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2//# sourceMappingURL=jquery-1.12.1.min.map
3
4var $j = jQuery.noConflict();
5/*  Prototype JavaScript framework, version 1.7
6 *  (c) 2005-2010 Sam Stephenson
7 *
8 *  Prototype is freely distributable under the terms of an MIT-style license.
9 *  For details, see the Prototype web site: http://www.prototypejs.org/
10 *
11 *--------------------------------------------------------------------------*/
12if ('NodeList' in window) {
13  if (!NodeList.prototype.each && NodeList.prototype.forEach) {
14    NodeList.prototype.each = NodeList.prototype.forEach;
15  }
16}
17var Prototype = {
18
19  Version: '1.7',
20
21  Browser: (function(){
22    var ua = navigator.userAgent;
23    var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
24    return {
25      IE:             !!window.attachEvent && !isOpera,
26      Opera:          isOpera,
27      WebKit:         ua.indexOf('AppleWebKit/') > -1,
28      Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
29      MobileSafari:   /Apple.*Mobile/.test(ua)
30    }
31  })(),
32
33  BrowserFeatures: {
34    XPath: !!document.evaluate,
35
36    SelectorsAPI: !!document.querySelector,
37
38    ElementExtensions: (function() {
39      var constructor = window.Element || window.HTMLElement;
40      return !!(constructor && constructor.prototype);
41    })(),
42    SpecificElementExtensions: (function() {
43      if (typeof window.HTMLDivElement !== 'undefined')
44        return true;
45
46      var div = document.createElement('div'),
47          form = document.createElement('form'),
48          isSupported = false;

49
50      if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
51        isSupported = true;
52      }
53
54      div = form = null;
55
56      return isSupported;
57    })()
58  },
59
60  ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
61  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
62
63  emptyFunction: function() { },
64
65  K: function(x) { return x }
66};
67
68if (Prototype.Browser.MobileSafari)
69  Prototype.BrowserFeatures.SpecificElementExtensions = false;
70
71
72var Abstract = { };
73
74
75var Try = {
76  these: function() {
77    var returnValue;
78
79    for (var i = 0, length = arguments.length; i < length; i++) {
80      var lambda = arguments[i];
81      try {
82        returnValue = lambda();
83        break;
84      } catch (e) { }
85    }
86
87    return returnValue;
88  }
89};
90
91/* Based on Alex Arnell's inheritance implementation. */
92
93var Class = (function() {
94
95  var IS_DONTENUM_BUGGY = (function(){
96    for (var p in { toString: 1 }) {
97      if (p === 'toString') return false;
98    }
99    return true;
100  })();
101
102  function subclass() {};
103  function create() {
104    var parent = null, properties = $A(arguments);
105    if (Object.isFunction(properties[0]))
106      parent = properties.shift();
107
108    function klass() {
109      this.initialize.apply(this, arguments);
110    }
111
112    Object.extend(klass, Class.Methods);
113    klass.superclass = parent;
114    klass.subclasses = [];
115
116    if (parent) {
117      subclass.prototype = parent.prototype;
118      klass.prototype = new subclass;
119      parent.subclasses.push(klass);
120    }
121
122    for (var i = 0, length = properties.length; i < length; i++)
123      klass.addMethods(properties[i]);
124
125    if (!klass.prototype.initialize)
126      klass.prototype.initialize = Prototype.emptyFunction;
127
128    klass.prototype.constructor = klass;
129    return klass;
130  }
131
132  function addMethods(source) {
133    var ancestor   = this.superclass && this.superclass.prototype,
134        properties = Object.keys(source);
135
136    if (IS_DONTENUM_BUGGY) {
137      if (source.toString != Object.prototype.toString)
138        properties.push("toString");
139      if (source.valueOf != Object.prototype.valueOf)
140        properties.push("valueOf");
141    }
142
143    for (var i = 0, length = properties.length; i < length; i++) {
144      var property = properties[i], value = source[property];
145      if (ancestor && Object.isFunction(value) &&
146          value.argumentNames()[0] == "$super") {
147        var method = value;
148        value = (function(m) {
149          return function() { return ancestor[m].apply(this, arguments); };
150        })(property).wrap(method);
151
152        value.valueOf = method.valueOf.bind(method);
153        value.toString = method.toString.bind(method);
154      }
155      this.prototype[property] = value;
156    }
157
158    return this;
159  }
160
161  return {
162    create: create,
163    Methods: {
164      addMethods: addMethods
165    }
166  };
167})();
168(function() {
169
170  var _toString = Object.prototype.toString,
171      NULL_TYPE = 'Null',
172      UNDEFINED_TYPE = 'Undefined',
173      BOOLEAN_TYPE = 'Boolean',
174      NUMBER_TYPE = 'Number',
175      STRING_TYPE = 'String',
176      OBJECT_TYPE = 'Object',
177      FUNCTION_CLASS = '[object Function]',
178      BOOLEAN_CLASS = '[object Boolean]',
179      NUMBER_CLASS = '[object Number]',
180      STRING_CLASS = '[object String]',
181      ARRAY_CLASS = '[object Array]',
182      DATE_CLASS = '[object Date]',
183      NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON &&
184        typeof JSON.stringify === 'function' &&
185        JSON.stringify(0) === '0' &&
186        typeof JSON.stringify(Prototype.K) === 'undefined';
187
188  function Type(o) {
189    switch(o) {
190      case null: return NULL_TYPE;
191      case (void 0): return UNDEFINED_TYPE;
192    }
193    var type = typeof o;
194    switch(type) {
195      case 'boolean': return BOOLEAN_TYPE;
196      case 'number':  return NUMBER_TYPE;
197      case 'string':  return STRING_TYPE;
198    }
199    return OBJECT_TYPE;
200  }
201
202  function extend(destination, source) {
203    for (var property in source)
204      destination[property] = source[property];
205    return destination;
206  }
207
208  function inspect(object) {
209    try {
210      if (isUndefined(object)) return 'undefined';
211      if (object === null) return 'null';
212      return object.inspect ? object.inspect() : String(object);
213    } catch (e) {
214      if (e instanceof RangeError) return '...';
215      throw e;
216    }
217  }
218
219  function toJSON(value) {
220    return Str('', { '': value }, []);
221  }
222
223  function Str(key, holder, stack) {
224    var value = holder[key],
225        type = typeof value;
226
227    if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') {
228      value = value.toJSON(key);
229    }
230
231    var _class = _toString.call(value);
232
233    switch (_class) {
234      case NUMBER_CLASS:
235      case BOOLEAN_CLASS:
236      case STRING_CLASS:
237        value = value.valueOf();
238    }
239
240    switch (value) {
241      case null: return 'null';

242      case true: return 'true';
243      case false: return 'false';
244    }
245
246    type = typeof value;
247    switch (type) {
248      case 'string':
249        return value.inspect(true);
250      case 'number':
251        return isFinite(value) ? String(value) : 'null';
252      case 'object':
253
254        for (var i = 0, length = stack.length; i < length; i++) {
255          if (stack[i] === value) { throw new TypeError(); }
256        }
257        stack.push(value);
258
259        var partial = [];
260        if (_class === ARRAY_CLASS) {
261          for (var i = 0, length = value.length; i < length; i++) {
262            var str = Str(i, value, stack);
263            partial.push(typeof str === 'undefined' ? 'null' : str);
264          }
265          partial = '[' + partial.join(',') + ']';
266        } else {
267          var keys = Object.keys(value);
268          for (var i = 0, length = keys.length; i < length; i++) {
269            var key = keys[i], str = Str(key, value, stack);
270            if (typeof str !== "undefined") {
271               partial.push(key.inspect(true)+ ':' + str);
272             }
273          }
274          partial = '{' + partial.join(',') + '}';
275        }
276        stack.pop();
277        return partial;
278    }
279  }
280
281  function stringify(object) {
282    return JSON.stringify(object);
283  }
284
285  function toQueryString(object) {
286    return $H(object).toQueryString();
287  }
288
289  function toHTML(object) {
290    return object && object.toHTML ? object.toHTML() : String.interpret(object);
291  }
292
293  function keys(object) {
294    if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); }
295    var results = [];
296    for (var property in object) {
297      if (object.hasOwnProperty(property)) {
298        results.push(property);
299      }
300    }
301    return results;
302  }
303
304  function values(object) {
305    var results = [];
306    for (var property in object)
307      results.push(object[property]);
308    return results;
309  }
310
311  function clone(object) {
312    return extend({ }, object);
313  }
314
315  function isElement(object) {
316    return !!(object && object.nodeType == 1);
317  }
318
319  function isArray(object) {
320    return _toString.call(object) === ARRAY_CLASS;
321  }
322
323  var hasNativeIsArray = (typeof Array.isArray == 'function')
324    && Array.isArray([]) && !Array.isArray({});
325
326  if (hasNativeIsArray) {
327    isArray = Array.isArray;
328  }
329
330  function isHash(object) {
331    return object instanceof Hash;
332  }
333
334  function isFunction(object) {
335    return _toString.call(object) === FUNCTION_CLASS;
336  }
337
338  function isString(object) {
339    return _toString.call(object) === STRING_CLASS;
340  }
341
342  function isNumber(object) {
343    return _toString.call(object) === NUMBER_CLASS;
344  }
345
346  function isDate(object) {
347    return _toString.call(object) === DATE_CLASS;
348  }
349
350  function isUndefined(object) {
351    return typeof object === "undefined";
352  }
353
354  extend(Object, {
355    extend:        extend,
356    inspect:       inspect,
357    toJSON:        NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
358    toQueryString: toQueryString,
359    toHTML:        toHTML,
360    keys:          Object.keys || keys,
361    values:        values,
362    clone:         clone,
363    isElement:     isElement,
364    isArray:       isArray,
365    isHash:        isHash,
366    isFunction:    isFunction,
367    isString:      isString,
368    isNumber:      isNumber,
369    isDate:        isDate,
370    isUndefined:   isUndefined
371  });
372})();
373Object.extend(Function.prototype, (function() {
374  var slice = Array.prototype.slice;
375
376  function update(array, args) {
377    var arrayLength = array.length, length = args.length;
378    while (length--) array[arrayLength + length] = args[length];
379    return array;
380  }
381
382  function merge(array, args) {
383    array = slice.call(array, 0);
384    return update(array, args);
385  }
386
387  function argumentNames() {
388    var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
389      .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
390      .replace(/\s+/g, '').split(',');
391    return names.length == 1 && !names[0] ? [] : names;
392  }
393
394  function bind(context) {
395    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
396    var __method = this, args = slice.call(arguments, 1);
397    return function() {
398      var a = merge(args, arguments);
399      return __method.apply(context, a);
400    }
401  }
402
403  function bindAsEventListener(context) {
404    var __method = this, args = slice.call(arguments, 1);
405    return function(event) {
406      var a = update([event || window.event], args);
407      return __method.apply(context, a);
408    }
409  }
410
411  function curry() {
412    if (!arguments.length) return this;
413    var __method = this, args = slice.call(arguments, 0);
414    return function() {
415      var a = merge(args, arguments);
416      return __method.apply(this, a);
417    }
418  }
419
420  function delay(timeout) {
421    var __method = this, args = slice.call(arguments, 1);
422    timeout = timeout * 1000;
423    return window.setTimeout(function() {
424      return __method.apply(__method, args);
425    }, timeout);
426  }
427
428  function defer() {
429    var args = update([0.01], arguments);
430    return this.delay.apply(this, args);
431  }
432
433  function wrap(wrapper) {
434    var __method = this;
435    return function() {
436      var a = update([__method.bind(this)], arguments);
437      return wrapper.apply(this, a);
438    }
439  }
440
441  function methodize() {
442    if (this._methodized) return this._methodized;
443    var __method = this;
444    return this._methodized = function() {
445      var a = update([this], arguments);
446      return __method.apply(null, a);
447    };
448  }
449
450  return {
451    argumentNames:       argumentNames,
452    bind:                bind,
453    bindAsEventListener: bindAsEventListener,
454    curry:               curry,
455    delay:               delay,
456    defer:               defer,
457    wrap:                wrap,
458    methodize:           methodize
459  }
460})());
461
462
463
464(function(proto) {
465
466
467  function toISOString() {
468    return this.getUTCFullYear() + '-' +
469      (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
470      this.getUTCDate().toPaddedString(2) + 'T' +
471      this.getUTCHours().toPaddedString(2) + ':' +
472      this.getUTCMinutes().toPaddedString(2) + ':' +
473      this.getUTCSeconds().toPaddedString(2) + 'Z';
474  }
475
476
477  function toJSON() {
478    return this.toISOString();
479  }
480
481  if (!proto.toISOString) proto.toISOString = toISOString;
482  if (!proto.toJSON) proto.toJSON = toJSON;
483
484})(Date.prototype);
485
486
487RegExp.prototype.match = RegExp.prototype.test;
488
489RegExp.escape = function(str) {
490  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
491};
492var PeriodicalExecuter = Class.create({
493  initialize: function(callback, frequency) {
494    this.callback = callback;
495    this.frequency = frequency;
496    this.currentlyExecuting = false;

497
498    this.registerCallback();
499  },
500
501  registerCallback: function() {
502    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
503  },
504
505  execute: function() {
506    this.callback(this);
507  },
508
509  stop: function() {
510    if (!this.timer) return;
511    clearInterval(this.timer);
512    this.timer = null;
513  },
514
515  onTimerEvent: function() {
516    if (!this.currentlyExecuting) {
517      try {
518        this.currentlyExecuting = true;
519        this.execute();
520        this.currentlyExecuting = false;
521      } catch(e) {
522        this.currentlyExecuting = false;
523        throw e;
524      }
525    }
526  }
527});
528Object.extend(String, {
529  interpret: function(value) {
530    return value == null ? '' : String(value);
531  },
532  specialChar: {
533    '\b': '\\b',
534    '\t': '\\t',
535    '\n': '\\n',
536    '\f': '\\f',
537    '\r': '\\r',
538    '\\': '\\\\'
539  }
540});
541
542Object.extend(String.prototype, (function() {
543  var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
544    typeof JSON.parse === 'function' &&
545    JSON.parse('{"test": true}').test;
546
547  function prepareReplacement(replacement) {
548    if (Object.isFunction(replacement)) return replacement;
549    var template = new Template(replacement);
550    return function(match) { return template.evaluate(match) };
551  }
552
553  function gsub(pattern, replacement) {
554    var result = '', source = this, match;
555    replacement = prepareReplacement(replacement);
556
557    if (Object.isString(pattern))
558      pattern = RegExp.escape(pattern);
559
560    if (!(pattern.length || pattern.source)) {
561      replacement = replacement('');
562      return replacement + source.split('').join(replacement) + replacement;
563    }
564
565    while (source.length > 0) {
566      if (match = source.match(pattern)) {
567        result += source.slice(0, match.index);
568        result += String.interpret(replacement(match));
569        source  = source.slice(match.index + match[0].length);
570      } else {
571        result += source, source = '';
572      }
573    }
574    return result;
575  }
576
577  function sub(pattern, replacement, count) {
578    replacement = prepareReplacement(replacement);
579    count = Object.isUndefined(count) ? 1 : count;
580
581    return this.gsub(pattern, function(match) {
582      if (--count < 0) return match[0];
583      return replacement(match);
584    });
585  }
586
587  function scan(pattern, iterator) {
588    this.gsub(pattern, iterator);
589    return String(this);
590  }
591
592  function truncate(length, truncation) {
593    length = length || 30;
594    truncation = Object.isUndefined(truncation) ? '...' : truncation;
595    return this.length > length ?
596      this.slice(0, length - truncation.length) + truncation : String(this);
597  }
598
599  function strip() {
600    return this.replace(/^\s+/, '').replace(/\s+$/, '');
601  }
602
603  function stripTags() {
604    return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
605  }
606
607  function stripScripts() {
608    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
609  }
610
611  function extractScripts() {
612    var matchAll = new RegExp(Prototype.ScriptFragment, 'img'),
613        matchOne = new RegExp(Prototype.ScriptFragment, 'im');
614    return (this.match(matchAll) || []).map(function(scriptTag) {
615      return (scriptTag.match(matchOne) || ['', ''])[1];
616    });
617  }
618
619  function evalScripts() {
620    return this.extractScripts().map(function(script) { return eval(script) });
621  }
622
623  function escapeHTML() {
624    return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
625  }
626
627  function unescapeHTML() {
628    return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
629  }
630
631
632  function toQueryParams(separator) {
633    var match = this.strip().match(/([^?#]*)(#.*)?$/);
634    if (!match) return { };
635
636    return match[1].split(separator || '&').inject({ }, function(hash, pair) {
637      if ((pair = pair.split('='))[0]) {
638        var key = decodeURIComponent(pair.shift()),
639            value = pair.length > 1 ? pair.join('=') : pair[0];
640
641        if (value != undefined) value = decodeURIComponent(value);
642
643        if (key in hash) {
644          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
645          hash[key].push(value);
646        }
647        else hash[key] = value;
648      }
649      return hash;
650    });
651  }
652
653  function toArray() {
654    return this.split('');
655  }
656
657  function succ() {
658    return this.slice(0, this.length - 1) +
659      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
660  }
661
662  function times(count) {
663    return count < 1 ? '' : new Array(count + 1).join(this);
664  }
665
666  function camelize() {
667    return this.replace(/-+(.)?/g, function(match, chr) {
668      return chr ? chr.toUpperCase() : '';
669    });
670  }
671
672  function capitalize() {
673    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
674  }
675
676  function underscore() {
677    return this.replace(/::/g, '/')
678               .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
679               .replace(/([a-z\d])([A-Z])/g, '$1_$2')
680               .replace(/-/g, '_')
681               .toLowerCase();
682  }
683
684  function dasherize() {
685    return this.replace(/_/g, '-');
686  }
687
688  function inspect(useDoubleQuotes) {
689    var escapedString = this.replace(/[\x00-\x1f\\]/g, function(ch

689aracter) {
690      if (character in String.specialChar) {
691        return String.specialChar[character];
692      }
693      return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
694    });
695    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
696    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
697  }
698
699  function unfilterJSON(filter) {
700    return this.replace(filter || Prototype.JSONFilter, '$1');
701  }
702
703  function isJSON() {
704    var str = this;
705    if (str.blank()) return false;
706    str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
707    str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
708    str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
709    return (/^[\],:{}\s]*$/).test(str);
710  }
711
712  function evalJSON(sanitize) {
713    var json = this.unfilterJSON(),
714        cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
715    if (cx.test(json)) {
716      json = json.replace(cx, function (a) {
717        return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
718      });
719    }
720    try {
721      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
722    } catch (e) { }
723    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
724  }
725
726  function parseJSON() {
727    var json = this.unfilterJSON();
728    return JSON.parse(json);
729  }
730
731  function include(pattern) {
732    return this.indexOf(pattern) > -1;
733  }
734
735  function startsWith(pattern) {
736    return this.lastIndexOf(pattern, 0) === 0;
737  }
738
739  function endsWith(pattern) {
740    var d = this.length - pattern.length;
741    return d >= 0 && this.indexOf(pattern, d) === d;
742  }
743
744  function empty() {
745    return this == '';
746  }
747
748  function blank() {
749    return /^\s*$/.test(this);
750  }
751
752  function interpolate(object, pattern) {
753    return new Template(this, pattern).evaluate(object);
754  }
755
756  return {
757    gsub:           gsub,
758    sub:            sub,
759    scan:           scan,
760    truncate:       truncate,
761    strip:          String.prototype.trim || strip,
762    stripTags:      stripTags,
763    stripScripts:   stripScripts,
764    extractScripts: extractScripts,
765    evalScripts:    evalScripts,
766    escapeHTML:     escapeHTML,
767    unescapeHTML:   unescapeHTML,
768    toQueryParams:  toQueryParams,
769    parseQuery:     toQueryParams,
770    toArray:        toArray,
771    succ:           succ,
772    times:          times,
773    camelize:       camelize,
774    capitalize:     capitalize,
775    underscore:     underscore,
776    dasherize:      dasherize,
777    inspect:        inspect,
778    unfilterJSON:   unfilterJSON,
779    isJSON:         isJSON,
780    evalJSON:       NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
781    include:        include,
782    startsWith:     startsWith,
783    endsWith:       endsWith,
784    empty:          empty,
785    blank:          blank,
786    interpolate:    interpolate
787  };
788})());
789
790var Template = Class.create({
791  initialize: function(template, pattern) {
792    this.template = template.toString();
793    this.pattern = pattern || Template.Pattern;
794  },
795
796  evaluate: function(object) {
797    if (object && Object.isFunction(object.toTemplateReplacements))
798      object = object.toTemplateReplacements();
799
800    return this.template.gsub(this.pattern, function(match) {
801      if (object == null) return (match[1] + '');
802
803      var before = match[1] || '';
804      if (before == '\\') return match[2];
805
806      var ctx = object, expr = match[3],
807          pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
808
809      match = pattern.exec(expr);
810      if (match == null) return before;
811
812      while (match != null) {
813        var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
814        ctx = ctx[comp];
815        if (null == ctx || '' == match[3]) break;
816        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
817        match = pattern.exec(expr);
818      }
819
820      return before + String.interpret(ctx);
821    });
822  }
823});
824Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
825
826var $break = { };
827
828var Enumerable = (function() {
829  function each(iterator, context) {
830    var index = 0;
831    try {
832      this._each(function(value) {
833        iterator.call(context, value, index++);
834      });
835    } catch (e) {
836      if (e != $break) throw e;
837    }
838    return this;
839  }
840
841  function eachSlice(number, iterator, context) {

842    var index = -number, slices = [], array = this.toArray();
843    if (number < 1) return array;
844    while ((index += number) < array.length)
845      slices.push(array.slice(index, index+number));
846    return slices.collect(iterator, context);
847  }
848
849  function all(iterator, context) {
850    iterator = iterator || Prototype.K;
851    var result = true;
852    this.each(function(value, index) {
853      result = result && !!iterator.call(context, value, index);
854      if (!result) throw $break;
855    });
856    return result;
857  }
858
859  function any(iterator, context) {
860    iterator = iterator || Prototype.K;
861    var result = false;
862    this.each(function(value, index) {
863      if (result = !!iterator.call(context, value, index))
864        throw $break;
865    });
866    return result;
867  }
868
869  function collect(iterator, context) {
870    iterator = iterator || Prototype.K;
871    var results = [];
872    this.each(function(value, index) {
873      results.push(iterator.call(context, value, index));
874    });
875    return results;
876  }
877
878  function detect(iterator, context) {
879    var result;
880    this.each(function(value, index) {
881      if (iterator.call(context, value, index)) {
882        result = value;
883        throw $break;
884      }
885    });
886    return result;
887  }
888
889  function findAll(iterator, context) {
890    var results = [];
891    this.each(function(value, index) {
892      if (iterator.call(context, value, index))
893        results.push(value);
894    });
895    return results;
896  }
897
898  function grep(filter, iterator, context) {
899    iterator = iterator || Prototype.K;
900    var results = [];
901
902    if (Object.isString(filter))
903      filter = new RegExp(RegExp.escape(filter));
904
905    this.each(function(value, index) {
906      if (filter.match(value))
907        results.push(iterator.call(context, value, index));
908    });
909    return results;
910  }
911
912  function include(object) {
913    if (Object.isFunction(this.indexOf))
914      if (this.indexOf(object) != -1) return true;
915
916    var found = false;
917    this.each(function(value) {
918      if (value == object) {
919        found = true;
920        throw $break;
921      }
922    });
923    return found;
924  }
925
926  function inGroupsOf(number, fillWith) {
927    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
928    return this.eachSlice(number, function(slice) {
929      while(slice.length < number) slice.push(fillWith);
930      return slice;
931    });
932  }
933
934  function inject(memo, iterator, context) {
935    this.each(function(value, index) {
936      memo = iterator.call(context, memo, value, index);
937    });
938    return memo;
939  }
940
941  function invoke(method) {
942    var args = $A(arguments).slice(1);
943    return this.map(function(value) {
944      return value[method].apply(value, args);
945    });
946  }
947
948  function max(iterator, context) {
949    iterator = iterator || Prototype.K;
950    var result;
951    this.each(function(value, index) {
952      value = iterator.call(context, value, index);
953      if (result == null || value >= result)
954        result = value;
955    });
956    return result;
957  }
958
959  function min(iterator, context) {
960    iterator = iterator || Prototype.K;
961    var result;
962    this.each(function(value, index) {
963      value = iterator.call(context, value, index);
964      if (result == null || value < result)
965        result = value;
966    });
967    return result;
968  }
969
970  function partition(iterator, context) {
971    iterator = iterator || Prototype.K;
972    var trues = [], falses = [];
973    this.each(function(value, index) {
974      (iterator.call(context, value, index) ?
975        trues : falses).push(value);
976    });
977    return [trues, falses];
978  }
979
980  function pluck(property) {
981    var results = [];
982    this.each(function(value) {
983      results.push(value[property]);
984    });
985    return results;
986  }
987
988  function reject(iterator, context) {
989    var results = [];
990    this.each(function(value, index) {
991      if (!iterator.call(context, value, index))
992        results.push(value);
993    });
994    return results;
995  }
996
997  function sortBy(iterator, context) {
998    return this.map(function(value, index) {
999      return {
1000        value: value,
1001        criteria: iterator.call(context, value, index)
1002      };
1003    }).sort(function(left, right) {
1004      var a = left.criteria, b = right.criteria;
1005      return a < b ? -1 : a > b ? 1 : 0;
1006    }).pluck('value');
1007  }
1008
1009  function toArray() {
1010    return this.map();
1011  }
1012
1013  function zip() {
1014    var iterator = Prototype.K, args = $A(arguments);
1015    if (Object.isFunction(args.last()))
1016      iterator = args.pop();
1017
1018    var collections = [this].concat(args).map($A);
1019    return this.map(function(value, index) {
1020      return iterator(collections.pluck(index));
1021    });
1022  }
1023
1024  function size() {
1025    return this.toArray().length;
1026  }
1027
1028  function inspect() {
1029    return '#<Enumerable:' + this.toArray().inspect() + '>';
1030  }
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040  return {
1041    each:       each,
1042    eachSlice:  eachSlice,
1043    all:        all,
1044    every:      all,
1045    any:        any,
1046    some:       any,
1047    collect:    collect,
1048    map:        collect,
1049    detect:     detect,
1050    findAll:    findAll,
1051    select:     findAll,
1052    filter:     findAll,
1053    grep:       grep,
1054    include:    include,
1055    member:     include,
1056    inGroupsOf: inGroupsOf,
1057    inject:     inject,
1058    invoke:     invoke,
1059    max:        max,
1060    min:        min,
1061    partition:  partition,
1062    pluck:      pluck,
1063    reject:     reject,
1064    sortBy:     sortBy,
1065    toArray:    toArray,
1066    entries:    toArray,
1067    zip:        zip,
1068    size:       size,
1069    inspect:    inspect,
1070    find:       detect

1071  };
1072})();
1073
1074function $A(iterable) {
1075  if (!iterable) return [];
1076  if ('toArray' in Object(iterable)) return iterable.toArray();
1077  var length = iterable.length || 0, results = new Array(length);
1078  while (length--) results[length] = iterable[length];
1079  return results;
1080}
1081
1082
1083function $w(string) {
1084  if (!Object.isString(string)) return [];
1085  string = string.strip();
1086  return string ? string.split(/\s+/) : [];
1087}
1088
1089Array.from = $A;
1090
1091
1092(function() {
1093  var arrayProto = Array.prototype,
1094      slice = arrayProto.slice,
1095      _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available
1096
1097  function each(iterator, context) {
1098    for (var i = 0, length = this.length >>> 0; i < length; i++) {
1099      if (i in this) iterator.call(context, this[i], i, this);
1100    }
1101  }
1102  if (!_each) _each = each;
1103
1104  function clear() {
1105    this.length = 0;
1106    return this;
1107  }
1108
1109  function first() {
1110    return this[0];
1111  }
1112
1113  function last() {
1114    return this[this.length - 1];
1115  }
1116
1117  function compact() {
1118    return this.select(function(value) {
1119      return value != null;
1120    });
1121  }
1122
1123  function flatten() {
1124    return this.inject([], function(array, value) {
1125      if (Object.isArray(value))
1126        return array.concat(value.flatten());
1127      array.push(value);
1128      return array;
1129    });
1130  }
1131
1132  function without() {
1133    var values = slice.call(arguments, 0);
1134    return this.select(function(value) {
1135      return !values.include(value);
1136    });
1137  }
1138
1139  function reverse(inline) {
1140    return (inline === false ? this.toArray() : this)._reverse();
1141  }
1142
1143  function uniq(sorted) {
1144    return this.inject([], function(array, value, index) {
1145      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
1146        array.push(value);
1147      return array;
1148    });
1149  }
1150
1151  function intersect(array) {
1152    return this.uniq().findAll(function(item) {
1153      return array.detect(function(value) { return item === value });
1154    });
1155  }
1156
1157
1158  function clone() {
1159    return slice.call(this, 0);
1160  }
1161
1162  function size() {
1163    return this.length;
1164  }
1165
1166  function inspect() {
1167    return '[' + this.map(Object.inspect).join(', ') + ']';
1168  }
1169
1170  function indexOf(item, i) {
1171    i || (i = 0);
1172    var length = this.length;
1173    if (i < 0) i = length + i;
1174    for (; i < length; i++)
1175      if (this[i] === item) return i;
1176    return -1;
1177  }
1178
1179  function lastIndexOf(item, i) {
1180    i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
1181    var n = this.slice(0, i).reverse().indexOf(item);
1182    return (n < 0) ? n : i - n - 1;
1183  }
1184
1185  function concat() {
1186    var array = slice.call(this, 0), item;
1187    for (var i = 0, length = arguments.length; i < length; i++) {
1188      item = arguments[i];
1189      if (Object.isArray(item) && !('callee' in item)) {
1190        for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
1191          array.push(item[j]);
1192      } else {
1193        array.push(item);
1194      }
1195    }
1196    return array;
1197  }
1198
1199  Object.extend(arrayProto, Enumerable);
1200
1201  if (!arrayProto._reverse)
1202    arrayProto._reverse = arrayProto.reverse;
1203
1204  Object.extend(arrayProto, {
1205    _each:     _each,
1206    clear:     clear,
1207    first:     first,
1208    last:      last,
1209    compact:   compact,
1210    flatten:   flatten,
1211    without:   without,
1212    reverse:   reverse,
1213    uniq:      uniq,
1214    intersect: intersect,
1215    clone:     clone,
1216    toArray:   clone,
1217    size:      size,
1218    inspect:   inspect
1219  });
1220
1221  var CONCAT_ARGUMENTS_BUGGY = (function() {
1222    return [].concat(arguments)[0][0] !== 1;
1223  })(1,2)
1224
1225  if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;
1226
1227  if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
1228  if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
1229})();
1230function $H(object) {
1231  return new Hash(object);
1232};
1233
1234var Hash = Class.create(Enumerable, (function() {
1235  function initialize(object) {
1236    this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
1237  }
1238
1239
1240  function _each(iterator) {
1241    for (var key in this._object) {
1242      var value = this._object[key], pair = [key, value];
1243      pair.key = key;
1244      pair.value = value;
1245      iterator(pair);
1246    }
1247  }
1248
1249  function set(key, value) {
1250    return this._object[key] = value;
1251  }
1252
1253  function get(key) {
1254    if (this._object[key] !== Object.prototype[key])
1255      return this._object[key];
1256  }
1257
1258  function unset(key) {
1259    var value = this._object[key];
1260    delete this._object[key];
1261    return value;
1262  }
1263
1264  function toObject() {
1265    return Object.clone(this._object);
1266  }
1267
1268
1269
1270  function keys() {
1271    return this.pluck('key');
1272  }
1273
1274  function values() {
1275    return this.pluck('value');
1276  }
1277
1278  function index(value) {
1279    var match = this.detect(function(pair) {
1280      return pair.value === value;
1281    });
1282    return match && match.key;
1283  }
1284
1285  function merge(object) {
1286    return this.clone().update(object);
1287  }
1288
1289  function update(object) {
1290    return new Hash(object).inject(this, function(result, pair) {
1291      result.set(pair.key, pair.value);
1292      return result;
1293    });
1294  }
1295
1296  function toQueryPair(key, value) {
1297    if (Object.isUndefined(value)) return key;
1298    return key + '=' + encodeURIComponent(String.interpret(value));
1299  }
1300
1301  function toQueryString() {
1302    return this.inject([], function(results, pair) {
1303      var key = encodeURIComponent(pair.key), values = pair.value;
1304
1305      if (values && typeof values == 'object') {
1306        if (Object.isArray(values)) {
1307          var queryValues = [];
1308          for (var i = 0, len = values.length, value; i < len; i++) {
1309            value = values[i];
1310            queryValues.push(toQueryPair(key, value));
1311          }
1312          return results.concat(queryValues);
1313        }
1314      } else results.push(toQueryPair(key, values));
1315      return results;
1316    }).join('&');
1317  }
1318
1319  function inspect() {
1320    return '#<Hash:{' + this.map(function(pair) {
1321      return pair.map(Object.inspect).join(': ');
1322    }).join(', ') + '}>';
1323  }
1324
1325  function clone() {
1326    return new Hash(this);
1327  }
1328
1329  return {
1330    initialize:             initialize,
1331    _each:                  _each,
1332    set:                    set,
1333    get:                    get,
1334    unset:                  unset,
1335    toObject:               toObject,
1336    toTemplateReplacements: toObject,
1337    keys:                   keys,
1338    values:                 values,
1339    index:                  index,
1340    merge:                  merge,
1341    update:                 update,
1342    toQueryString:          toQueryString,
1343    inspect:                inspect,
1344    toJSON:                 toObject,
1345    clone:                  clone
1346  };
1347})());
1348
1349Hash.from = $H;
1350Object.extend(Number.prototype, (function() {
1351  function toColorPart() {
1352    return this.toPaddedString(2, 16);
1353  }
1354
1355  function succ() {
1356    return this + 1;
1357  }
1358
1359  function times(iterator, context) {
1360    $R(0, this, true).each(iterator, context);
1361    return this;
1362  }
1363
1364  function toPaddedString(length, radix) {
1365    var string = this.toString(radix || 10);
1366    return '0'.times(length - string.length) + string;
1367  }
1368
1369  function abs() {
1370    return Math.abs(this);
1371  }
1372
1373  function round() {
1374    return Math.round(this);
1375  }
1376
1377  function ceil() {
1378    return Math.ceil(this);
1379  }
1380
1381  function floor() {
1382    return Math.floor(this);
1383  }
1384
1385  return {
1386    toColorPart:    toColorPart,
1387    succ:           succ,
1388    times:          times,
1389    toPaddedString: toPaddedString,
1390    abs:            abs,
1391    round:          round,
1392    ceil:           ceil,
1393    floor:          floor
1394  };
1395})());
1396
1397function $R(start, end, exclusive) {
1398  return new ObjectRange(start, end, exclusive);
1399}
1400
1401var ObjectRange = Class.create(Enumerable, (function() {
1402  function initialize(start, end, exclusive) {
1403    this.start = start;
1404    this.end = end;
1405    this.exclusive = exclusive;
1406  }
1407
1408  function _each(iterator) {
1409    var value = this.start;
1410    while (this.include(value)) {
1411      iterator(value);
1412      value = value.succ();
1413    }
1414  }
1415
1416  function include(value) {
1417    if (value < this.start)
1418      return false;

1419    if (this.exclusive)
1420      return value < this.end;
1421    return value <= this.end;
1422  }
1423
1424  return {
1425    initialize: initialize,
1426    _each:      _each,
1427    include:    include
1428  };
1429})());
1430
1431
1432
1433var Ajax = {
1434  getTransport: function() {
1435    return Try.these(
1436      function() {return new XMLHttpRequest()},
1437      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1438      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1439    ) || false;
1440  },
1441
1442  activeRequestCount: 0
1443};
1444
1445Ajax.Responders = {
1446  responders: [],
1447
1448  _each: function(iterator) {
1449    this.responders._each(iterator);
1450  },
1451
1452  register: function(responder) {
1453    if (!this.include(responder))
1454      this.responders.push(responder);
1455  },
1456
1457  unregister: function(responder) {
1458    this.responders = this.responders.without(responder);
1459  },
1460
1461  dispatch: function(callback, request, transport, json) {
1462    this.each(function(responder) {
1463      if (Object.isFunction(responder[callback])) {
1464        try {
1465          responder[callback].apply(responder, [request, transport, json]);
1466        } catch (e) { }
1467      }
1468    });
1469  }
1470};
1471
1472Object.extend(Ajax.Responders, Enumerable);
1473
1474Ajax.Responders.register({
1475  onCreate:   function() { Ajax.activeRequestCount++ },

1476  onComplete: function() { Ajax.activeRequestCount-- }
1477});
1478Ajax.Base = Class.create({
1479  initialize: function(options) {
1480    this.options = {
1481      method:       'post',
1482      asynchronous: true,
1483      contentType:  'application/x-www-form-urlencoded',
1484      encoding:     'UTF-8',
1485      parameters:   '',
1486      evalJSON:     true,
1487      evalJS:       true
1488    };
1489    Object.extend(this.options, options || { });
1490
1491    this.options.method = this.options.method.toLowerCase();
1492
1493    if (Object.isHash(this.options.parameters))
1494      this.options.parameters = this.options.parameters.toObject();
1495  }
1496});
1497Ajax.Request = Class.create(Ajax.Base, {
1498  _complete: false,
1499
1500  initialize: function($super, url, options) {
1501    $super(options);
1502    this.transport = Ajax.getTransport();
1503    this.request(url);
1504  },
1505
1506  request: function(url) {
1507    this.url = url;
1508    this.method = this.options.method;
1509    var params = Object.isString(this.options.parameters) ?
1510          this.options.parameters :
1511          Object.toQueryString(this.options.parameters);
1512
1513    if (!['get', 'post'].include(this.method)) {
1514      params += (params ? '&' : '') + "_method=" + this.method;
1515      this.method = 'post';
1516    }
1517
1518    if (params && this.method === 'get') {
1519      this.url += (this.url.include('?') ? '&' : '?') + params;
1520    }
1521
1522    this.parameters = params.toQueryParams();
1523
1524    try {
1525      var response = new Ajax.Response(this);
1526      if (this.options.onCreate) this.options.onCreate(response);
1527      Ajax.Responders.dispatch('onCreate', this, response);
1528
1529      this.transport.open(this.method.toUpperCase(), this.url,
1530        this.options.asynchronous);
1531
1532      if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1533
1534      this.transport.onreadystatechange = this.onStateChange.bind(this);
1535      this.setRequestHeaders();
1536
1537      this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1538      this.transport.send(this.body);
1539
1540      /* Force Firefox to handle ready state 4 for synchronous requests */
1541      if (!this.options.asynchronous && this.transport.overrideMimeType)
1542        this.onStateChange();
1543
1544    }
1545    catch (e) {
1546      this.dispatchException(e);
1547    }
1548  },
1549
1550  onStateChange: function() {
1551    var readyState = this.transport.readyState;
1552    if (readyState > 1 && !((readyState == 4) && this._complete))
1553      this.respondToReadyState(this.transport.readyState);
1554  },
1555
1556  setRequestHeaders: function() {
1557    var headers = {
1558      'X-Requested-With': 'XMLHttpRequest',
1559      'X-Prototype-Version': Prototype.Version,
1560      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1561    };
1562
1563    if (this.method == 'post') {
1564      headers['Content-type'] = this.options.contentType +
1565        (this.options.encoding ? '; charset=' + this.options.encoding : '');
1566
1567      /* Force "Connection: close" for older Mozilla browsers to work
1568       * around a bug where XMLHttpRequest sends an incorrect
1569       * Content-length header. See Mozilla Bugzilla #246651.
1570       */
1571      if (this.transport.overrideMimeType &&
1572          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1573            headers['Connection'] = 'close';
1574    }
1575
1576    if (typeof this.options.requestHeaders == 'object') {
1577      var extras = this.options.requestHeaders;
1578
1579      if (Object.isFunction(extras.push))
1580        for (var i = 0, length = extras.length; i < length; i += 2)
1581          headers[extras[i]] = extras[i+1];
1582      else
1583        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
1584    }
1585
1586    for (var name in headers)
1587      this.transport.setRequestHeader(name, headers[name]);
1588  },
1589
1590  success: function() {
1591    var status = this.getStatus();
1592    return !status || (status >= 200 && status < 300) || status == 304;
1593  },
1594
1595  getStatus: function() {
1596    try {
1597      if (this.transport.status === 1223) return 204;
1598      return this.transport.status || 0;
1599    } catch (e) { return 0 }
1600  },
1601
1602  respondToReadyState: function(readyState) {
1603    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1604
1605    if (state == 'Complete') {

1606      try {
1607        this._complete = true;
1608        (this.options['on' + response.status]
1609         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
1610         || Prototype.emptyFunction)(response, response.headerJSON);
1611      } catch (e) {
1612        this.dispatchException(e);
1613      }
1614
1615      var contentType = response.getHeader('Content-type');
1616      if (this.options.evalJS == 'force'
1617          || (this.options.evalJS && this.isSameOrigin() && contentType
1618          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1619        this.evalResponse();
1620    }
1621
1622    try {
1623      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1624      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1625    } catch (e) {
1626      this.dispatchException(e);
1627    }
1628
1629    if (state == 'Complete') {
1630      this.transport.onreadystatechange = Prototype.emptyFunction;
1631    }
1632  },
1633
1634  isSameOrigin: function() {
1635    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
1636    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
1637      protocol: location.protocol,
1638      domain: document.domain,
1639      port: location.port ? ':' + location.port : ''
1640    }));
1641  },
1642
1643  getHeader: function(name) {
1644    try {
1645      return this.transport.getResponseHeader(name) || null;
1646    } catch (e) { return null; }
1647  },
1648
1649  evalResponse: function() {
1650    try {
1651      return eval((this.transport.responseText || '').unfilterJSON());
1652    } catch (e) {
1653      this.dispatchException(e);
1654    }
1655  },
1656
1657  dispatchException: function(exception) {
1658    (this.options.onException || Prototype.emptyFunction)(this, exception);
1659    Ajax.Responders.dispatch('onException', this, exception);
1660  }
1661});
1662
1663Ajax.Request.Events =
1664  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1665
1666
1667
1668
1669
1670
1671
1672
1673Ajax.Response = Class.create({
1674  initialize: function(request){
1675    this.request = request;
1676    var transport  = this.transport  = request.transport,
1677        readyState = this.readyState = transport.readyState;
1678
1679    if ((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1680      this.status       = this.getStatus();
1681      this.statusText   = this.getStatusText();
1682      this.responseText = String.interpret(transport.responseText);
1683      this.headerJSON   = this._getHeaderJSON();
1684    }
1685
1686    if (readyState == 4) {
1687      var xml = transport.responseXML;
1688      this.responseXML  = Object.isUndefined(xml) ? null : xml;
1689      this.responseJSON = this._getResponseJSON();
1690    }
1691  },
1692
1693  status:      0,
1694
1695  statusText: '',
1696
1697  getStatus: Ajax.Request.prototype.getStatus,
1698
1699  getStatusText: function() {
1700    try {
1701      return this.transport.statusText || '';
1702    } catch (e) { return '' }
1703  },
1704
1705  getHeader: Ajax.Request.prototype.getHeader,
1706
1707  getAllHeaders: function() {
1708    try {
1709      return this.getAllResponseHeaders();
1710    } catch (e) { return null }
1711  },
1712
1713  getResponseHeader: function(name) {
1714    return this.transport.getResponseHeader(name);
1715  },
1716
1717  getAllResponseHeaders: function() {
1718    return this.transport.getAllResponseHeaders();
1719  },
1720
1721  _getHeaderJSON: function() {
1722    var json = this.getHeader('X-JSON');
1723    if (!json) return null;
1724    json = decodeURIComponent(escape(json));
1725    try {
1726      return json.evalJSON(this.request.options.sanitizeJSON ||
1727        !this.request.isSameOrigin());
1728    } catch (e) {
1729      this.request.dispatchException(e);
1730    }
1731  },
1732
1733  _getResponseJSON: function() {
1734    var options = this.request.options;
1735    if (!options.evalJSON || (options.evalJSON != 'force' &&
1736      !(this.getHeader('Content-type') || '').include('application/json')) ||
1737        this.responseText.blank())
1738          return null;
1739    try {
1740      return this.responseText.evalJSON(options.sanitizeJSON ||
1741        !this.request.isSameOrigin());
1742    } catch (e) {
1743      this.request.dispatchException(e);
1744    }
1745  }
1746});
1747
1748Ajax.Updater = Class.create(Ajax.Request, {
1749  initialize: function($super, container, url, options) {
1750    this.container = {
1751      success: (container.success || container),
1752      failure: (container.failure || (container.success ? null : container))
1753    };
1754
1755    options = Object.clone(options);
1756    var onComplete = options.onComplete;
1757    options.onComplete = (function(response, json) {
1758      this.updateContent(response.responseText);
1759      if (Object.isFunction(onComplete)) onComplete(response, json);
1760    }).bind(this);
1761
1762    $super(url, options);
1763  },
1764
1765  updateContent: function(responseText) {
1766    var receiver = this.container[this.success() ? 'success' : 'failure'],
1767        options = this.options;
1768
1769    if (!options.evalScripts) responseText = responseText.stripScripts();
1770
1771    if (receiver = $(receiver)) {
1772      if (options.insertion) {
1773        if (Object.isString(options.insertion)) {
1774          var insertion = { }; insertion[options.insertion] = responseText;
1775          receiver.insert(insertion);
1776        }
1777        else options.insertion(receiver, responseText);
1778      }
1779      else receiver.update(responseText);
1780    }
1781  }
1782});
1783

1784Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1785  initialize: function($super, container, url, options) {
1786    $super(options);
1787    this.onComplete = this.options.onComplete;
1788
1789    this.frequency = (this.options.frequency || 2);
1790    this.decay = (this.options.decay || 1);
1791
1792    this.updater = { };
1793    this.container = container;
1794    this.url = url;
1795
1796    this.start();
1797  },
1798
1799  start: function() {
1800    this.options.onComplete = this.updateComplete.bind(this);
1801    this.onTimerEvent();
1802  },
1803
1804  stop: function() {
1805    this.updater.options.onComplete = undefined;
1806    clearTimeout(this.timer);
1807    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1808  },
1809
1810  updateComplete: function(response) {
1811    if (this.options.decay) {
1812      this.decay = (response.responseText == this.lastText ?
1813        this.decay * this.options.decay : 1);
1814
1815      this.lastText = response.responseText;
1816    }
1817    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1818  },
1819
1820  onTimerEvent: function() {
1821    this.updater = new Ajax.Updater(this.container, this.url, this.options);
1822  }
1823});
1824
1825
1826function $(element) {
1827  if (arguments.length > 1) {
1828    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1829      elements.push($(arguments[i]));
1830    return elements;
1831  }
1832  if (Object.isString(element))
1833    element = document.getElementById(element);
1834  return Element.extend(element);
1835}
1836
1837if (Prototype.BrowserFeatures.XPath) {
1838  document._getElementsByXPath = function(expression, parentElement) {
1839    var results = [];
1840    var query = document.evaluate(expression, $(parentElement) || document,
1841      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1842    for (var i = 0, length = query.snapshotLength; i < length; i++)
1843      results.push(Element.extend(query.snapshotItem(i)));
1844    return results;
1845  };
1846}
1847
1848/*--------------------------------------------------------------------------*/
1849
1850if (!Node) var Node = { };
1851
1852if (!Node.ELEMENT_NODE) {
1853  Object.extend(Node, {
1854    ELEMENT_NODE: 1,
1855    ATTRIBUTE_NODE: 2,
1856    TEXT_NODE: 3,
1857    CDATA_SECTION_NODE: 4,
1858    ENTITY_REFERENCE_NODE: 5,
1859    ENTITY_NODE: 6,
1860    PROCESSING_INSTRUCTION_NODE: 7,
1861    COMMENT_NODE: 8,
1862    DOCUMENT_NODE: 9,
1863    DOCUMENT_TYPE_NODE: 10,
1864    DOCUMENT_FRAGMENT_NODE: 11,
1865    NOTATION_NODE: 12
1866  });
1867}
1868
1869
1870
1871(function(global) {
1872  function shouldUseCache(tagName, attributes) {
1873    if (tagName === 'select') return false;
1874    if ('type' in attributes) return false;
1875    return true;
1876  }
1877
1878  var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){
1879    try {
1880      var el = document.createElement('<input name="x">');
1881      return el.tagName.toLowerCase() === 'input' && el.name === 'x';
1882    }
1883    catch(err) {
1884      return false;
1885    }
1886  })();
1887
1888  var element = global.Element;
1889
1890  global.Element = function(tagName, attributes) {
1891    attributes = attributes || { };
1892    tagName = tagName.toLowerCase();
1893    var cache = Element.cache;
1894
1895    if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
1896      tagName = '<' + tagName + ' name="' + attributes.name + '">';
1897      delete attributes.name;
1898      return Element.writeAttribute(document.createElement(tagName), attributes);
1899    }
1900
1901    if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1902
1903    var node = shouldUseCache(tagName, attributes) ?
1904     cache[tagName].cloneNode(false) : document.createElement(tagName);
1905
1906    return Element.writeAttribute(node, attributes);
1907  };
1908
1909  Object.extend(global.Element, element || { });
1910  if (element) global.Element.prototype = element.prototype;
1911
1912})(this);
1913
1914Element.idCounter = 1;
1915Element.cache = { };
1916
1917Element._purgeElement = function(element) {
1918  var uid = element._prototypeUID;
1919  if (uid) {
1920    Element.stopObserving(element);
1921    element._prototypeUID = void 0;
1922    delete Element.Storage[uid];
1923  }
1924}
1925
1926Element.Methods = {
1927  visible: function(element) {
1928    return $(element).style.display != 'none';
1929  },
1930
1931  toggle: function(element) {
1932    element = $(element);
1933    Element[Element.visible(element) ? 'hide' : 'show'](element);
1934    return element;
1935  },
1936
1937  hide: function(element) {
1938    element = $(element);
1939    element.style.display = 'none';
1940    return element;
1941  },
1942
1943  show: function(element) {
1944    element = $(element);
1945    element.style.display = '';
1946    return element;
1947  },
1948
1949  remove: function(element) {
1950    element = $(element);
1951    element.parentNode.removeChild(element);
1952    return element;
1953  },
1954
1955  update: (function(){
1956
1957    var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
1958      var el = document.createElement("select"),
1959          isBuggy = true;
1960      el.innerHTML = "<option value=\"test\">test</option>";
1961      if (el.options && el.options[0]) {
1962        isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
1963      }
1964      el = null;
1965      return isBuggy;
1966    })();
1967
1968    var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){

1969      try {
1970        var el = document.createElement("table");
1971        if (el && el.tBodies) {
1972          el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
1973          var isBuggy = typeof el.tBodies[0] == "undefined";
1974          el = null;
1975          return isBuggy;
1976        }
1977      } catch (e) {
1978        return true;
1979      }
1980    })();
1981
1982    var LINK_ELEMENT_INNERHTML_BUGGY = (function() {
1983      try {
1984        var el = document.createElement('div');
1985        el.innerHTML = "<link>";
1986        var isBuggy = (el.childNodes.length === 0);
1987        el = null;
1988        return isBuggy;
1989      } catch(e) {
1990        return true;
1991      }
1992    })();
1993
1994    var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
1995     TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;
1996
1997    var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
1998      var s = document.createElement("script"),
1999          isBuggy = false;
2000      try {
2001        s.appendChild(document.createTextNode(""));
2002        isBuggy = !s.firstChild ||
2003          s.firstChild && s.firstChild.nodeType !== 3;
2004      } catch (e) {
2005        isBuggy = true;
2006      }
2007      s = null;
2008      return isBuggy;
2009    })();
2010
2011
2012    function update(element, content) {
2013      element = $(element);
2014      var purgeElement = Element._purgeElement;
2015
2016      var descendants = element.getElementsByTagName('*'),
2017       i = descendants.length;
2018      while (i--) purgeElement(descendants[i]);
2019
2020      if (content && content.toElement)
2021        content = content.toElement();
2022
2023      if (Object.isElement(content))
2024        return element.update().insert(content);
2025
2026      content = Object.toHTML(content);
2027
2028      var tagName = element.tagName.toUpperCase();
2029
2030      if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
2031        element.text = content;
2032        return element;
2033      }
2034
2035      if (ANY_INNERHTML_BUGGY) {
2036        if (tagName in Element._insertionTranslations.tags) {
2037          while (element.firstChild) {
2038            element.removeChild(element.firstChild);
2039          }
2040          Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2041            .each(function(node) {
2042              element.appendChild(node)
2043            });
2044        } else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1) {
2045          while (element.firstChild) {
2046            element.removeChild(element.firstChild);
2047          }
2048          var nodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
2049          nodes.each(function(node) { element.appendChild(node) });
2050        }
2051        else {
2052          element.innerHTML = content.stripScripts();
2053        }
2054      }
2055      else {
2056        element.innerHTML = content.stripScripts();
2057      }
2058
2059      content.evalScripts.bind(content).defer();
2060      return element;
2061    }
2062
2063    return update;
2064  })(),
2065
2066  replace: function(element, content) {
2067    element = $(element);
2068    if (content && content.toElement) content = content.toElement();
2069    else if (!Object.isElement(content)) {
2070      content = Object.toHTML(content);
2071      var range = element.ownerDocument.createRange();
2072      range.selectNode(element);
2073      content.evalScripts.bind(content).defer();
2074      content = range.createContextualFragment(content.stripScripts());
2075    }
2076    element.parentNode.replaceChild(content, element);
2077    return element;
2078  },
2079
2080  insert: function(element, insertions) {
2081    element = $(element);
2082
2083    if (Object.isString(insertions) || Object.isNumber(insertions) ||
2084        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
2085          insertions = {bottom:insertions};
2086
2087    var content, insert, tagName, childNodes;
2088
2089    for (var position in insertions) {
2090      content  = insertions[position];
2091      position = position.toLowerCase();
2092      insert = Element._insertionTranslations[position];
2093
2094      if (content && content.toElement) content = content.toElement();
2095      if (Object.isElement(content)) {
2096        insert(element, content);
2097        continue;
2098      }
2099
2100      content = Object.toHTML(content);
2101
2102      tagName = ((position == 'before' || position == 'after')
2103        ? element.parentNode : element).tagName.toUpperCase();
2104
2105      childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2106
2107      if (position == 'top' || position == 'after') childNodes.reverse();
2108      childNodes.each(insert.curry(element));
2109
2110      content.evalScripts.bind(content).defer();
2111    }
2112
2113    return element;
2114  },
2115
2116  wrap: function(element, wrapper, attributes) {
2117    element = $(element);
2118    if (Object.isElement(wrapper))
2119      $(wrapper).writeAttribute(attributes || { });
2120    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
2121    else wrapper = new Element('div', wrapper);
2122    if (element.parentNode)
2123      element.parentNode.replaceChild(wrapper, element);
2124    wrapper.appendChild(element);
2125    return wrapper;
2126  },
2127
2128  inspect: function(element) {
2129    element = $(element);
2130    var result = '<' + element.tagName.toLowerCase();
2131    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
2132      var property = pair.first(),
2133          attribute = pair.last(),
2134          value = (element[property] || '').toString();
2135      if (value) result += ' ' + attribute + '=' + value.inspect(true);
2136    });
2137    return result + '>';
2138  },
2139
2140  recursivelyCollect: function(element, property, maximumLength) {
2141    element = $(element);
2142    maximumLength = maximumLength || -1;
2143    var elements = [];
2144
2145    while (element = element[property]) {
2146      if (element.nodeType == 1)
2147        elements.push(Element.extend(element));
2148      if (elements.length == maximumLength)
2149        break;
2150    }
2151
2152    return elements;
2153  },
2154
2155  ancestors: function(element) {
2156    return Element.recursivelyCollect(element, 'parentNode');
2157  },
2158
2159  descendants: function(element) {
2160    return Element.select(element, "*");
2161  },
2162
2163  firstDescendant: function(element) {
2164    element = $(element).firstChild;
2165    while (element && element.nodeType != 1) element = element.nextSibling;
2166    return $(element);
2167  },
2168
2169  immediateDescendants: function(element) {
2170    var results = [], child = $(element).firstChild;
2171    while (child) {
2172      if (child.nodeType === 1) {
2173        results.push(Element.extend(child));
2174      }
2175      child = child.nextSibling;
2176    }
2177    return results;
2178  },
2179
2180  previousSiblings: function(element, maximumLength) {
2181    return Element.recursivelyCollect(element, 'previousSibling');
2182  },
2183
2184  nextSiblings: function(element) {
2185    return Element.recursivelyCollect(element, 'nextSibling');
2186  },
2187
2188  siblings: function(element) {
2189    element = $(element);
2190    return Element.previousSiblings(element).reverse()
2191      .concat(Element.nextSiblings(element));
2192  },
2193
2194  match: function(element, selector) {
2195    element = $(element);
2196    if (Object.isString(selector))
2197      return Prototype.Selector.match(element, selector);
2198    return selector.match(element);
2199  },
2200
2201  up: function(element, expression, index) {
2202    element = $(element);
2203    if (arguments.length == 1) return $(element.parentNode);
2204    var ancestors = Element.ancestors(element);
2205    return Object.isNumber(expression) ? ancestors[expression] :
2206      Prototype.Selector.find(ancestors, expression, index);
2207  },
2208
2209  down: function(element, expression, index) {
2210    element = $(element);
2211    if (arguments.length == 1) return Element.firstDescendant(element);
2212    return Object.isNumber(expression) ? Element.descendants(element)[expression] :
2213      Element.select(element, expression)[index || 0];
2214  },
2215
2216  previous: function(element, expression, index) {
2217    element = $(element);
2218    if (Object.isNumber(expression)) index = expression, expression = false;

2219    if (!Object.isNumber(index)) index = 0;
2220
2221    if (expression) {
2222      return Prototype.Selector.find(element.previousSiblings(), expression, index);
2223    } else {
2224      return element.recursivelyCollect("previousSibling", index + 1)[index];
2225    }
2226  },
2227
2228  next: function(element, expression, index) {
2229    element = $(element);
2230    if (Object.isNumber(expression)) index = expression, expression = false;
2231    if (!Object.isNumber(index)) index = 0;
2232
2233    if (expression) {
2234      return Prototype.Selector.find(element.nextSiblings(), expression, index);
2235    } else {
2236      var maximumLength = Object.isNumber(index) ? index + 1 : 1;
2237      return element.recursivelyCollect("nextSibling", index + 1)[index];
2238    }
2239  },
2240
2241
2242  select: function(element) {
2243    element = $(element);
2244    var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
2245    return Prototype.Selector.select(expressions, element);
2246  },
2247
2248  adjacent: function(element) {
2249    element = $(element);
2250    var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
2251    return Prototype.Selector.select(expressions, element.parentNode).without(element);
2252  },
2253
2254  identify: function(element) {
2255    element = $(element);
2256    var id = Element.readAttribute(element, 'id');
2257    if (id) return id;
2258    do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
2259    Element.writeAttribute(element, 'id', id);
2260    return id;
2261  },
2262
2263  readAttribute: function(element, name) {
2264    element = $(element);
2265    if (Prototype.Browser.IE) {
2266      var t = Element._attributeTranslations.read;
2267      if (t.values[name]) return t.values[name](element, name);
2268      if (t.names[name]) name = t.names[name];
2269      if (name.include(':')) {
2270        return (!element.attributes || !element.attributes[name]) ? null :
2271         element.attributes[name].value;
2272      }
2273    }
2274    return element.getAttribute(name);
2275  },
2276
2277  writeAttribute: function(element, name, value) {
2278    element = $(element);
2279    var attributes = { }, t = Element._attributeTranslations.write;
2280
2281    if (typeof name == 'object') attributes = name;
2282    else attributes[name] = Object.isUndefined(value) ? true : value;
2283
2284    for (var attr in attributes) {
2285      name = t.names[attr] || attr;
2286      value = attributes[attr];
2287      if (t.values[attr]) name = t.values[attr](element, value);
2288      if (value === false || value === null)
2289        element.removeAttribute(name);
2290      else if (value === true)
2291        element.setAttribute(name, name);
2292      else element.setAttribute(name, value);
2293    }
2294    return element;
2295  },
2296
2297  getHeight: function(element) {
2298    return Element.getDimensions(element).height;
2299  },
2300
2301  getWidth: function(element) {
2302    return Element.getDimensions(element).width;
2303  },
2304
2305  classNames: function(element) {
2306    return new Element.ClassNames(element);
2307  },
2308
2309  hasClassName: function(element, className) {
2310    if (!(element = $(element))) return;
2311    var elementClassName = element.className;
2312    return (elementClassName.length > 0 && (elementClassName == className ||
2313      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
2314  },
2315
2316  addClassName: function(element, className) {
2317    if (!(element = $(element))) return;
2318    if (!Element.hasClassName(element, className))
2319      element.className += (element.className ? ' ' : '') + className;
2320    return element;
2321  },
2322
2323  removeClassName: function(element, className) {
2324    if (!(element = $(element))) return;
2325    element.className = element.className.replace(
2326      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
2327    return element;
2328  },
2329
2330  toggleClassName: function(element, className) {
2331    if (!(element = $(element))) return;
2332    return Element[Element.hasClassName(element, className) ?
2333      'removeClassName' : 'addClassName'](element, className);
2334  },
2335
2336  cleanWhitespace: function(element) {
2337    element = $(element);
2338    var node = element.firstChild;
2339    while (node) {
2340      var nextNode = node.nextSibling;
2341      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
2342        element.removeChild(node);
2343      node = nextNode;
2344    }
2345    return element;
2346  },
2347
2348  empty: function(element) {
2349    return $(element).innerHTML.blank();
2350  },
2351
2352  descendantOf: function(element, ancestor) {
2353    element = $(element), ancestor = $(ancestor);
2354
2355    if (element.compareDocumentPosition)
2356      return (element.compareDocumentPosition(ancestor) & 8) === 8;
2357
2358    if (ancestor.contains)
2359      return ancestor.contains(element) && ancestor !== element;
2360
2361    while (element = element.parentNode)
2362      if (element == ancestor) return true;
2363
2364    return false;

2365  },
2366
2367  scrollTo: function(element) {
2368    element = $(element);
2369    var pos = Element.cumulativeOffset(element);
2370    window.scrollTo(pos[0], pos[1]);
2371    return element;
2372  },
2373
2374  getStyle: function(element, style) {
2375    element = $(element);
2376    style = style == 'float' ? 'cssFloat' : style.camelize();
2377    var value = element.style[style];
2378    if (!value || value == 'auto') {
2379      var css = document.defaultView.getComputedStyle(element, null);
2380      value = css ? css[style] : null;
2381    }
2382    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
2383    return value == 'auto' ? null : value;
2384  },
2385
2386  getOpacity: function(element) {
2387    return $(element).getStyle('opacity');
2388  },
2389
2390  setStyle: function(element, styles) {
2391    element = $(element);
2392    var elementStyle = element.style, match;
2393    if (Object.isString(styles)) {
2394      element.style.cssText += ';' + styles;
2395      return styles.include('opacity') ?
2396        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
2397    }
2398    for (var property in styles)
2399      if (property == 'opacity') element.setOpacity(styles[property]);
2400      else
2401        elementStyle[(property == 'float' || property == 'cssFloat') ?
2402          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
2403            property] = styles[property];
2404
2405    return element;
2406  },
2407
2408  setOpacity: function(element, value) {
2409    element = $(element);
2410    element.style.opacity = (value == 1 || value === '') ? '' :
2411      (value < 0.00001) ? 0 : value;
2412    return element;
2413  },
2414
2415  makePositioned: function(element) {
2416    element = $(element);
2417    var pos = Element.getStyle(element, 'position');
2418    if (pos == 'static' || !pos) {
2419      element._madePositioned = true;
2420      element.style.position = 'relative';
2421      if (Prototype.Browser.Opera) {
2422        element.style.top = 0;
2423        element.style.left = 0;
2424      }
2425    }
2426    return element;
2427  },
2428
2429  undoPositioned: function(element) {
2430    element = $(element);
2431    if (element._madePositioned) {
2432      element._madePositioned = undefined;
2433      element.style.position =
2434        element.style.top =
2435        element.style.left =
2436        element.style.bottom =
2437        element.style.right = '';
2438    }
2439    return element;
2440  },
2441
2442  makeClipping: function(element) {
2443    element = $(element);
2444    if (element._overflow) return element;
2445    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
2446    if (element._overflow !== 'hidden')
2447      element.style.overflow = 'hidden';
2448    return element;
2449  },
2450
2451  undoClipping: function(element) {
2452    element = $(element);
2453    if (!element._overflow) return element;
2454    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
2455    element._overflow = null;
2456    return element;
2457  },
2458
2459  clonePosition: function(element, source) {
2460    var options = Object.extend({
2461      setLeft:    true,
2462      setTop:     true,
2463      setWidth:   true,
2464      setHeight:  true,
2465      offsetTop:  0,
2466      offsetLeft: 0
2467    }, arguments[2] || { });
2468
2469    source = $(source);
2470    var p = Element.viewportOffset(source), delta = [0, 0], parent = null;
2471
2472    element = $(element);
2473
2474    if (Element.getStyle(element, 'position') == 'absolute') {
2475      parent = Element.getOffsetParent(element);
2476      delta = Element.viewportOffset(parent);
2477    }
2478
2479    if (parent == document.body) {
2480      delta[0] -= document.body.offsetLeft;
2481      delta[1] -= document.body.offsetTop;
2482    }
2483
2484    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
2485    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
2486    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
2487    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2488    return element;
2489  }
2490};
2491
2492Object.extend(Element.Methods, {
2493  getElementsBySelector: Element.Methods.select,
2494
2495  childElements: Element.Methods.immediateDescendants
2496});
2497
2498Element._attributeTranslations = {
2499  write: {
2500    names: {
2501      className: 'class',
2502      htmlFor:   'for'
2503    },
2504    values: { }
2505  }
2506};
2507
2508if (Prototype.Browser.Opera) {
2509  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2510    function(proceed, element, style) {
2511      switch (style) {
2512        case 'height': case 'width':
2513          if (!Element.visible(element)) return null;
2514
2515          var dim = parseInt(proceed(element, style), 10);
2516
2517          if (dim !== element['offset' + style.capitalize()])
2518            return dim + 'px';
2519
2520          var properties;
2521          if (style === 'height') {
2522            properties = ['border-top-width', 'padding-top',
2523             'padding-bottom', 'border-bottom-width'];
2524          }
2525          else {
2526            properties = ['border-left-width', 'padding-left',
2527             'padding-right', 'border-right-width'];
2528          }
2529          return properties.inject(dim, function(memo, property) {
2530            var val = proceed(element, property);
2531            return val === null ? memo : memo - parseInt(val, 10);
2532          }) + 'px';
2533        default: return proceed(element, style);
2534      }
2535    }
2536  );
2537
2538  Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2539    function(proceed, element, attribute) {
2540      if (attribute === 'title') return element.title;
2541      return proceed(element, attribute);
2542    }
2543  );
2544}
2545
2546else if (Prototype.Browser.IE) {
2547  Element.Methods.getStyle = function(element, style) {
2548    element = $(element);
2549    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2550    var value = element.style[style];
2551    if (!value && element.currentStyle) value = element.currentStyle[style];
2552
2553    if (style == 'opacity') {
2554      if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2555        if (value[1]) return parseFloat(value[1]) / 100;
2556      return 1.0;
2557    }
2558
2559    if (value == 'auto') {
2560      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2561        return element['offset' + style.capitalize()] + 'px';
2562      return null;
2563    }
2564    return value;
2565  };
2566
2567  Element.Methods.setOpacity = function(element, value) {
2568    function stripAlpha(filter){
2569      return filter.replace(/alpha\([^\)]*\)/gi,'');
2570    }
2571    element = $(element);
2572    var currentStyle = element.currentStyle;
2573    if ((currentStyle && !currentStyle.hasLayout) ||
2574      (!currentStyle && element.style.zoom == 'normal'))
2575        element.style.zoom = 1;
2576
2577    var filter = element.getStyle('filter'), style = element.style;
2578    if (value == 1 || value === '') {
2579      (filter = stripAlpha(filter)) ?

2580        style.filter = filter : style.removeAttribute('filter');
2581      return element;
2582    } else if (value < 0.00001) value = 0;
2583    style.filter = stripAlpha(filter) +
2584      'alpha(opacity=' + (value * 100) + ')';
2585    return element;
2586  };
2587
2588  Element._attributeTranslations = (function(){
2589
2590    var classProp = 'className',
2591        forProp = 'for',
2592        el = document.createElement('div');
2593
2594    el.setAttribute(classProp, 'x');
2595
2596    if (el.className !== 'x') {
2597      el.setAttribute('class', 'x');
2598      if (el.className === 'x') {
2599        classProp = 'class';
2600      }
2601    }
2602    el = null;
2603
2604    el = document.createElement('label');
2605    el.setAttribute(forProp, 'x');
2606    if (el.htmlFor !== 'x') {
2607      el.setAttribute('htmlFor', 'x');
2608      if (el.htmlFor === 'x') {
2609        forProp = 'htmlFor';
2610      }
2611    }
2612    el = null;
2613
2614    return {
2615      read: {
2616        names: {
2617          'class':      classProp,
2618          'className':  classProp,
2619          'for':        forProp,
2620          'htmlFor':    forProp
2621        },
2622        values: {
2623          _getAttr: function(element, attribute) {
2624            return element.getAttribute(attribute);
2625          },
2626          _getAttr2: function(element, attribute) {
2627            return element.getAttribute(attribute, 2);
2628          },
2629          _getAttrNode: function(element, attribute) {
2630            var node = element.getAttributeNode(attribute);
2631            return node ? node.value : "";
2632          },
2633          _getEv: (function(){
2634
2635            var el = document.createElement('div'), f;
2636            el.onclick = Prototype.emptyFunction;
2637            var value = el.getAttribute('onclick');
2638
2639            if (String(value).indexOf('{') > -1) {
2640              f = function(element, attribute) {
2641                attribute = element.getAttribute(attribute);
2642                if (!attribute) return null;
2643                attribute = attribute.toString();
2644                attribute = attribute.split('{')[1];
2645                attribute = attribute.split('}')[0];
2646                return attribute.strip();
2647              };
2648            }
2649            else if (value === '') {
2650              f = function(element, attribute) {
2651                attribute = element.getAttribute(attribute);
2652                if (!attribute) return null;
2653                return attribute.strip();
2654              };
2655            }
2656            el = null;
2657            return f;
2658          })(),
2659          _flag: function(element, attribute) {
2660            return $(element).hasAttribute(attribute) ? attribute : null;
2661          },
2662          style: function(element) {
2663            return element.style.cssText.toLowerCase();
2664          },
2665          title: function(element) {
2666            return element.title;
2667          }
2668        }
2669      }
2670    }
2671  })();
2672
2673  Element._attributeTranslations.write = {
2674    names: Object.extend({
2675      cellpadding: 'cellPadding',
2676      cellspacing: 'cellSpacing'
2677    }, Element._attributeTranslations.read.names),
2678    values: {
2679      checked: function(element, value) {
2680        element.checked = !!value;
2681      },
2682
2683      style: function(element, value) {
2684        element.style.cssText = value ? value : '';
2685      }
2686    }
2687  };
2688
2689  Element._attributeTranslations.has = {};
2690
2691  $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2692      'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
2693    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2694    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2695  });
2696
2697  (function(v) {
2698    Object.extend(v, {
2699      href:        v._getAttr2,
2700      src:         v._getAttr2,
2701      type:        v._getAttr,
2702      action:      v._getAttrNode,
2703      disabled:    v._flag,
2704      checked:     v._flag,
2705      readonly:    v._flag,
2706      multiple:    v._flag,
2707      onload:      v._getEv,
2708      onunload:    v._getEv,
2709      onclick:     v._getEv,
2710      ondblclick:  v._getEv,
2711      onmousedown: v._getEv,
2712      onmouseup:   v._getEv,
2713      onmouseover: v._getEv,
2714      onmousemove: v._getEv,
2715      onmouseout:  v._getEv,
2716      onfocus:     v._getEv,
2717      onblur:      v._getEv,
2718      onkeypress:  v._getEv,
2719      onkeydown:   v._getEv,
2720      onkeyup:     v._getEv,
2721      onsubmit:    v._getEv,