source: ruby/trunk/rails/cancerehr/public/javascripts/prototype.js@ 12

Last change on this file since 12 was 12, checked in by KOBAYASHI, Shinji, 16 years ago

prepare cancerehr
File size: 122.7 KB
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1/* Prototype JavaScript framework, version 1.6.0.1
2 * (c) 2005-2007 Sam Stephenson
3 *
4 * Prototype is freely distributable under the terms of an MIT-style license.
5 * For details, see the Prototype web site: http://www.prototypejs.org/
6 *
7 *--------------------------------------------------------------------------*/
8
9var Prototype = {
10 Version: '1.6.0.1',
11
12 Browser: {
13 IE: !!(window.attachEvent && !window.opera),
14 Opera: !!window.opera,
15 WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
16 Gecko: navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
17 MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
18 },
19
20 BrowserFeatures: {
21 XPath: !!document.evaluate,
22 ElementExtensions: !!window.HTMLElement,
23 SpecificElementExtensions:
24 document.createElement('div').__proto__ &&
25 document.createElement('div').__proto__ !==
26 document.createElement('form').__proto__
27 },
28
29 ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
30 JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
31
32 emptyFunction: function() { },
33 K: function(x) { return x }
34};
35
36if (Prototype.Browser.MobileSafari)
37 Prototype.BrowserFeatures.SpecificElementExtensions = false;
38
39
40/* Based on Alex Arnell's inheritance implementation. */
41var Class = {
42 create: function() {
43 var parent = null, properties = $A(arguments);
44 if (Object.isFunction(properties[0]))
45 parent = properties.shift();
46
47 function klass() {
48 this.initialize.apply(this, arguments);
49 }
50
51 Object.extend(klass, Class.Methods);
52 klass.superclass = parent;
53 klass.subclasses = [];
54
55 if (parent) {
56 var subclass = function() { };
57 subclass.prototype = parent.prototype;
58 klass.prototype = new subclass;
59 parent.subclasses.push(klass);
60 }
61
62 for (var i = 0; i < properties.length; i++)
63 klass.addMethods(properties[i]);
64
65 if (!klass.prototype.initialize)
66 klass.prototype.initialize = Prototype.emptyFunction;
67
68 klass.prototype.constructor = klass;
69
70 return klass;
71 }
72};
73
74Class.Methods = {
75 addMethods: function(source) {
76 var ancestor = this.superclass && this.superclass.prototype;
77 var properties = Object.keys(source);
78
79 if (!Object.keys({ toString: true }).length)
80 properties.push("toString", "valueOf");
81
82 for (var i = 0, length = properties.length; i < length; i++) {
83 var property = properties[i], value = source[property];
84 if (ancestor && Object.isFunction(value) &&
85 value.argumentNames().first() == "$super") {
86 var method = value, value = Object.extend((function(m) {
87 return function() { return ancestor[m].apply(this, arguments) };
88 })(property).wrap(method), {
89 valueOf: function() { return method },
90 toString: function() { return method.toString() }
91 });
92 }
93 this.prototype[property] = value;
94 }
95
96 return this;
97 }
98};
99
100var Abstract = { };
101
102Object.extend = function(destination, source) {
103 for (var property in source)
104 destination[property] = source[property];
105 return destination;
106};
107
108Object.extend(Object, {
109 inspect: function(object) {
110 try {
111 if (Object.isUndefined(object)) return 'undefined';
112 if (object === null) return 'null';
113 return object.inspect ? object.inspect() : object.toString();
114 } catch (e) {
115 if (e instanceof RangeError) return '...';
116 throw e;
117 }
118 },
119
120 toJSON: function(object) {
121 var type = typeof object;
122 switch (type) {
123 case 'undefined':
124 case 'function':
125 case 'unknown': return;
126 case 'boolean': return object.toString();
127 }
128
129 if (object === null) return 'null';
130 if (object.toJSON) return object.toJSON();
131 if (Object.isElement(object)) return;
132
133 var results = [];
134 for (var property in object) {
