".freeze, "tests/json_addition_test.rb".freeze, "tests/json_common_interface_test.rb".freeze, "tests/json_encoding_test.rb".freeze, "tests/json_ext_parser_test.rb".freeze, "tests/json_fixtures_test.rb".freeze, "tests/json_generator_test.rb".freeze, "tests/json_generic_object_test.rb".freeze, "tests/json_parser_test.rb".freeze, "tests/json_string_matching_test.rb".freeze, "tests/test_helper.rb".freeze, "tools/diff.sh".freeze, "tools/fuzz.rb".freeze, "tools/server.rb".freeze]
+  s.files = ["./tests/test_helper.rb".freeze, ".gitignore".freeze, ".travis.yml".freeze, "CHANGES.md".freeze, "Gemfile".freeze, "README-json-jruby.md".freeze, "README.md".freeze, "Rakefile".freeze, "VERSION".freeze, "diagrams/.keep".freeze, "ext/json/ext/fbuffer/fbuffer.h".freeze, "ext/json/ext/generator/depend".freeze, "ext/json/ext/generator/extconf.rb".freeze, "ext/json/ext/generator/generator.c".freeze, "ext/json/ext/generator/generator.h".freeze, "ext/json/ext/parser/depend".freeze, "ext/json/ext/parser/extconf.rb".freeze, "ext/json/ext/parser/parser.c".freeze, "ext/json/ext/parser/parser.h".freeze, "ext/json/ext/parser/parser.rl".freeze, "ext/json/extconf.rb".freeze, "install.rb".freeze, "java/src/json/ext/ByteListTranscoder.java".freeze, "java/src/json/ext/Generator.java".freeze, "java/src/json/ext/GeneratorMethods.java".freeze, "java/src/json/ext/GeneratorService.java".freeze, "java/src/json/ext/GeneratorState.java".freeze, "java/src/json/ext/OptionsReader.java".freeze, "java/src/json/ext/Parser.java".freeze, "java/src/json/ext/Parser.rl".freeze, "java/src/json/ext/ParserService.java".freeze, "java/src/json/ext/RuntimeInfo.java".freeze, "java/src/json/ext/StringDecoder.java".freeze, "java/src/json/ext/StringEncoder.java".freeze, "java/src/json/ext/Utils.java".freeze, "json-java.gemspec".freeze, "json.gemspec".freeze, "json_pure.gemspec".freeze, "lib/json.rb".freeze, "lib/json/add/bigdecimal.rb".freeze, "lib/json/add/complex.rb".freeze, "lib/json/add/core.rb".freeze, "lib/json/add/date.rb".freeze, "lib/json/add/date_time.rb".freeze, "lib/json/add/exception.rb".freeze, "lib/json/add/ostruct.rb".freeze, "lib/json/add/range.rb".freeze, "lib/json/add/rational.rb".freeze, "lib/json/add/regexp.rb".freeze, "lib/json/add/set.rb".freeze, "lib/json/add/struct.rb".freeze, "lib/json/add/symbol.rb".freeze, "lib/json/add/time.rb".freeze, "lib/json/common.rb".freeze, "lib/json/ext.rb".freeze, "lib/json/ext/.keep".freeze, "lib/json/generic_object.rb".freeze, "lib/json/pure.rb".freeze, "lib/json/pure/generator.rb".freeze, "lib/json/pure/parser.rb".freeze, "lib/json/version.rb".freeze, "references/rfc7159.txt".freeze, "tests/fixtures/fail10.json".freeze, "tests/fixtures/fail11.json".freeze, "tests/fixtures/fail12.json".freeze, "tests/fixtures/fail13.json".freeze, "tests/fixtures/fail14.json".freeze, "tests/fixtures/fail18.json".freeze, "tests/fixtures/fail19.json".freeze, "tests/fixtures/fail2.json".freeze, "tests/fixtures/fail20.json".freeze, "tests/fixtures/fail21.json".freeze, "tests/fixtures/fail22.json".freeze, "tests/fixtures/fail23.json".freeze, "tests/fixtures/fail24.json".freeze, "tests/fixtures/fail25.json".freeze, "tests/fixtures/fail27.json".freeze, "tests/fixtures/fail28.json".freeze, "tests/fixtures/fail3.json".freeze, "tests/fixtures/fail4.json".freeze, "tests/fixtures/fail5.json".freeze, "tests/fixtures/fail6.json".freeze, "tests/fixtures/fail7.json".freeze, "tests/fixtures/fail8.json".freeze, "tests/fixtures/fail9.json".freeze, "tests/fixtures/obsolete_fail1.json".freeze, "tests/fixtures/pass1.json".freeze, "tests/fixtures/pass15.json".freeze, "tests/fixtures/pass16.json".freeze, "tests/fixtures/pass17.json".freeze, "tests/fixtures/pass2.json".freeze, "tests/fixtures/pass26.json".freeze, "tests/fixtures/pass3.json".freeze, "tests/json_addition_test.rb".freeze, "tests/json_common_interface_test.rb".freeze, "tests/json_encoding_test.rb".freeze, "tests/json_ext_parser_test.rb".freeze, "tests/json_fixtures_test.rb".freeze, "tests/json_generator_test.rb".freeze, "tests/json_generic_object_test.rb".freeze, "tests/json_parser_test.rb".freeze, "tests/json_string_matching_test.rb".freeze, "tests/test_helper.rb".freeze, "tools/diff.sh".freeze, "tools/fuzz.rb".freeze, "tools/server.rb".freeze]
   s.homepage = "http://flori.github.com/json".freeze
   s.licenses = ["Ruby".freeze]
   s.rdoc_options = ["--title".freeze, "JSON implemention for ruby".freeze, "--main".freeze, "README.md".freeze]
   s.required_ruby_version = Gem::Requirement.new(">= 1.9".freeze)
-  s.rubygems_version = "2.6.11".freeze
+  s.rubygems_version = "3.0.2".freeze
   s.summary = "JSON Implementation for Ruby".freeze
   s.test_files = ["./tests/test_helper.rb".freeze]
 
diff --git a/lib/json/add/ostruct.rb b/lib/json/add/ostruct.rb
index e064c85..686cf00 100644
--- a/lib/json/add/ostruct.rb
+++ b/lib/json/add/ostruct.rb
@@ -23,7 +23,7 @@ class OpenStruct
     }
   end
 
-  # Stores class name (OpenStruct) with this struct's values <tt>v</tt> as a
+  # Stores class name (OpenStruct) with this struct's values <tt>t</tt> as a
   # JSON string.
   def to_json(*args)
     as_json.to_json(*args)
diff --git a/lib/json/version.rb b/lib/json/version.rb
index b65ed87..115eb5b 100644
--- a/lib/json/version.rb
+++ b/lib/json/version.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: false
 module JSON
   # JSON version
-  VERSION         = '2.1.0'
+  VERSION         = '2.2.0'
   VERSION_ARRAY   = VERSION.split(/\./).map { |x| x.to_i } # :nodoc:
   VERSION_MAJOR   = VERSION_ARRAY[0] # :nodoc:
   VERSION_MINOR   = VERSION_ARRAY[1] # :nodoc: