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From sa...@apache.org
Subject svn commit: r782822 [2/2] - in /incubator/click/trunk/click: documentation/docs/roadmap-changes.html extras/src/org/apache/click/extras/control/prototype/prototype.js
Date Mon, 08 Jun 2009 22:56:59 GMT
Modified: incubator/click/trunk/click/extras/src/org/apache/click/extras/control/prototype/prototype.js
URL: http://svn.apache.org/viewvc/incubator/click/trunk/click/extras/src/org/apache/click/extras/control/prototype/prototype.js?rev=782822&r1=782821&r2=782822&view=diff
==============================================================================
--- incubator/click/trunk/click/extras/src/org/apache/click/extras/control/prototype/prototype.js (original)
+++ incubator/click/trunk/click/extras/src/org/apache/click/extras/control/prototype/prototype.js Mon Jun  8 22:56:59 2009
@@ -1,5 +1,5 @@
-/*  Prototype JavaScript framework, version 1.6.0.1
- *  (c) 2005-2007 Sam Stephenson
+/*  Prototype JavaScript framework, version 1.6.1_rc2
+ *  (c) 2005-2009 Sam Stephenson
  *
  *  Prototype is freely distributable under the terms of an MIT-style license.
  *  For details, see the Prototype web site: http://www.prototypejs.org/
@@ -7,23 +7,39 @@
  *--------------------------------------------------------------------------*/
 
 var Prototype = {
-  Version: '1.6.0.1',
+  Version: '1.6.1_rc2',
 
   Browser: {
-    IE:     !!(window.attachEvent && !window.opera),
-    Opera:  !!window.opera,
+    IE:     !!(window.attachEvent &&
+      navigator.userAgent.indexOf('Opera') === -1),
+    Opera:  navigator.userAgent.indexOf('Opera') > -1,
     WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
-    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -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__
+    SelectorsAPI: !!document.querySelector,
+    ElementExtensions: (function() {
+      if (window.HTMLElement && window.HTMLElement.prototype)
+        return true;
+      if (window.Element && window.Element.prototype)
+        return true;
+    })(),
+    SpecificElementExtensions: (function() {
+      if (typeof window.HTMLDivElement !== 'undefined')
+        return true;
+
+      var div = document.createElement('div');
+      if (div['__proto__'] && div['__proto__'] !==
+       document.createElement('form')['__proto__']) {
+        return true;
+      }
+
+      return false;
+    })()
   },
 
   ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
@@ -37,9 +53,29 @@
   Prototype.BrowserFeatures.SpecificElementExtensions = false;
 
 
+var Abstract = { };
+
+
+var Try = {
+  these: function() {
+    var returnValue;
+
+    for (var i = 0, length = arguments.length; i < length; i++) {
+      var lambda = arguments[i];
+      try {
+        returnValue = lambda();
+        break;
+      } catch (e) { }
+    }
+
+    return returnValue;
+  }
+};
+
 /* Based on Alex Arnell's inheritance implementation. */
-var Class = {
-  create: function() {
+
+var Class = (function() {
+  function create() {
     var parent = null, properties = $A(arguments);
     if (Object.isFunction(properties[0]))
       parent = properties.shift();
@@ -53,7 +89,7 @@
     klass.subclasses = [];
 
     if (parent) {
-      var subclass = function() { };
+      var subclass = function() {};
       subclass.prototype = parent.prototype;
       klass.prototype = new subclass;
       parent.subclasses.push(klass);
@@ -66,58 +102,70 @@
       klass.prototype.initialize = Prototype.emptyFunction;
 
     klass.prototype.constructor = klass;
-
     return klass;
   }
-};
 
-Class.Methods = {
-  addMethods: function(source) {
+  function addMethods(source) {
     var ancestor   = this.superclass && this.superclass.prototype;
     var properties = Object.keys(source);
 
-    if (!Object.keys({ toString: true }).length)
-      properties.push("toString", "valueOf");
+    if (!Object.keys({ toString: true }).length) {
+      if (source.toString != Object.prototype.toString)
+        properties.push("toString");
+      if (source.valueOf != Object.prototype.valueOf)
+        properties.push("valueOf");
+    }
 
     for (var i = 0, length = properties.length; i < length; i++) {
       var property = properties[i], value = source[property];
       if (ancestor && Object.isFunction(value) &&
           value.argumentNames().first() == "$super") {
-        var method = value, value = Object.extend((function(m) {
-          return function() { return ancestor[m].apply(this, arguments) };
-        })(property).wrap(method), {
-          valueOf:  function() { return method },
-          toString: function() { return method.toString() }
-        });
+        var method = value;
+        value = (function(m) {
+          return function() { return ancestor[m].apply(this, arguments); };
+        })(property).wrap(method);
+
+        value.valueOf = method.valueOf.bind(method);
+        value.toString = method.toString.bind(method);
       }
       this.prototype[property] = value;
     }
 
     return this;
   }
-};
 
-var Abstract = { };
+  return {
+    create: create,
+    Methods: {
+      addMethods: addMethods
+    }
+  };
+})();
+(function() {
 
-Object.extend = function(destination, source) {
-  for (var property in source)
-    destination[property] = source[property];
-  return destination;
-};
+  function getClass(object) {
+    return Object.prototype.toString.call(object)
+     .match(/^\[object\s(.*)\]$/)[1];
+  }
+
+  function extend(destination, source) {
+    for (var property in source)
+      destination[property] = source[property];
+    return destination;
+  }
 
-Object.extend(Object, {
-  inspect: function(object) {
+  function inspect(object) {
     try {
-      if (Object.isUndefined(object)) return 'undefined';
+      if (isUndefined(object)) return 'undefined';
       if (object === null) return 'null';
-      return object.inspect ? object.inspect() : object.toString();
+      return object.inspect ? object.inspect() : String(object);
     } catch (e) {
       if (e instanceof RangeError) return '...';
       throw e;
     }
-  },
+  }
 
-  toJSON: function(object) {
+  function toJSON(object) {
     var type = typeof object;
     switch (type) {
       case 'undefined':
@@ -128,126 +176,180 @@
 
     if (object === null) return 'null';
     if (object.toJSON) return object.toJSON();
-    if (Object.isElement(object)) return;
+    if (isElement(object)) return;
 
     var results = [];
     for (var property in object) {
-      var value = Object.toJSON(object[property]);
-      if (!Object.isUndefined(value))
+      var value = toJSON(object[property]);
+      if (!isUndefined(value))
         results.push(property.toJSON() + ': ' + value);
     }
 
     return '{' + results.join(', ') + '}';
-  },
+  }
 
-  toQueryString: function(object) {
+  function toQueryString(object) {
     return $H(object).toQueryString();
-  },
+  }
 
-  toHTML: function(object) {
+  function toHTML(object) {
     return object && object.toHTML ? object.toHTML() : String.interpret(object);
-  },
+  }
 
-  keys: function(object) {
-    var keys = [];
+  function keys(object) {
+    var results = [];
     for (var property in object)
-      keys.push(property);
-    return keys;
-  },
+      results.push(property);
+    return results;
+  }
 
-  values: function(object) {
-    var values = [];
+  function values(object) {
+    var results = [];
     for (var property in object)
-      values.push(object[property]);
-    return values;
-  },
+      results.push(object[property]);
+    return results;
+  }
 
-  clone: function(object) {
-    return Object.extend({ }, object);
-  },
+  function clone(object) {
+    return extend({ }, object);
+  }
 
-  isElement: function(object) {
-    return object && object.nodeType == 1;
-  },
+  function isElement(object) {
+    return !!(object && object.nodeType == 1);
+  }
+
+  function isArray(object) {
+    return getClass(object) === "Array";
+  }
 
-  isArray: function(object) {
-    return object && object.constructor === Array;
-  },
 
-  isHash: function(object) {
+  function isHash(object) {
     return object instanceof Hash;
-  },
+  }
 
-  isFunction: function(object) {
-    return typeof object == "function";
-  },
+  function isFunction(object) {
+    return typeof object === "function";
+  }
 
-  isString: function(object) {
-    return typeof object == "string";
-  },
+  function isString(object) {
+    return getClass(object) === "String";
+  }
 
-  isNumber: function(object) {
-    return typeof object == "number";
-  },
+  function isNumber(object) {
+    return getClass(object) === "Number";
+  }
+
+  function isUndefined(object) {
+    return typeof object === "undefined";
+  }
+
+  extend(Object, {
+    extend:        extend,
+    inspect:       inspect,
+    toJSON:        toJSON,
+    toQueryString: toQueryString,
+    toHTML:        toHTML,
+    keys:          keys,
+    values:        values,
+    clone:         clone,
+    isElement:     isElement,
+    isArray:       isArray,
+    isHash:        isHash,
+    isFunction:    isFunction,
+    isString:      isString,
+    isNumber:      isNumber,
+    isUndefined:   isUndefined
+  });
+})();
+Object.extend(Function.prototype, (function() {
+  var slice = Array.prototype.slice;
 
-  isUndefined: function(object) {
-    return typeof object == "undefined";
+  function update(array, args) {
+    var arrayLength = array.length, length = args.length;
+    while (length--) array[arrayLength + length] = args[length];
+    return array;
   }
-});
 
-Object.extend(Function.prototype, {
-  argumentNames: function() {
-    var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
+  function merge(array, args) {
+    array = slice.call(array, 0);
+    return update(array, args);
+  }
+
+  function argumentNames() {
+    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
+      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
+      .replace(/\s+/g, '').split(',');
     return names.length == 1 && !names[0] ? [] : names;
-  },
+  }
 
-  bind: function() {
+  function bind(context) {
     if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
-    var __method = this, args = $A(arguments), object = args.shift();
+    var __method = this, args = slice.call(arguments, 1);
     return function() {
-      return __method.apply(object, args.concat($A(arguments)));
+      var a = merge(args, arguments);
+      return __method.apply(context, a);
     }
-  },
+  }
 
-  bindAsEventListener: function() {
-    var __method = this, args = $A(arguments), object = args.shift();
+  function bindAsEventListener(context) {
+    var __method = this, args = slice.call(arguments, 1);
     return function(event) {
-      return __method.apply(object, [event || window.event].concat(args));
+      var a = update([event || window.event], args);
+      return __method.apply(context, a);
     }
-  },
+  }
 
-  curry: function() {
+  function curry() {
     if (!arguments.length) return this;
-    var __method = this, args = $A(arguments);
+    var __method = this, args = slice.call(arguments, 0);
     return function() {
-      return __method.apply(this, args.concat($A(arguments)));
+      var a = merge(args, arguments);
+      return __method.apply(this, a);
     }
-  },
+  }
 
-  delay: function() {
-    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
+  function delay(timeout) {
+    var __method = this, args = slice.call(arguments, 1);
+    timeout = timeout * 1000
     return window.setTimeout(function() {
       return __method.apply(__method, args);
     }, timeout);
-  },
+  }
 
-  wrap: function(wrapper) {
+  function defer() {
+    var args = update([0.01], arguments);
+    return this.delay.apply(this, args);
+  }
+
+  function wrap(wrapper) {
     var __method = this;
     return function() {
-      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
+      var a = update([__method.bind(this)], arguments);
+      return wrapper.apply(this, a);
     }
-  },
+  }
 
-  methodize: function() {
+  function methodize() {
     if (this._methodized) return this._methodized;
     var __method = this;
     return this._methodized = function() {
-      return __method.apply(null, [this].concat($A(arguments)));
+      var a = update([this], arguments);
+      return __method.apply(null, a);
     };
   }
-});
 
-Function.prototype.defer = Function.prototype.delay.curry(0.01);
+  return {
+    argumentNames:       argumentNames,
+    bind:                bind,
+    bindAsEventListener: bindAsEventListener,
+    curry:               curry,
+    delay:               delay,
+    defer:               defer,
+    wrap:                wrap,
+    methodize:           methodize
+  }
+})());
+
 
 Date.prototype.toJSON = function() {
   return '"' + this.getUTCFullYear() + '-' +
@@ -258,30 +360,12 @@
     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;
@@ -310,7 +394,10 @@
       try {
         this.currentlyExecuting = true;
         this.execute();
-      } finally {
+      } catch(e) {
+        /* empty catch for clients that don't support try/finally */
+      }
+      finally {
         this.currentlyExecuting = false;
       }
     }
@@ -330,10 +417,25 @@
   }
 });
 
-Object.extend(String.prototype, {
-  gsub: function(pattern, replacement) {
+Object.extend(String.prototype, (function() {
+
+  function prepareReplacement(replacement) {
+    if (Object.isFunction(replacement)) return replacement;
+    var template = new Template(replacement);
+    return function(match) { return template.evaluate(match) };
+  }
+
+  function gsub(pattern, replacement) {
     var result = '', source = this, match;
-    replacement = arguments.callee.prepareReplacement(replacement);
+    replacement = prepareReplacement(replacement);
+
+    if (Object.isString(pattern))
+      pattern = RegExp.escape(pattern);
+
+    if (!(pattern.length || pattern.source)) {
+      replacement = replacement('');
+      return replacement + source.split('').join(replacement) + replacement;
+    }
 
     while (source.length > 0) {
       if (match = source.match(pattern)) {
@@ -345,69 +447,68 @@
       }
     }
     return result;
-  },
+  }
 
-  sub: function(pattern, replacement, count) {
-    replacement = this.gsub.prepareReplacement(replacement);
+  function sub(pattern, replacement, count) {
+    replacement = prepareReplacement(replacement);
     count = Object.isUndefined(count) ? 1 : count;
 
     return this.gsub(pattern, function(match) {
       if (--count < 0) return match[0];
       return replacement(match);
     });
-  },
+  }
 
-  scan: function(pattern, iterator) {
+  function scan(pattern, iterator) {
     this.gsub(pattern, iterator);
     return String(this);
-  },
+  }
 
-  truncate: function(length, truncation) {
+  function truncate(length, truncation) {
     length = length || 30;
     truncation = Object.isUndefined(truncation) ? '...' : truncation;
     return this.length > length ?
       this.slice(0, length - truncation.length) + truncation : String(this);
-  },
+  }
 
-  strip: function() {
+  function strip() {
     return this.replace(/^\s+/, '').replace(/\s+$/, '');
-  },
+  }
 
-  stripTags: function() {
+  function stripTags() {
     return this.replace(/<\/?[^>]+>/gi, '');
-  },
+  }
 
-  stripScripts: function() {
+  function stripScripts() {
     return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
-  },
+  }
 
-  extractScripts: function() {
+  function extractScripts() {
     var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
     var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
     return (this.match(matchAll) || []).map(function(scriptTag) {
       return (scriptTag.match(matchOne) || ['', ''])[1];
     });
-  },
+  }
 
-  evalScripts: function() {
+  function evalScripts() {
     return this.extractScripts().map(function(script) { return eval(script) });
-  },
+  }
 
-  escapeHTML: function() {
-    var self = arguments.callee;
-    self.text.data = this;
-    return self.div.innerHTML;
-  },
+  function escapeHTML() {
+    escapeHTML.text.data = this;
+    return escapeHTML.div.innerHTML;
+  }
 
-  unescapeHTML: function() {
-    var div = new Element('div');
+  function unescapeHTML() {
+    var div = document.createElement('div');
     div.innerHTML = this.stripTags();
     return div.childNodes[0] ? (div.childNodes.length > 1 ?
       $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
       div.childNodes[0].nodeValue) : '';
-  },
+  }
 
-  toQueryParams: function(separator) {
+  function toQueryParams(separator) {
     var match = this.strip().match(/([^?#]*)(#.*)?$/);
     if (!match) return { };
 
@@ -425,22 +526,22 @@
       }
       return hash;
     });
-  },
+  }
 
-  toArray: function() {
+  function toArray() {
     return this.split('');
-  },
+  }
 
-  succ: function() {
+  function succ() {
     return this.slice(0, this.length - 1) +
       String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
-  },
+  }
 
-  times: function(count) {
+  function times(count) {
     return count < 1 ? '' : new Array(count + 1).join(this);
-  },
+  }
 
-  camelize: function() {
+  function camelize() {
     var parts = this.split('-'), len = parts.length;
     if (len == 1) return parts[0];
 
@@ -452,102 +553,130 @@
       camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
 
     return camelized;
-  },
+  }
 
-  capitalize: function() {
+  function capitalize() {
     return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
-  },
+  }
 
-  underscore: function() {
+  function underscore() {
     return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
-  },
+  }
 
-  dasherize: function() {
+  function dasherize() {
     return this.gsub(/_/,'-');
-  },
+  }
 
-  inspect: function(useDoubleQuotes) {
+  function inspect(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() {
+  function toJSON() {
     return this.inspect(true);
-  },
+  }
 
-  unfilterJSON: function(filter) {
+  function unfilterJSON(filter) {
     return this.sub(filter || Prototype.JSONFilter, '#{1}');
-  },
+  }
 
-  isJSON: function() {
+  function isJSON() {
     var str = this;
     if (str.blank()) return false;
     str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
     return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
-  },
+  }
 
-  evalJSON: function(sanitize) {
+  function evalJSON(sanitize) {
     var json = this.unfilterJSON();
     try {
       if (!sanitize || json.isJSON()) return eval('(' + json + ')');
     } catch (e) { }
     throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
-  },
+  }
 
-  include: function(pattern) {
+  function include(pattern) {
     return this.indexOf(pattern) > -1;
-  },
+  }
 
-  startsWith: function(pattern) {
+  function startsWith(pattern) {
     return this.indexOf(pattern) === 0;
-  },
+  }
 
-  endsWith: function(pattern) {
+  function endsWith(pattern) {
     var d = this.length - pattern.length;
     return d >= 0 && this.lastIndexOf(pattern) === d;
-  },
+  }
 
-  empty: function() {
+  function empty() {
     return this == '';
-  },
+  }
 
-  blank: function() {
+  function blank() {
     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,'>');
+  function interpolate(object, pattern) {
+    return new Template(this, pattern).evaluate(object);
   }
-});
 
-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;
+  return {
+    gsub:           gsub,
+    sub:            sub,
+    scan:           scan,
+    truncate:       truncate,
+    strip:          strip,
+    stripTags:      stripTags,
+    stripScripts:   stripScripts,
+    extractScripts: extractScripts,
+    evalScripts:    evalScripts,
+    escapeHTML:     escapeHTML,
+    unescapeHTML:   unescapeHTML,
+    toQueryParams:  toQueryParams,
+    parseQuery:     toQueryParams,
+    toArray:        toArray,
+    succ:           succ,
+    times:          times,
+    camelize:       camelize,
+    capitalize:     capitalize,
+    underscore:     underscore,
+    dasherize:      dasherize,
+    inspect:        inspect,
+    toJSON:         toJSON,
+    unfilterJSON:   unfilterJSON,
+    isJSON:         isJSON,
+    evalJSON:       evalJSON,
+    include:        include,
+    startsWith:     startsWith,
+    endsWith:       endsWith,
+    empty:          empty,
+    blank:          blank,
+    interpolate:    interpolate
+  };
+})());
 
 Object.extend(String.prototype.escapeHTML, {
   div:  document.createElement('div'),
   text: document.createTextNode('')
 });
 
-with (String.prototype.escapeHTML) div.appendChild(text);
+String.prototype.escapeHTML.div.appendChild(String.prototype.escapeHTML.text);
 
+if ('<\n>'.escapeHTML() !== '&lt;\n&gt;') {
+  String.prototype.escapeHTML = function() {
+    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
+  }
+}
+
+if ('&lt;\n&gt;'.unescapeHTML() !== '<\n>') {
+  String.prototype.unescapeHTML = function() {
+    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
+  }
+}
 var Template = Class.create({
   initialize: function(template, pattern) {
     this.template = template.toString();
@@ -578,101 +707,98 @@
       }
 
       return before + String.interpret(ctx);
-    }.bind(this));
+    });
   }
 });
 Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
 
 var $break = { };
 
-var Enumerable = {
-  each: function(iterator, context) {
+var Enumerable = (function() {
+  function each(iterator, context) {
     var index = 0;
-    iterator = iterator.bind(context);
     try {
       this._each(function(value) {
-        iterator(value, index++);
+        iterator.call(context, value, index++);
       });
     } catch (e) {
       if (e != $break) throw e;
     }
     return this;
-  },
+  }
 
-  eachSlice: function(number, iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function eachSlice(number, iterator, context) {
     var index = -number, slices = [], array = this.toArray();
+    if (number < 1) return array;
     while ((index += number) < array.length)
       slices.push(array.slice(index, index+number));
     return slices.collect(iterator, context);
-  },
+  }
 
-  all: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function all(iterator, context) {
+    iterator = iterator || Prototype.K;
     var result = true;
     this.each(function(value, index) {
-      result = result && !!iterator(value, index);
+      result = result && !!iterator.call(context, value, index);
       if (!result) throw $break;
     });
     return result;
-  },
+  }
 
-  any: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function any(iterator, context) {
+    iterator = iterator || Prototype.K;
     var result = false;
     this.each(function(value, index) {
-      if (result = !!iterator(value, index))
+      if (result = !!iterator.call(context, value, index))
         throw $break;
     });
     return result;
-  },
+  }
 
-  collect: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function collect(iterator, context) {
+    iterator = iterator || Prototype.K;
     var results = [];
     this.each(function(value, index) {
-      results.push(iterator(value, index));
+      results.push(iterator.call(context, value, index));
     });
     return results;
-  },
+  }
 
-  detect: function(iterator, context) {
-    iterator = iterator.bind(context);
+  function detect(iterator, context) {
     var result;
     this.each(function(value, index) {
-      if (iterator(value, index)) {
+      if (iterator.call(context, value, index)) {
         result = value;
         throw $break;
       }
     });
     return result;
-  },
+  }
 
-  findAll: function(iterator, context) {
-    iterator = iterator.bind(context);
+  function findAll(iterator, context) {
     var results = [];
     this.each(function(value, index) {
-      if (iterator(value, index))
+      if (iterator.call(context, value, index))
         results.push(value);
     });
     return results;
-  },
+  }
 
-  grep: function(filter, iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function grep(filter, iterator, context) {
+    iterator = iterator || Prototype.K;
     var results = [];
 
     if (Object.isString(filter))
-      filter = new RegExp(filter);
+      filter = new RegExp(RegExp.escape(filter));
 
     this.each(function(value, index) {
       if (filter.match(value))
-        results.push(iterator(value, index));
+        results.push(iterator.call(context, value, index));
     });
     return results;
-  },
+  }
 
-  include: function(object) {
+  function include(object) {
     if (Object.isFunction(this.indexOf))
       if (this.indexOf(object) != -1) return true;
 
@@ -684,96 +810,96 @@
       }
     });
     return found;
-  },
+  }
 
-  inGroupsOf: function(number, fillWith) {
+  function inGroupsOf(number, fillWith) {
     fillWith = Object.isUndefined(fillWith) ? null : fillWith;
     return this.eachSlice(number, function(slice) {
       while(slice.length < number) slice.push(fillWith);
       return slice;
     });
-  },
+  }
 
-  inject: function(memo, iterator, context) {
-    iterator = iterator.bind(context);
+  function inject(memo, iterator, context) {
     this.each(function(value, index) {
-      memo = iterator(memo, value, index);
+      memo = iterator.call(context, memo, value, index);
     });
     return memo;
-  },
+  }
 
-  invoke: function(method) {
+  function invoke(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;
+  function max(iterator, context) {
+    iterator = iterator || Prototype.K;
     var result;
     this.each(function(value, index) {
-      value = iterator(value, index);
+      value = iterator.call(context, value, index);
       if (result == null || value >= result)
         result = value;
     });
     return result;
-  },
+  }
 
-  min: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function min(iterator, context) {
+    iterator = iterator || Prototype.K;
     var result;
     this.each(function(value, index) {
-      value = iterator(value, index);
+      value = iterator.call(context, value, index);
       if (result == null || value < result)
         result = value;
     });
     return result;
-  },
+  }
 
-  partition: function(iterator, context) {
-    iterator = iterator ? iterator.bind(context) : Prototype.K;
+  function partition(iterator, context) {
+    iterator = iterator || Prototype.K;
     var trues = [], falses = [];
     this.each(function(value, index) {
-      (iterator(value, index) ?
+      (iterator.call(context, value, index) ?
         trues : falses).push(value);
     });
     return [trues, falses];
-  },
+  }
 
-  pluck: function(property) {
+  function pluck(property) {
     var results = [];
     this.each(function(value) {
       results.push(value[property]);
     });
     return results;
-  },
+  }
 
-  reject: function(iterator, context) {
-    iterator = iterator.bind(context);
+  function reject(iterator, context) {
     var results = [];
     this.each(function(value, index) {
-      if (!iterator(value, index))
+      if (!iterator.call(context, value, index))
         results.push(value);
     });
     return results;
-  },
+  }
 
-  sortBy: function(iterator, context) {
-    iterator = iterator.bind(context);
+  function sortBy(iterator, context) {
     return this.map(function(value, index) {
-      return {value: value, criteria: iterator(value, index)};
+      return {
+        value: value,
+        criteria: iterator.call(context, value, index)
+      };
     }).sort(function(left, right) {
       var a = left.criteria, b = right.criteria;
       return a < b ? -1 : a > b ? 1 : 0;
     }).pluck('value');
-  },
+  }
 
-  toArray: function() {
+  function toArray() {
     return this.map();
-  },
+  }
 
-  zip: function() {
+  function zip() {
     var iterator = Prototype.K, args = $A(arguments);
     if (Object.isFunction(args.last()))
       iterator = args.pop();
@@ -782,126 +908,152 @@
     return this.map(function(value, index) {
       return iterator(collections.pluck(index));
     });
-  },
+  }
 
-  size: function() {
+  function size() {
     return this.toArray().length;
-  },
+  }
 
-  inspect: function() {
+  function inspect() {
     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
-});
+
+
+
+
+
+
+
+
+  return {
+    each:       each,
+    eachSlice:  eachSlice,
+    all:        all,
+    every:      all,
+    any:        any,
+    some:       any,
+    collect:    collect,
+    map:        collect,
+    detect:     detect,
+    findAll:    findAll,
+    select:     findAll,
+    filter:     findAll,
+    grep:       grep,
+    include:    include,
+    member:     include,
+    inGroupsOf: inGroupsOf,
+    inject:     inject,
+    invoke:     invoke,
+    max:        max,
+    min:        min,
+    partition:  partition,
+    pluck:      pluck,
+    reject:     reject,
+    sortBy:     sortBy,
+    toArray:    toArray,
+    entries:    toArray,
+    zip:        zip,
+    size:       size,
+    inspect:    inspect,
+    find:       detect
+  };
+})();
 function $A(iterable) {
   if (!iterable) return [];
-  if (iterable.toArray) return iterable.toArray();
+  if ('toArray' in iterable) return iterable.toArray();
   var length = iterable.length || 0, 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 || 0, results = new Array(length);
-    while (length--) results[length] = iterable[length];
-    return results;
-  }
+function $w(string) {
+  if (!Object.isString(string)) return [];
+  string = string.strip();
+  return string ? string.split(/\s+/) : [];
 }
 
 Array.from = $A;
 
-Object.extend(Array.prototype, Enumerable);
 
-if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
+(function() {
+  var arrayProto = Array.prototype,
+      slice = arrayProto.slice,
+      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available
 
-Object.extend(Array.prototype, {
-  _each: function(iterator) {
+  function each(iterator) {
     for (var i = 0, length = this.length; i < length; i++)
       iterator(this[i]);
-  },
+  }
+  if (!_each) _each = each;
 
-  clear: function() {
+  function clear() {
     this.length = 0;
     return this;
-  },
+  }
 
-  first: function() {
+  function first() {
     return this[0];
-  },
+  }
 
-  last: function() {
+  function last() {
     return this[this.length - 1];
-  },
+  }
 
-  compact: function() {
+  function compact() {
     return this.select(function(value) {
       return value != null;
     });
-  },
+  }
 
-  flatten: function() {
+  function flatten() {
     return this.inject([], function(array, value) {
-      return array.concat(Object.isArray(value) ?
-        value.flatten() : [value]);
+      if (Object.isArray(value))
+        return array.concat(value.flatten());
+      array.push(value);
+      return array;
     });
-  },
+  }
 
-  without: function() {
-    var values = $A(arguments);
+  function without() {
+    var values = slice.call(arguments, 0);
     return this.select(function(value) {
       return !values.include(value);
     });
-  },
+  }
 
-  reverse: function(inline) {
+  function reverse(inline) {
     return (inline !== false ? this : this.toArray())._reverse();
-  },
-
-  reduce: function() {
-    return this.length > 1 ? this : this[0];
-  },
+  }
 
-  uniq: function(sorted) {
+  function uniq(sorted) {
     return this.inject([], function(array, value, index) {
       if (0 == index || (sorted ? array.last() != value : !array.include(value)))
         array.push(value);
       return array;
     });
-  },
+  }
 
-  intersect: function(array) {
+  function intersect(array) {
     return this.uniq().findAll(function(item) {
       return array.detect(function(value) { return item === value });
     });
-  },
+  }
 
-  clone: function() {
-    return [].concat(this);
-  },
 
-  size: function() {
+  function clone() {
+    return slice.call(this, 0);
+  }
+
+  function size() {
     return this.length;
-  },
+  }
 
-  inspect: function() {
+  function inspect() {
     return '[' + this.map(Object.inspect).join(', ') + ']';
-  },
+  }
 
-  toJSON: function() {
+  function toJSON() {
     var results = [];
     this.each(function(object) {
       var value = Object.toJSON(object);
@@ -909,203 +1061,270 @@
     });
     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+/) : [];
-}
+  function indexOf(item, i) {
+    i || (i = 0);
+    var length = this.length;
+    if (i < 0) i = length + i;
+    for (; i < length; i++)
+      if (this[i] === item) return i;
+    return -1;
+  }
+
+  function lastIndexOf(item, i) {
+    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
+    var n = this.slice(0, i).reverse().indexOf(item);
+    return (n < 0) ? n : i - n - 1;
+  }
 
-if (Prototype.Browser.Opera){
-  Array.prototype.concat = function() {
-    var array = [];
-    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
+  function concat() {
+    var array = slice.call(this, 0), item;
     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]);
+      item = arguments[i];
+      if (Object.isArray(item) && !('callee' in item)) {
+        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
+          array.push(item[j]);
       } else {
-        array.push(arguments[i]);
+        array.push(item);
       }
     }
     return array;
-  };
-}
-Object.extend(Number.prototype, {
-  toColorPart: function() {
-    return this.toPaddedString(2, 16);
-  },
+  }
 
-  succ: function() {
-    return this + 1;
-  },
+  Object.extend(arrayProto, Enumerable);
 
-  times: function(iterator) {
-    $R(0, this, true).each(iterator);
-    return this;
-  },
+  if (!arrayProto._reverse)
+    arrayProto._reverse = arrayProto.reverse;
 
-  toPaddedString: function(length, radix) {
-    var string = this.toString(radix || 10);
-    return '0'.times(length - string.length) + string;
-  },
+  Object.extend(arrayProto, {
+    _each:     _each,
+    clear:     clear,
+    first:     first,
+    last:      last,
+    compact:   compact,
+    flatten:   flatten,
+    without:   without,
+    reverse:   reverse,
+    uniq:      uniq,
+    intersect: intersect,
+    clone:     clone,
+    toArray:   clone,
+    size:      size,
+    inspect:   inspect,
+    toJSON:    toJSON
+  });
 
-  toJSON: function() {
-    return isFinite(this) ? this.toString() : 'null';
-  }
-});
+  var CONCAT_ARGUMENTS_BUGGY = (function() {
+    return [].concat(arguments)[0][0] !== 1;
+  })(1,2)
 
-$w('abs round ceil floor').each(function(method){
-  Number.prototype[method] = Math[method].methodize();
-});
+  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;
+
+  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
+  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
+})();
 function $H(object) {
   return new Hash(object);
 };
 
-var Hash = Class.create(Enumerable, (function() {
+var Hash = Class.create(Enumerable, (function() {
+  function initialize(object) {
+    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
+  }
+
+  function _each(iterator) {
+    for (var key in this._object) {
+      var value = this._object[key], pair = [key, value];
+      pair.key = key;
+      pair.value = value;
+      iterator(pair);
+    }
+  }
+
+  function set(key, value) {
+    return this._object[key] = value;
+  }
+
+  function get(key) {
+    if (this._object[key] !== Object.prototype[key])
+      return this._object[key];
+  }
+
+  function unset(key) {
+    var value = this._object[key];
+    delete this._object[key];
+    return value;
+  }
+
+  function toObject() {
+    return Object.clone(this._object);
+  }
+
+  function keys() {
+    return this.pluck('key');
+  }
+
+  function values() {
+    return this.pluck('value');
+  }
+
+  function index(value) {
+    var match = this.detect(function(pair) {
+      return pair.value === value;
+    });
+    return match && match.key;
+  }
+
+  function merge(object) {
+    return this.clone().update(object);
+  }
+
+  function update(object) {
+    return new Hash(object).inject(this, function(result, pair) {
+      result.set(pair.key, pair.value);
+      return result;
+    });
+  }
 
   function toQueryPair(key, value) {
     if (Object.isUndefined(value)) return key;
     return key + '=' + encodeURIComponent(String.interpret(value));
   }
 
-  return {
-    initialize: function(object) {
-      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
-    },
-
-    _each: function(iterator) {
-      for (var key in this._object) {
-        var value = this._object[key], pair = [key, value];
-        pair.key = key;
-        pair.value = value;
-        iterator(pair);
-      }
-    },
+  function toQueryString() {
+    return this.inject([], function(results, pair) {
+      var key = encodeURIComponent(pair.key), values = pair.value;
+
+      if (values && typeof values == 'object') {
+        if (Object.isArray(values))
+          return results.concat(values.map(toQueryPair.curry(key)));
+      } else results.push(toQueryPair(key, values));
+      return results;
+    }).join('&');
+  }
 
-    set: function(key, value) {
-      return this._object[key] = value;
-    },
+  function inspect() {
+    return '#<Hash:{' + this.map(function(pair) {
+      return pair.map(Object.inspect).join(': ');
+    }).join(', ') + '}>';
+  }
 
-    get: function(key) {
-      return this._object[key];
-    },
+  function toJSON() {
+    return Object.toJSON(this.toObject());
+  }
 
-    unset: function(key) {
-      var value = this._object[key];
-      delete this._object[key];
-      return value;
-    },
+  function clone() {
+    return new Hash(this);
+  }
 
-    toObject: function() {
-      return Object.clone(this._object);
-    },
+  return {
+    initialize:             initialize,
+    _each:                  _each,
+    set:                    set,
+    get:                    get,
+    unset:                  unset,
+    toObject:               toObject,
+    toTemplateReplacements: toObject,
+    keys:                   keys,
+    values:                 values,
+    index:                  index,
+    merge:                  merge,
+    update:                 update,
+    toQueryString:          toQueryString,
+    inspect:                inspect,
+    toJSON:                 toJSON,
+    clone:                  clone
+  };
+})());
 
-    keys: function() {
-      return this.pluck('key');
-    },
+Hash.from = $H;
+Object.extend(Number.prototype, (function() {
+  function toColorPart() {
+    return this.toPaddedString(2, 16);
+  }
 
-    values: function() {
-      return this.pluck('value');
-    },
+  function succ() {
+    return this + 1;
+  }
 
-    index: function(value) {
-      var match = this.detect(function(pair) {
-        return pair.value === value;
-      });
-      return match && match.key;
-    },
+  function times(iterator, context) {
+    $R(0, this, true).each(iterator, context);
+    return this;
+  }
 
-    merge: function(object) {
-      return this.clone().update(object);
-    },
+  function toPaddedString(length, radix) {
+    var string = this.toString(radix || 10);
+    return '0'.times(length - string.length) + string;
+  }
 
-    update: function(object) {
-      return new Hash(object).inject(this, function(result, pair) {
-        result.set(pair.key, pair.value);
-        return result;
-      });
-    },
+  function toJSON() {
+    return isFinite(this) ? this.toString() : 'null';
+  }
 
-    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('&');
-    },
+  function abs() {
+    return Math.abs(this);
+  }
 
-    inspect: function() {
-      return '#<Hash:{' + this.map(function(pair) {
-        return pair.map(Object.inspect).join(': ');
-      }).join(', ') + '}>';
-    },
+  function round() {
+    return Math.round(this);
+  }
 
-    toJSON: function() {
-      return Object.toJSON(this.toObject());
-    },
+  function ceil() {
+    return Math.ceil(this);
+  }
 
-    clone: function() {
-      return new Hash(this);
-    }
+  function floor() {
+    return Math.floor(this);
   }
+
+  return {
+    toColorPart:    toColorPart,
+    succ:           succ,
+    times:          times,
+    toPaddedString: toPaddedString,
+    toJSON:         toJSON,
+    abs:            abs,
+    round:          round,
+    ceil:           ceil,
+    floor:          floor
+  };
 })());
 
-Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
-Hash.from = $H;
-var ObjectRange = Class.create(Enumerable, {
-  initialize: function(start, end, exclusive) {
+function $R(start, end, exclusive) {
+  return new ObjectRange(start, end, exclusive);
+}
+
+var ObjectRange = Class.create(Enumerable, (function() {
+  function initialize(start, end, exclusive) {
     this.start = start;
     this.end = end;
     this.exclusive = exclusive;
-  },
+  }
 
-  _each: function(iterator) {
+  function _each(iterator) {
     var value = this.start;
     while (this.include(value)) {
       iterator(value);
       value = value.succ();
     }
-  },
+  }
 
-  include: function(value) {
+  function include(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);
-};
+  return {
+    initialize: initialize,
+    _each:      _each,
+    include:    include
+  };
+})());
+
+
 
 var Ajax = {
   getTransport: function() {
@@ -1152,7 +1371,6 @@
   onCreate:   function() { Ajax.activeRequestCount++ },
   onComplete: function() { Ajax.activeRequestCount-- }
 });
-
 Ajax.Base = Class.create({
   initialize: function(options) {
     this.options = {
@@ -1174,7 +1392,6 @@
       this.options.parameters = this.options.parameters.toObject();
   }
 });
-
 Ajax.Request = Class.create(Ajax.Base, {
   _complete: false,
 
@@ -1190,7 +1407,6 @@
     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';
     }
@@ -1198,7 +1414,6 @@
     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))
@@ -1257,7 +1472,6 @@
             headers['Connection'] = 'close';
     }
 
-    // user-defined headers
     if (typeof this.options.requestHeaders == 'object') {
       var extras = this.options.requestHeaders;
 
@@ -1298,7 +1512,7 @@
 
       var contentType = response.getHeader('Content-type');
       if (this.options.evalJS == 'force'
-          || (this.options.evalJS && contentType
+          || (this.options.evalJS && this.isSameOrigin() && contentType
           && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
         this.evalResponse();
     }
@@ -1311,15 +1525,23 @@
     }
 
     if (state == 'Complete') {
-      // avoid memory leak in MSIE: clean up
       this.transport.onreadystatechange = Prototype.emptyFunction;
     }
   },
 
+  isSameOrigin: function() {
+    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
+    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
+      protocol: location.protocol,
+      domain: document.domain,
+      port: location.port ? ':' + location.port : ''
+    }));
+  },
+
   getHeader: function(name) {
     try {
       return this.transport.getResponseHeader(name) || null;
-    } catch (e) { return null }
+    } catch (e) { return null; }
   },
 
   evalResponse: function() {
@@ -1339,6 +1561,13 @@
 Ajax.Request.Events =
   ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
 
+
+
+
+
+
+
+
 Ajax.Response = Class.create({
   initialize: function(request){
     this.request = request;
@@ -1360,6 +1589,7 @@
   },
 
   status:      0,
+
   statusText: '',
 
   getStatus: Ajax.Request.prototype.getStatus,
@@ -1391,7 +1621,8 @@
     if (!json) return null;
     json = decodeURIComponent(escape(json));
     try {
-      return json.evalJSON(this.request.options.sanitizeJSON);
+      return json.evalJSON(this.request.options.sanitizeJSON ||
+        !this.request.isSameOrigin());
     } catch (e) {
       this.request.dispatchException(e);
     }
@@ -1404,7 +1635,8 @@
         this.responseText.blank())
           return null;
     try {
-      return this.responseText.evalJSON(options.sanitizeJSON);
+      return this.responseText.evalJSON(options.sanitizeJSON ||
+        !this.request.isSameOrigin());
     } catch (e) {
       this.request.dispatchException(e);
     }
@@ -1487,6 +1719,9 @@
     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++)
@@ -1514,7 +1749,6 @@
 if (!window.Node) var Node = { };
 
 if (!Node.ELEMENT_NODE) {
-  // DOM level 2 ECMAScript Language Binding
   Object.extend(Node, {
     ELEMENT_NODE: 1,
     ATTRIBUTE_NODE: 2,
@@ -1531,13 +1765,30 @@
   });
 }
 
-(function() {
-  var element = this.Element;
-  this.Element = function(tagName, attributes) {
+
+(function(global) {
+
+  var SETATTRIBUTE_IGNORES_NAME = (function(){
+    var elForm = document.createElement("form");
+    var elInput = document.createElement("input");
+    var root = document.documentElement;
+    elInput.setAttribute("name", "test");
+    elForm.appendChild(elInput);
+    root.appendChild(elForm);
+    var isBuggy = elForm.elements
+      ? (typeof elForm.elements.test == "undefined")
+      : null;
+    root.removeChild(elForm);
+    elForm = elInput = null;
+    return isBuggy;
+  })();
+
+  var element = global.Element;
+  global.Element = function(tagName, attributes) {
     attributes = attributes || { };
     tagName = tagName.toLowerCase();
     var cache = Element.cache;
-    if (Prototype.Browser.IE && attributes.name) {
+    if (SETATTRIBUTE_IGNORES_NAME && attributes.name) {
       tagName = '<' + tagName + ' name="' + attributes.name + '">';
       delete attributes.name;
       return Element.writeAttribute(document.createElement(tagName), attributes);
@@ -1545,10 +1796,12 @@
     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);
+  Object.extend(global.Element, element || { });
+  if (element) global.Element.prototype = element.prototype;
+})(this);
 
 Element.cache = { };
+Element.idCounter = 1;
 
 Element.Methods = {
   visible: function(element) {
@@ -1561,13 +1814,16 @@
     return element;
   },
 
+
   hide: function(element) {
-    $(element).style.display = 'none';
+    element = $(element);
+    element.style.display = 'none';
     return element;
   },
 
   show: function(element) {
-    $(element).style.display = '';
+    element = $(element);
+    element.style.display = '';
     return element;
   },
 
@@ -1577,15 +1833,89 @@
     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;
-  },
+  update: (function(){
+
+    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
+      var el = document.createElement("select"),
+          isBuggy = true;
+      el.innerHTML = "<option value=\"test\">test</option>";
+      if (el.options && el.options[0]) {
+        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
+      }
+      el = null;
+      return isBuggy;
+    })();
+
+    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
+      try {
+        var el = document.createElement("table");
+        if (el && el.tBodies) {
+          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
+          var isBuggy = typeof el.tBodies[0] == "undefined";
+          el = null;
+          return isBuggy;
+        }
+      } catch (e) {
+        return true;
+      }
+    })();
+
+    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
+      var s = document.createElement("script"),
+          isBuggy = false;
+      try {
+        s.appendChild(document.createTextNode(""));
+        isBuggy = !s.firstChild ||
+          s.firstChild && s.firstChild.nodeType !== 3;
+      } catch (e) {
+        isBuggy = true;
+      }
+      s = null;
+      return isBuggy;
+    })();
+
+    function update(element, content) {
+      element = $(element);
+
+      if (content && content.toElement)
+        content = content.toElement();
+
+      if (Object.isElement(content))
+        return element.update().insert(content);
+
+      content = Object.toHTML(content);
+
+      var tagName = element.tagName.toUpperCase();
+
+      if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
+        element.text = content;
+        return element;
+      }
+
+      if (SELECT_ELEMENT_INNERHTML_BUGGY || TABLE_ELEMENT_INNERHTML_BUGGY) {
+        if (tagName in Element._insertionTranslations.tags) {
+          $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();
+        }
+      }
+      else {
+        element.innerHTML = content.stripScripts();
+      }
+
+      content.evalScripts.bind(content).defer();
+      return element;
+    }
+
+    return update;
+  })(),
 
   replace: function(element, content) {
     element = $(element);
@@ -1610,7 +1940,7 @@
 
     var content, insert, tagName, childNodes;
 
-    for (position in insertions) {
+    for (var position in insertions) {
       content  = insertions[position];
       position = position.toLowerCase();
       insert = Element._insertionTranslations[position];
@@ -1674,7 +2004,7 @@
   },
 
   descendants: function(element) {
-    return $(element).getElementsBySelector("*");
+    return Element.select(element, "*");
   },
 
   firstDescendant: function(element) {
@@ -1721,7 +2051,7 @@
     element = $(element);
     if (arguments.length == 1) return element.firstDescendant();
     return Object.isNumber(expression) ? element.descendants()[expression] :
-      element.select(expression)[index || 0];
+      Element.select(element, expression)[index || 0];
   },
 
   previous: function(element, expression, index) {
@@ -1740,6 +2070,7 @@
       Selector.findElement(nextSiblings, expression, index);
   },
 
+
   select: function() {
     var args = $A(arguments), element = $(args.shift());
     return Selector.findChildElements(element, args);
@@ -1752,26 +2083,49 @@
 
   identify: function(element) {
     element = $(element);
-    var id = element.readAttribute('id'), self = arguments.callee;
+    var id = element.readAttribute('id');
     if (id) return id;
-    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
+    do { id = 'anonymous_element_' + Element.idCounter++ } 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;
+  readAttribute: (function(){
+
+    var iframeGetAttributeThrowsError = (function(){
+      var el = document.createElement('iframe'),
+          isBuggy = false;
+
+      document.documentElement.appendChild(el);
+      try {
+        el.getAttribute('type', 2);
+      } catch(e) {
+        isBuggy = true;
+      }
+      document.documentElement.removeChild(el);
+      el = null;
+      return isBuggy;
+    })();
+
+    return function(element, name) {
+      element = $(element);
+      if (iframeGetAttributeThrowsError &&
+          name === 'type' &&
+          element.tagName.toUpperCase() == 'IFRAME') {
+        return element.getAttribute('type');
+      }
+      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);
     }
-    return element.getAttribute(name);
-  },
+  })(),
 
   writeAttribute: function(element, name, value) {
     element = $(element);
@@ -1832,7 +2186,6 @@
       'removeClassName' : 'addClassName'](className);
   },
 
-  // removes whitespace-only text node children
   cleanWhitespace: function(element) {
     element = $(element);
     var node = element.firstChild;
@@ -1851,23 +2204,16 @@
 
   descendantOf: function(element, ancestor) {
     element = $(element), ancestor = $(ancestor);
-    var originalAncestor = 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);
-    }
+    if (ancestor.contains)
+      return ancestor.contains(element) && ancestor !== element;
 
     while (element = element.parentNode)
-      if (element == originalAncestor) return true;
+      if (element == ancestor) return true;
+
     return false;
   },
 
@@ -1882,7 +2228,7 @@
     element = $(element);
     style = style == 'float' ? 'cssFloat' : style.camelize();
     var value = element.style[style];
-    if (!value) {
+    if (!value || value == 'auto') {
       var css = document.defaultView.getComputedStyle(element, null);
       value = css ? css[style] : null;
     }
@@ -1921,18 +2267,17 @@
 
   getDimensions: function(element) {
     element = $(element);
-    var display = $(element).getStyle('display');
+    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';
+    if (originalPosition != 'fixed') // Switching fixed to absolute causes issues in Safari
+      els.position = 'absolute';
     els.display = 'block';
     var originalWidth = element.clientWidth;
     var originalHeight = element.clientHeight;
@@ -1948,9 +2293,7 @@
     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) {
+      if (Prototype.Browser.Opera) {
         element.style.top = 0;
         element.style.left = 0;
       }
@@ -2005,9 +2348,9 @@
       valueL += element.offsetLeft || 0;
       element = element.offsetParent;
       if (element) {
-        if (element.tagName == 'BODY') break;
+        if (element.tagName.toUpperCase() == 'BODY') break;
         var p = Element.getStyle(element, 'position');
-        if (p == 'relative' || p == 'absolute') break;
+        if (p !== 'static') break;
       }
     } while (element);
     return Element._returnOffset(valueL, valueT);
@@ -2015,8 +2358,7 @@
 
   absolutize: function(element) {
     element = $(element);
-    if (element.getStyle('position') == 'absolute') return;
-    // Position.prepare(); // To be done manually by Scripty when it needs it.
+    if (element.getStyle('position') == 'absolute') return element;
 
     var offsets = element.positionedOffset();
     var top     = offsets[1];
@@ -2039,8 +2381,7 @@
 
   relativize: function(element) {
     element = $(element);
-    if (element.getStyle('position') == 'relative') return;
-    // Position.prepare(); // To be done manually by Scripty when it needs it.
+    if (element.getStyle('position') == 'relative') return element;
 
     element.style.position = 'relative';
     var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
@@ -2082,7 +2423,6 @@
       valueT += element.offsetTop  || 0;
       valueL += element.offsetLeft || 0;
 
-      // Safari fix
       if (element.offsetParent == document.body &&
         Element.getStyle(element, 'position') == 'absolute') break;
 
@@ -2090,7 +2430,7 @@
 
     element = forElement;
     do {
-      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
+      if (!Prototype.Browser.Opera || (element.tagName && (element.tagName.toUpperCase() == 'BODY'))) {
         valueT -= element.scrollTop  || 0;
         valueL -= element.scrollLeft || 0;
       }
@@ -2109,28 +2449,22 @@
       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';
@@ -2139,10 +2473,9 @@
   }
 };
 
-Element.Methods.identify.counter = 1;
-
 Object.extend(Element.Methods, {
   getElementsBySelector: Element.Methods.select,
+
   childElements: Element.Methods.immediateDescendants
 });
 
@@ -2163,11 +2496,8 @@
         case 'left': case 'top': case 'right': case 'bottom':
           if (proceed(element, 'position') === 'static') return null;
         case 'height': case 'width':
-          // returns '0px' for hidden elements; we want it to return null
           if (!Element.visible(element)) return null;
 
-          // returns the border-box dimensions rather than the content-box
-          // dimensions, so we subtract padding and borders from the value
           var dim = parseInt(proceed(element, style), 10);
 
           if (dim !== element['offset' + style.capitalize()])
@@ -2200,12 +2530,31 @@
 }
 
 else if (Prototype.Browser.IE) {
-  $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
+  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
+    function(proceed, element) {
+      element = $(element);
+      try { element.offsetParent }
+      catch(e) { return $(document.body) }
+      var position = element.getStyle('position');
+      if (position !== 'static') return proceed(element);
+      element.setStyle({ position: 'relative' });
+      var value = proceed(element);
+      element.setStyle({ position: position });
+      return value;
+    }
+  );
+
+  $w('positionedOffset viewportOffset').each(function(method) {
     Element.Methods[method] = Element.Methods[method].wrap(
       function(proceed, element) {
         element = $(element);
+        try { element.offsetParent }
+        catch(e) { return Element._returnOffset(0,0) }
         var position = element.getStyle('position');
-        if (position != 'static') return proceed(element);
+        if (position !== 'static') return proceed(element);
+        var offsetParent = element.getOffsetParent();
+        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
+          offsetParent.setStyle({ zoom: 1 });
         element.setStyle({ position: 'relative' });
         var value = proceed(element);
         element.setStyle({ position: position });
@@ -2214,6 +2563,14 @@
     );
   });
 
+  Element.Methods.cumulativeOffset = Element.Methods.cumulativeOffset.wrap(
+    function(proceed, element) {
+      try { element.offsetParent }
+      catch(e) { return Element._returnOffset(0,0) }
+      return proceed(element);
+    }
+  );
+
   Element.Methods.getStyle = function(element, style) {
     element = $(element);
     style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
@@ -2255,39 +2612,95 @@
     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) {
-          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();
+  Element._attributeTranslations = (function(){
+
+    var classProp = 'className';
+    var forProp = 'for';
+
+    var el = document.createElement('div');
+
+    el.setAttribute(classProp, 'x');
+
+    if (el.className !== 'x') {
+      el.setAttribute('class', 'x');
+      if (el.className === 'x') {
+        classProp = 'class';
+      }
+    }
+    el = null;
+
+    el = document.createElement('label');
+    el.setAttribute(forProp, 'x');
+    if (el.htmlFor !== 'x') {
+      el.setAttribute('htmlFor', 'x');
+      if (el.htmlFor === 'x') {
+        forProp = 'htmlFor';
+      }
+    }
+    el = null;
+
+    return {
+      read: {
+        names: {
+          'class':      classProp,
+          'className':  classProp,
+          'for':        forProp,
+          'htmlFor':    forProp
         },
-        title: function(element) {
-          return element.title;
+        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(){
+
+            var el = document.createElement('div');
+            el.onclick = Prototype.emptyFunction;
+            var value = el.getAttribute('onclick');
+            var f;
+
+            if (String(value).indexOf('{') > -1) {
+              f = function(element, attribute) {
+                attribute = element.getAttribute(attribute);
+                if (!attribute) return null;
+                attribute = attribute.toString();
+                attribute = attribute.split('{')[1];
+                attribute = attribute.split('}')[0];
+                return attribute.strip();
+              }
+            }
+            else if (value === '') {
+              f = function(element, attribute) {
+                attribute = element.getAttribute(attribute);
+                if (!attribute) return null;
+                return attribute.strip();
+              }
+            }
+            el = null;
+            return f;
+          })(),
+          _flag: function(element, attribute) {
+            return $(element).hasAttribute(attribute) ? attribute : null;
+          },
+          style: function(element) {
+            return element.style.cssText.toLowerCase();
+          },
+          title: function(element) {
+            return element.title;
+          }
         }
       }
     }
-  };
+  })();
 
   Element._attributeTranslations.write = {
-    names: Object.clone(Element._attributeTranslations.read.names),
+    names: Object.extend({
+      cellpadding: 'cellPadding',
+      cellspacing: 'cellSpacing'
+    }, Element._attributeTranslations.read.names),
     values: {
       checked: function(element, value) {
         element.checked = !!value;
@@ -2302,7 +2715,7 @@
   Element._attributeTranslations.has = {};
 
   $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
-      'encType maxLength readOnly longDesc').each(function(attr) {
+      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
     Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
     Element._attributeTranslations.has[attr.toLowerCase()] = attr;
   });
@@ -2337,6 +2750,26 @@
       onchange:    v._getEv
     });
   })(Element._attributeTranslations.read.values);
+
+  if (Prototype.BrowserFeatures.ElementExtensions) {
+    (function() {
+      function _descendants(element) {
+        var nodes = element.getElementsByTagName('*'), results = [];
+        for (var i = 0, node; node = nodes[i]; i++)
+          if (node.tagName !== "!") // Filter out comment nodes.
+            results.push(node);
+        return results;
+      }
+
+      Element.Methods.down = function(element, expression, index) {
+        element = $(element);
+        if (arguments.length == 1) return element.firstDescendant();
+        return Object.isNumber(expression) ? _descendants(element)[expression] :
+          Element.select(element, expression)[index || 0];
+      }
+    })();
+  }
+
 }
 
 else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
@@ -2355,7 +2788,7 @@
       (value < 0.00001) ? 0 : value;
 
     if (value == 1)
-      if(element.tagName == 'IMG' && element.width) {
+      if(element.tagName.toUpperCase() == 'IMG' && element.width) {
         element.width++; element.width--;
       } else try {
         var n = document.createTextNode(' ');
@@ -2366,9 +2799,6 @@
     return element;
   };
 
-  // Safari returns margins on body which is incorrect if the child is absolutely
-  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
-  // KHTML/WebKit only.
   Element.Methods.cumulativeOffset = function(element) {
     var valueT = 0, valueL = 0;
     do {
@@ -2384,30 +2814,7 @@
   };
 }
 
-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) {
+if ('outerHTML' in document.documentElement) {
   Element.Methods.replace = function(element, content) {
     element = $(element);
 
@@ -2486,7 +2893,7 @@
   hasAttribute: function(element, attribute) {
     attribute = Element._attributeTranslations.has[attribute] || attribute;
     var node = $(element).getAttributeNode(attribute);
-    return node && node.specified;
+    return !!(node && node.specified);
   }
 };
 
@@ -2494,41 +2901,87 @@
 
 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;
-}
+(function(div) {
+
+  if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']) {
+    window.HTMLElement = { };
+    window.HTMLElement.prototype = div['__proto__'];
+    Prototype.BrowserFeatures.ElementExtensions = true;
+  }
+
+  div = null;
+
+})(document.createElement('div'))
 
 Element.extend = (function() {
-  if (Prototype.BrowserFeatures.SpecificElementExtensions)
+
+  function checkDeficiency(tagName) {
+    if (typeof window.Element != 'undefined') {
+      var proto = window.Element.prototype;
+      if (proto) {
+        var id = '_' + (Math.random()+'').slice(2);
+        var el = document.createElement(tagName);
+        proto[id] = 'x';
+        var isBuggy = (el[id] !== 'x');
+        delete proto[id];
+        el = null;
+        return isBuggy;
+      }
+    }
+    return false;
+  }
+
+  function extendElementWith(element, methods) {
+    for (var property in methods) {
+      var value = methods[property];
+      if (Object.isFunction(value) && !(property in element))
+        element[property] = value.methodize();
+    }
+  }
+
+  var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');
+  var HTMLAPPLETELEMENT_PROTOTYPE_BUGGY = checkDeficiency('applet');
+
+  if (Prototype.BrowserFeatures.SpecificElementExtensions) {
+    if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY &&
+        HTMLAPPLETELEMENT_PROTOTYPE_BUGGY) {
+      return function(element) {
+        if (element && element.tagName) {
+          var tagName = element.tagName.toUpperCase();
+          if (tagName === 'OBJECT' || tagName === 'APPLET') {
+            extendElementWith(element, Element.Methods);
+            if (tagName === 'OBJECT') {
+              extendElementWith(element, Element.Methods.ByTag.OBJECT)
+            }
+            else if (tagName === 'APPLET') {
+              extendElementWith(element, Element.Methods.ByTag.APPLET)
+            }
+          }
+        }
+        return element;
+      }
+    }
     return Prototype.K;
+  }
 
   var Methods = { }, ByTag = Element.Methods.ByTag;
 
   var extend = Object.extend(function(element) {
-    if (!element || element._extendedByPrototype ||
+    if (!element || typeof element._extendedByPrototype != 'undefined' ||
         element.nodeType != 1 || element == window) return element;
 
     var methods = Object.clone(Methods),
-      tagName = element.tagName, property, value;
+        tagName = element.tagName.toUpperCase();
 
-    // 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();
-    }
+    extendElementWith(element, methods);
 
     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);
@@ -2607,14 +3060,18 @@
     klass = 'HTML' + tagName.capitalize() + 'Element';
     if (window[klass]) return window[klass];
 
-    window[klass] = { };
-    window[klass].prototype = document.createElement(tagName).__proto__;
-    return window[klass];
+    var element = document.createElement(tagName);
+    var proto = element['__proto__'] || element.constructor.prototype;
+    element = null;
+    return proto;
   }
 
+  var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
+   Element.prototype;
+
   if (F.ElementExtensions) {
-    copy(Element.Methods, HTMLElement.prototype);
-    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
+    copy(Element.Methods, elementPrototype);
+    copy(Element.Methods.Simulated, elementPrototype, true);
   }
 
   if (F.SpecificElementExtensions) {
@@ -2625,73 +3082,194 @@
     }
   }
 
-  Object.extend(Element, Element.Methods);
-  delete Element.ByTag;
+  Object.extend(Element, Element.Methods);
+  delete Element.ByTag;
+
+  if (Element.extend.refresh) Element.extend.refresh();
+  Element.cache = { };
+};
+
+
+document.viewport = {
+
+  getDimensions: function() {
+    return { width: this.getWidth(), height: this.getHeight() };
+  },
+
+  getScrollOffsets: function() {
+    return Element._returnOffset(
+      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
+      window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
+  }
+};
+
+(function(viewport) {
+  var B = Prototype.Browser, doc = document, element, property = {};
+
+  function getRootElement() {
+    if (B.WebKit && !doc.evaluate)
+      return document;
+
+    if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
+      return document.body;
+
+    return document.documentElement;
+  }
+
+  function define(D) {
+    if (!element) element = getRootElement();
+
+    property[D] = 'client' + D;
+
+    viewport['get' + D] = function() { return element[property[D]] };
+    return viewport['get' + D]();
+  }
+
+  viewport.getWidth  = define.curry('Width');
+
+  viewport.getHeight = define.curry('Height');
+})(document.viewport);
 
-  if (Element.extend.refresh) Element.extend.refresh();
-  Element.cache = { };
+
+Element.Storage = {
+  UID: 1
 };
 
-document.viewport = {
-  getDimensions: function() {
-    var dimensions = { };
-    var B = Prototype.Browser;
-    $w('width height').each(function(d) {
-      var D = d.capitalize();
-      dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
-        (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
-    });
-    return dimensions;
+Element.addMethods({
+  getStorage: function(element) {
+    if (!(element = $(element))) return;
+
+    var uid;
+    if (element === window) {
+      uid = 0;
+    } else {
+      if (typeof element._prototypeUID === "undefined")
+        element._prototypeUID = [Element.Storage.UID++];
+      uid = element._prototypeUID[0];
+    }
+
+    if (!Element.Storage[uid])
+      Element.Storage[uid] = $H();
+
+    return Element.Storage[uid];
   },
 
-  getWidth: function() {
-    return this.getDimensions().width;
+  store: function(element, key, value) {
+    if (!(element = $(element))) return;
+
+    if (arguments.length === 2) {
+      element.getStorage().update(key);
+    } else {
+      element.getStorage().set(key, value);
+    }
+
+    return element;
   },
 
-  getHeight: function() {
-    return this.getDimensions().height;
+  retrieve: function(element, key, defaultValue) {
+    if (!(element = $(element))) return;
+    var hash = Element.getStorage(element), value = hash.get(key);
+
+    if (Object.isUndefined(value)) {
+      hash.set(key, defaultValue);
+      value = defaultValue;
+    }
+
+    return value;
   },
 
-  getScrollOffsets: function() {
-    return Element._returnOffset(
-      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
-      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
+  clone: function(element, deep) {
+    if (!(element = $(element))) return;
+    var clone = element.cloneNode(deep);
+    clone._prototypeUID = void 0;
+    if (deep) {
+      var descendants = Element.select(clone, '*'),
+          i = descendants.length;
+      while (i--) {
+        descendants[i]._prototypeUID = void 0;
+      }
+    }
+    return Element.extend(clone);
   }
-};
-/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
+});
+/* 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();
+
+    if (this.shouldUseSelectorsAPI()) {
+      this.mode = 'selectorsAPI';
+    } else if (this.shouldUseXPath()) {
+      this.mode = 'xpath';
+      this.compileXPathMatcher();
+    } else {
+      this.mode = "normal";
+      this.compileMatcher();
+    }
+
   },
 
-  shouldUseXPath: function() {
-    if (!Prototype.BrowserFeatures.XPath) return false;
+  shouldUseXPath: (function() {
 
-    var e = this.expression;
+    var IS_DESCENDANT_SELECTOR_BUGGY = (function(){
+      var isBuggy = false;
+      if (document.evaluate && window.XPathResult) {
+        var el = document.createElement('div');
+        el.innerHTML = '<ul><li></li></ul><div><ul><li></li></ul></div>';
 
-    // Safari 3 chokes on :*-of-type and :empty
-    if (Prototype.Browser.WebKit &&
-     (e.include("-of-type") || e.include(":empty")))
-      return false;
+        var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
+          "//*[local-name()='li' or local-name()='LI']";
+
+        var result = document.evaluate(xpath, el, null,
+          XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
+
+        isBuggy = (result.snapshotLength !== 2);
+        el = null;
+      }
+      return isBuggy;
+    })();
+
+    return function() {
+      if (!Prototype.BrowserFeatures.XPath) return false;
+
+      var e = this.expression;
+
+      if (Prototype.Browser.WebKit &&
+       (e.include("-of-type") || e.include(":empty")))
+        return false;
+
+      if ((/(\[[\w-]*?:|:checked)/).test(e))
+        return false;
+
+      if (IS_DESCENDANT_SELECTOR_BUGGY) return false;
 
-    // XPath can't do namespaced attributes, nor can it read
-    // the "checked" property from DOM nodes
-    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
+      return true;
+    }
+
+  })(),
+
+  shouldUseSelectorsAPI: function() {
+    if (!Prototype.BrowserFeatures.SelectorsAPI) return false;
+
+    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;
+
+    if (!Selector._div) Selector._div = new Element('div');
+
+    try {
+      Selector._div.querySelector(this.expression);
+    } catch(e) {
       return false;
+    }
 
     return true;
   },
 
   compileMatcher: function() {
-    if (this.shouldUseXPath())
-      return this.compileXPathMatcher();
-
     var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
-        c = Selector.criteria, le, p, m;
+        c = Selector.criteria, le, p, m, len = ps.length, name;
 
     if (Selector._cache[e]) {
       this.matcher = Selector._cache[e];
@@ -2703,11 +3281,12 @@
 
     while (e && le != e && (/\S/).test(e)) {
       le = e;
-      for (var i in ps) {
-        p = ps[i];
+      for (var i = 0; i<len; i++) {
+        p = ps[i].re;
+        name = ps[i].name;
         if (m = e.match(p)) {
-          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
-    	      new Template(c[i]).evaluate(m));
+          this.matcher.push(Object.isFunction(c[name]) ? c[name](m) :
+            new Template(c[name]).evaluate(m));
           e = e.replace(m[0], '');
           break;
         }
@@ -2721,7 +3300,7 @@
 
   compileXPathMatcher: function() {
     var e = this.expression, ps = Selector.patterns,
-        x = Selector.xpath, le, m;
+        x = Selector.xpath, le, m, len = ps.length, name;
 
     if (Selector._cache[e]) {
       this.xpath = Selector._cache[e]; return;
@@ -2730,10 +3309,11 @@
     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));
+      for (var i = 0; i<len; i++) {
+        name = ps[i].name;
+        if (m = e.match(ps[i].re)) {
+          this.matcher.push(Object.isFunction(x[name]) ? x[name](m) :
+            new Template(x[name]).evaluate(m));
           e = e.replace(m[0], '');
           break;
         }
@@ -2746,29 +3326,43 @@
 
   findElements: function(root) {
     root = root || document;
-    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
-    return this.matcher(root);
+    var e = this.expression, results;
+
+    switch (this.mode) {
+      case 'selectorsAPI':
+        if (root !== document) {
+          var oldId = root.id, id = $(root).identify();
+          id = id.replace(/[\.:]/g, "\\$0");
+          e = "#" + id + " " + e;
+        }
+
+        results = $A(root.querySelectorAll(e)).map(Element.extend);
+        root.id = oldId;
+
+        return results;
+      case 'xpath':
+        return document._getElementsByXPath(this.xpath, root);
+      default:
+       return this.matcher(root);
+    }
   },
 
   match: function(element) {
     this.tokens = [];
 
     var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
-    var le, p, m;
+    var le, p, m, len = ps.length, name;
 
     while (e && le !== e && (/\S/).test(e)) {
       le = e;
-      for (var i in ps) {
-        p = ps[i];
+      for (var i = 0; i<len; i++) {
+        p = ps[i].re;
+        name = ps[i].name;
         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)]);
+          if (as[name]) {
+            this.tokens.push([name, 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);
           }
         }
@@ -2795,6 +3389,21 @@
   }
 });
 
+if (Prototype.BrowserFeatures.SelectorsAPI &&
+ document.compatMode === 'BackCompat') {
+  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
+    var div = document.createElement('div'),
+     span = document.createElement('span');
+
+    div.id = "prototype_test_id";
+    span.className = 'Test';
+    div.appendChild(span);
+    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
+    div = span = null;
+    return isIgnored;
+  })();
+}
+
 Object.extend(Selector, {
   _cache: { },
 
@@ -2838,20 +3447,21 @@
       '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', '') = '')]",
+      'empty':       "[count(*) = 0 and (count(text()) = 0)]",
       'checked':     "[@checked]",
-      'disabled':    "[@disabled]",
-      'enabled':     "[not(@disabled)]",
+      'disabled':    "[(@disabled) and (@type!='hidden')]",
+      'enabled':     "[not(@disabled) and (@type!='hidden')]",
       'not': function(m) {
         var e = m[6], p = Selector.patterns,
-            x = Selector.xpath, le, v;
+            x = Selector.xpath, le, v, len = p.length, name;
 
         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);
+          for (var i = 0; i<len; i++) {
+            name = p[i].name
+            if (m = e.match(p[i].re)) {
+              v = Object.isFunction(x[name]) ? x[name](m) : new Template(x[name]).evaluate(m);
               exclusion.push("(" + v.substring(1, v.length - 1) + ")");
               e = e.replace(m[0], '');
               break;
@@ -2901,13 +3511,13 @@
   },
 
   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;',

[... 1138 lines stripped ...]


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