135 var value = Object.toJSON(object[property]);
136 if (!Object.isUndefined(value))
137 results.push(property.toJSON() + ': ' + value);
138 }
139
140 return '{' + results.join(', ') + '}';
141 },
142
143 toQueryString: function(object) {
144 return $H(object).toQueryString();
145 },
146
147 toHTML: function(object) {
148 return object && object.toHTML ? object.toHTML() : String.interpret(object);
149 },
150
151 keys: function(object) {
152 var keys = [];
153 for (var property in object)
154 keys.push(property);
155 return keys;
156 },
157
158 values: function(object) {
159 var values = [];
160 for (var property in object)
161 values.push(object[property]);
162 return values;
163 },
164
165 clone: function(object) {
166 return Object.extend({ }, object);
167 },
168
169 isElement: function(object) {
170 return object && object.nodeType == 1;
171 },
172
173 isArray: function(object) {
174 return object && object.constructor === Array;
175 },
176
177 isHash: function(object) {
178 return object instanceof Hash;
179 },
180
181 isFunction: function(object) {
182 return typeof object == "function";
183 },
184
185 isString: function(object) {
186 return typeof object == "string";
187 },
188
189 isNumber: function(object) {
190 return typeof object == "number";
191 },
192
193 isUndefined: function(object) {
194 return typeof object == "undefined";
195 }
196});
197
198Object.extend(Function.prototype, {
199 argumentNames: function() {
200 var names = this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
201 return names.length == 1 && !names[0] ? [] : names;
202 },
203
204 bind: function() {
205 if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
206 var __method = this, args = $A(arguments), object = args.shift();
207 return function() {
208 return __method.apply(object, args.concat($A(arguments)));
209 }
210 },
211
212 bindAsEventListener: function() {
213 var __method = this, args = $A(arguments), object = args.shift();
214 return function(event) {
215 return __method.apply(object, [event || window.event].concat(args));
216 }
217 },
218
219 curry: function() {
220 if (!arguments.length) return this;
221 var __method = this, args = $A(arguments);
222 return function() {
223 return __method.apply(this, args.concat($A(arguments)));
224 }
225 },
226
227 delay: function() {
228 var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
229 return window.setTimeout(function() {
230 return __method.apply(__method, args);
231 }, timeout);
232 },
233
234 wrap: function(wrapper) {
235 var __method = this;
236 return function() {
237 return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
238 }
239 },
240
241 methodize: function() {
242 if (this._methodized) return this._methodized;
243 var __method = this;
244 return this._methodized = function() {
245 return __method.apply(null, [this].concat($A(arguments)));
246 };
247 }
248});
249
250Function.prototype.defer = Function.prototype.delay.curry(0.01);
251
252Date.prototype.toJSON = function() {
253 return '"' + this.getUTCFullYear() + '-' +
254 (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
255 this.getUTCDate().toPaddedString(2) + 'T' +
256 this.getUTCHours().toPaddedString(2) + ':' +
257 this.getUTCMinutes().toPaddedString(2) + ':' +
258 this.getUTCSeconds().toPaddedString(2) + 'Z"';
259};
260
261var Try = {
262 these: function() {
263 var returnValue;
264
265 for (var i = 0, length = arguments.length; i < length; i++) {
266 var lambda = arguments[i];
267 try {
268 returnValue = lambda();
269 break;
270 } catch (e) { }
271 }
272
273 return returnValue;
274 }
275};
276
277RegExp.prototype.match = RegExp.prototype.test;
278
279RegExp.escape = function(str) {
280 return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
281};
282
283/*--------------------------------------------------------------------------*/
284
285var PeriodicalExecuter = Class.create({
286 initialize: function(callback, frequency) {
287 this.callback = callback;
288 this.frequency = frequency;
289 this.currentlyExecuting = false;
290
291 this.registerCallback();
292 },
293
294 registerCallback: function() {
295 this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
296 },
297
298 execute: function() {
299 this.callback(this);
300 },
301
302 stop: function() {
303 if (!this.timer) return;
304 clearInterval(this.timer);
305 this.timer = null;
306 },
307
308 onTimerEvent: function() {
309 if (!this.currentlyExecuting) {
310 try {
311 this.currentlyExecuting = true;
312 this.execute();
313 } finally {
314 this.currentlyExecuting = false;
315 }
316 }
317 }
318});
319Object.extend(String, {
320 interpret: function(value) {
321 return value == null ? '' : String(value);
322 },
323 specialChar: {
324 '\b': '\\b',
325 '\t': '\\t',
326 '\n': '\\n',
327 '\f': '\\f',
328 '\r': '\\r',
329 '\\': '\\\\'
330 }
331});
332
333Object.extend(String.prototype, {
334 gsub: function(pattern, replacement) {
335 var result = '', source = this, match;
336 replacement = arguments.callee.prepareReplacement(replacement);
337
338 while (source.length > 0) {
339 if (match = source.match(pattern)) {
340 result += source.slice(0, match.index);
341 result += String.interpret(replacement(match));
342 source = source.slice(match.index + match[0].length);
343 } else {
344 result += source, source = '';
345 }
346 }
347 return result;
348 },
349
350 sub: function(pattern, replacement, count) {
351 replacement = this.gsub.prepareReplacement(replacement);
352 count = Object.isUndefined(count) ? 1 : count;
353
354 return this.gsub(pattern, function(match) {
355 if (--count < 0) return match[0];
356 return replacement(match);
357 });
358 },
359
360 scan: function(pattern, iterator) {
361 this.gsub(pattern, iterator);
362 return String(this);
363 },
364
365 truncate: function(length, truncation) {
366 length = length || 30;
367 truncation = Object.isUndefined(truncation) ? '...' : truncation;
368 return this.length > length ?
369 this.slice(0, length - truncation.length) + truncation : String(this);
370 },
371
372 strip: function() {
373 return this.replace(/^\s+/, '').replace(/\s+$/, '');
374 },
375
376 stripTags: function() {
377 return this.replace(/<\/?[^>]+>/gi, '');
378 },
379
380 stripScripts: function() {
381 return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
382 },
383
384 extractScripts: function() {
385 var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
386 var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
387 return (this.match(matchAll) || []).map(function(scriptTag) {
388 return (scriptTag.match(matchOne) || ['', ''])[1];
389 });
390 },
391
392 evalScripts: function() {
393 return this.extractScripts().map(function(script) { return eval(script) });
394 },
395
396 escapeHTML: function() {
397 var self = arguments.callee;
398 self.text.data = this;
399 return self.div.innerHTML;
400 },
401
402 unescapeHTML: function() {
403 var div = new Element('div');
404 div.innerHTML = this.stripTags();
405 return div.childNodes[0] ? (div.childNodes.length > 1 ?
406 $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
407 div.childNodes[0].nodeValue) : '';
408 },
409
410 toQueryParams: function(separator) {
411 var match = this.strip().match(/([^?#]*)(#.*)?$/);
412 if (!match) return { };
413
414 return match[1].split(separator || '&').inject({ }, function(hash, pair) {
415 if ((pair = pair.split('='))[0]) {
416 var key = decodeURIComponent(pair.shift());
417 var value = pair.length > 1 ? pair.join('=') : pair[0];
418 if (value != undefined) value = decodeURIComponent(value);
419
420 if (key in hash) {
421 if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
422 hash[key].push(value);
423 }
424 else hash[key] = value;
425 }
426 return hash;
427 });
428 },
429
430 toArray: function() {
431 return this.split('');
432 },
433
434 succ: function() {
435 return this.slice(0, this.length - 1) +
436 String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
437 },
438
439 times: function(count) {
440 return count < 1 ? '' : new Array(count + 1).join(this);
441 },
442
443 camelize: function() {
444 var parts = this.split('-'), len = parts.length;
445 if (len == 1) return parts[0];
446
447 var camelized = this.charAt(0) == '-'
448 ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
449 : parts[0];
450
451 for (var i = 1; i < len; i++)
452 camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);
453
454 return camelized;
455 },
456
457 capitalize: function() {
458 return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
459 },
460
461 underscore: function() {
462 return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
463 },
464
465 dasherize: function() {
466 return this.gsub(/_/,'-');
467 },
468
469 inspect: function(useDoubleQuotes) {
470 var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
471 var character = String.specialChar[match[0]];
472 return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
473 });
474 if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
475 return "'" + escapedString.replace(/'/g, '\\\'') + "'";
476 },
477
478 toJSON: function() {
479 return this.inspect(true);
480 },
481
482 unfilterJSON: function(filter) {
483 return this.sub(filter || Prototype.JSONFilter, '#{1}');
484 },
485
486 isJSON: function() {
487 var str = this;
488 if (str.blank()) return false;
489 str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
490 return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
491 },
492
493 evalJSON: function(sanitize) {
494 var json = this.unfilterJSON();
495 try {
496 if (!sanitize || json.isJSON()) return eval('(' + json + ')');
497 } catch (e) { }
498 throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
499 },
500
501 include: function(pattern) {
502 return this.indexOf(pattern) > -1;
503 },
504
505 startsWith: function(pattern) {
506 return this.indexOf(pattern) === 0;
507 },
508
509 endsWith: function(pattern) {
510 var d = this.length - pattern.length;
511 return d >= 0 && this.lastIndexOf(pattern) === d;
512 },
513
514 empty: function() {
515 return this == '';
516 },
517
518 blank: function() {
519 return /^\s*$/.test(this);
520 },
521
522 interpolate: function(object, pattern) {
523 return new Template(this, pattern).evaluate(object);
524 }
525});
526
527if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
528 escapeHTML: function() {
529 return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
530 },
531 unescapeHTML: function() {
532 return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
533 }
534});
535
536String.prototype.gsub.prepareReplacement = function(replacement) {
537 if (Object.isFunction(replacement)) return replacement;
538 var template = new Template(replacement);
539 return function(match) { return template.evaluate(match) };
540};
541
542String.prototype.parseQuery = String.prototype.toQueryParams;
543
544Object.extend(String.prototype.escapeHTML, {
545 div: document.createElement('div'),
546 text: document.createTextNode('')
547});
548
549with (String.prototype.escapeHTML) div.appendChild(text);
550
551var Template = Class.create({
552 initialize: function(template, pattern) {
553 this.template = template.toString();
554 this.pattern = pattern || Template.Pattern;
555 },
556
557 evaluate: function(object) {
558 if (Object.isFunction(object.toTemplateReplacements))
559 object = object.toTemplateReplacements();
560
561 return this.template.gsub(this.pattern, function(match) {
562 if (object == null) return '';
563
564 var before = match[1] || '';
565 if (before == '\\') return match[2];
566
567 var ctx = object, expr = match[3];
568 var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
569 match = pattern.exec(expr);
570 if (match == null) return before;
571
572 while (match != null) {
573 var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
574 ctx = ctx[comp];
575 if (null == ctx || '' == match[3]) break;
576 expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
577 match = pattern.exec(expr);
578 }
579
580 return before + String.interpret(ctx);
581 }.bind(this));
582 }
583});
584Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
585
586var $break = { };
587
588var Enumerable = {
589 each: function(iterator, context) {
590 var index = 0;
591 iterator = iterator.bind(context);
592 try {
593 this._each(function(value) {
594 iterator(value, index++);
595 });
596 } catch (e) {
597 if (e != $break) throw e;
598 }
599 return this;
600 },
601
602 eachSlice: function(number, iterator, context) {
603 iterator = iterator ? iterator.bind(context) : Prototype.K;
604 var index = -number, slices = [], array = this.toArray();
605 while ((index += number) < array.length)
606 slices.push(array.slice(index, index+number));
607 return slices.collect(iterator, context);
608 },
609
610 all: function(iterator, context) {
611 iterator = iterator ? iterator.bind(context) : Prototype.K;
612 var result = true;
613 this.each(function(value, index) {
614 result = result && !!iterator(value, index);
615 if (!result) throw $break;
616 });
617 return result;
618 },
619
620 any: function(iterator, context) {
621 iterator = iterator ? iterator.bind(context) : Prototype.K;
622 var result = false;
623 this.each(function(value, index) {
624 if (result = !!iterator(value, index))
625 throw $break;
626 });
627 return result;
628 },
629
630 collect: function(iterator, context) {
631 iterator = iterator ? iterator.bind(context) : Prototype.K;
632 var results = [];
633 this.each(function(value, index) {
634 results.push(iterator(value, index));
635 });
636 return results;
637 },
638
639 detect: function(iterator, context) {
640 iterator = iterator.bind(context);
641 var result;
642 this.each(function(value, index) {
643 if (iterator(value, index)) {
644 result = value;
645 throw $break;
646 }
647 });
648 return result;
649 },
650
651 findAll: function(iterator, context) {
652 iterator = iterator.bind(context);
653 var results = [];
654 this.each(function(value, index) {
655 if (iterator(value, index))
656 results.push(value);
657 });
658 return results;
659 },
660
661 grep: function(filter, iterator, context) {
662 iterator = iterator ? iterator.bind(context) : Prototype.K;
663 var results = [];
664
665 if (Object.isString(filter))
666 filter = new RegExp(filter);
667
668 this.each(function(value, index) {
669 if (filter.match(value))
670 results.push(iterator(value, index));
671 });
672 return results;
673 },
674
675 include: function(object) {
676 if (Object.isFunction(this.indexOf))
677 if (this.indexOf(object) != -1) return true;
678
679 var found = false;
680 this.each(function(value) {
681 if (value == object) {
682 found = true;
683 throw $break;
684 }
685 });
686 return found;
687 },
688
689 inGroupsOf: function(number, fillWith) {
690 fillWith = Object.isUndefined(fillWith) ? null : fillWith;
691 return this.eachSlice(number, function(slice) {
692 while(slice.length < number) slice.push(fillWith);
693 return slice;
694 });
695 },
696
697 inject: function(memo, iterator, context) {
698 iterator = iterator.bind(context);
699 this.each(function(value, index) {
700 memo = iterator(memo, value, index);
701 });
702 return memo;
703 },
704
705 invoke: function(method) {
706 var args = $A(arguments).slice(1);
707 return this.map(function(value) {
708 return value[method].apply(value, args);
709 });
710 },
711
712 max: function(iterator, context) {
713 iterator = iterator ? iterator.bind(context) : Prototype.K;
714 var result;
715 this.each(function(value, index) {
716 value = iterator(value, index);
717 if (result == null || value >= result)
718 result = value;
719 });
720 return result;
721 },
722
723 min: function(iterator, context) {
724 iterator = iterator ? iterator.bind(context) : Prototype.K;
725 var result;
726 this.each(function(value, index) {
727 value = iterator(value, index);
728 if (result == null || value < result)
729 result = value;
730 });
731 return result;
732 },
733
734 partition: function(iterator, context) {
735 iterator = iterator ? iterator.bind(context) : Prototype.K;
736 var trues = [], falses = [];
737 this.each(function(value, index) {
738 (iterator(value, index) ?
739 trues : falses).push(value);
740 });
741 return [trues, falses];
742 },
743
744 pluck: function(property) {
745 var results = [];
746 this.each(function(value) {
747 results.push(value[property]);
748 });
749 return results;
750 },
751
752 reject: function(iterator, context) {
753 iterator = iterator.bind(context);
754 var results = [];
755 this.each(function(value, index) {
756 if (!iterator(value, index))
757 results.push(value);
758 });
759 return results;
760 },
761
762 sortBy: function(iterator, context) {
763 iterator = iterator.bind(context);
764 return this.map(function(value, index) {
765 return {value: value, criteria: iterator(value, index)};
766 }).sort(function(left, right) {
767 var a = left.criteria, b = right.criteria;
768 return a < b ? -1 : a > b ? 1 : 0;
769 }).pluck('value');
770 },
771
772 toArray: function() {
773 return this.map();
774 },
775
776 zip: function() {
777 var iterator = Prototype.K, args = $A(arguments);
778 if (Object.isFunction(args.last()))
779 iterator = args.pop();
780
781 var collections = [this].concat(args).map($A);
782 return this.map(function(value, index) {
783 return iterator(collections.pluck(index));
784 });
785 },
786
787 size: function() {
788 return this.toArray().length;
789 },
790
791 inspect: function() {
792 return '#<Enumerable:' + this.toArray().inspect() + '>';
793 }
794};
795
796Object.extend(Enumerable, {
797 map: Enumerable.collect,
798 find: Enumerable.detect,
799 select: Enumerable.findAll,
800 filter: Enumerable.findAll,
801 member: Enumerable.include,
802 entries: Enumerable.toArray,
803 every: Enumerable.all,
804 some: Enumerable.any
805});
806function $A(iterable) {
807 if (!iterable) return [];
808 if (iterable.toArray) return iterable.toArray();
809 var length = iterable.length, results = new Array(length);
810 while (length--) results[length] = iterable[length];
811 return results;
812}
813
814if (Prototype.Browser.WebKit) {
815 function $A(iterable) {
816 if (!iterable) return [];
817 if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
818 iterable.toArray) return iterable.toArray();
819 var length = iterable.length, results = new Array(length);
820 while (length--) results[length] = iterable[length];
821 return results;
822 }
823}
824
825Array.from = $A;
826
827Object.extend(Array.prototype, Enumerable);
828
829if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;
830
831Object.extend(Array.prototype, {
832 _each: function(iterator) {
833 for (var i = 0, length = this.length; i < length; i++)
834 iterator(this[i]);
835 },
836
837 clear: function() {
838 this.length = 0;
839 return this;
840 },
841
842 first: function() {
843 return this[0];
844 },
845
846 last: function() {
847 return this[this.length - 1];
848 },
849
850 compact: function() {
851 return this.select(function(value) {
852 return value != null;
853 });
854 },
855
856 flatten: function() {
857 return this.inject([], function(array, value) {
858 return array.concat(Object.isArray(value) ?
859 value.flatten() : [value]);
860 });
861 },
862
863 without: function() {
864 var values = $A(arguments);
865 return this.select(function(value) {
866 return !values.include(value);
867 });
868 },
869
870 reverse: function(inline) {
871 return (inline !== false ? this : this.toArray())._reverse();
872 },
873
874 reduce: function() {
875 return this.length > 1 ? this : this[0];
876 },
877
878 uniq: function(sorted) {
879 return this.inject([], function(array, value, index) {
880 if (0 == index || (sorted ? array.last() != value : !array.include(value)))
881 array.push(value);
882 return array;
883 });
884 },
885
886 intersect: function(array) {
887 return this.uniq().findAll(function(item) {
888 return array.detect(function(value) { return item === value });
889 });
890 },
891
892 clone: function() {
893 return [].concat(this);
894 },
895
896 size: function() {
897 return this.length;
898 },
899
900 inspect: function() {
901 return '[' + this.map(Object.inspect).join(', ') + ']';
902 },
903
904 toJSON: function() {
905 var results = [];
906 this.each(function(object) {
907 var value = Object.toJSON(object);
908 if (!Object.isUndefined(value)) results.push(value);
909 });
910 return '[' + results.join(', ') + ']';
911 }
912});
913
914// use native browser JS 1.6 implementation if available
915if (Object.isFunction(Array.prototype.forEach))
916 Array.prototype._each = Array.prototype.forEach;
917
918if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
919 i || (i = 0);
920 var length = this.length;
921 if (i < 0) i = length + i;
922 for (; i < length; i++)
923 if (this[i] === item) return i;
924 return -1;
925};
926
927if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
928 i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
929 var n = this.slice(0, i).reverse().indexOf(item);
930 return (n < 0) ? n : i - n - 1;
931};
932
933Array.prototype.toArray = Array.prototype.clone;
934
935function $w(string) {
936 if (!Object.isString(string)) return [];
937 string = string.strip();
938 return string ? string.split(/\s+/) : [];
939}
940
941if (Prototype.Browser.Opera){
942 Array.prototype.concat = function() {
943 var array = [];
944 for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
945 for (var i = 0, length = arguments.length; i < length; i++) {
946 if (Object.isArray(arguments[i])) {
947 for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
948 array.push(arguments[i][j]);
949 } else {
950 array.push(arguments[i]);
951 }
952 }
953 return array;
954 };
955}
956Object.extend(Number.prototype, {
957 toColorPart: function() {
958 return this.toPaddedString(2, 16);
959 },
960
961 succ: function() {
962 return this + 1;
963 },
964
965 times: function(iterator) {
966 $R(0, this, true).each(iterator);
967 return this;
968 },
969
970 toPaddedString: function(length, radix) {
971 var string = this.toString(radix || 10);
972 return '0'.times(length - string.length) + string;
973 },
974
975 toJSON: function() {
976 return isFinite(this) ? this.toString() : 'null';
977 }
978});
979
980$w('abs round ceil floor').each(function(method){
981 Number.prototype[method] = Math[method].methodize();
982});
983function $H(object) {
984 return new Hash(object);
985};
986
987var Hash = Class.create(Enumerable, (function() {
988
989 function toQueryPair(key, value) {
990 if (Object.isUndefined(value)) return key;
991 return key + '=' + encodeURIComponent(String.interpret(value));
992 }
993
994 return {
995 initialize: function(object) {
996 this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
997 },
998
999 _each: function(iterator) {
1000 for (var key in this._object) {
1001 var value = this._object[key], pair = [key, value];
1002 pair.key = key;
1003 pair.value = value;
1004 iterator(pair);
1005 }
1006 },
1007
1008 set: function(key, value) {
1009 return this._object[key] = value;
1010 },
1011
1012 get: function(key) {
1013 return this._object[key];
1014 },
1015
1016 unset: function(key) {
1017 var value = this._object[key];
1018 delete this._object[key];
1019 return value;
1020 },
1021
1022 toObject: function() {
1023 return Object.clone(this._object);
1024 },
1025
1026 keys: function() {
1027 return this.pluck('key');
1028 },
1029
1030 values: function() {
1031 return this.pluck('value');
1032 },
1033
1034 index: function(value) {
1035 var match = this.detect(function(pair) {
1036 return pair.value === value;
1037 });
1038 return match && match.key;
1039 },
1040
1041 merge: function(object) {
1042 return this.clone().update(object);
1043 },
1044
1045 update: function(object) {
1046 return new Hash(object).inject(this, function(result, pair) {
1047 result.set(pair.key, pair.value);
1048 return result;
1049 });
1050 },
1051
1052 toQueryString: function() {
1053 return this.map(function(pair) {
1054 var key = encodeURIComponent(pair.key), values = pair.value;
1055
1056 if (values && typeof values == 'object') {
1057 if (Object.isArray(values))
1058 return values.map(toQueryPair.curry(key)).join('&');
1059 }
1060 return toQueryPair(key, values);
1061 }).join('&');
1062 },
1063
1064 inspect: function() {
1065 return '#<Hash:{' + this.map(function(pair) {
1066 return pair.map(Object.inspect).join(': ');
1067 }).join(', ') + '}>';
1068 },
1069
1070 toJSON: function() {
1071 return Object.toJSON(this.toObject());
1072 },
1073
1074 clone: function() {
1075 return new Hash(this);
1076 }
1077 }
1078})());
1079
1080Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
1081Hash.from = $H;
1082var ObjectRange = Class.create(Enumerable, {
1083 initialize: function(start, end, exclusive) {
1084 this.start = start;
1085 this.end = end;
1086 this.exclusive = exclusive;
1087 },
1088
1089 _each: function(iterator) {
1090 var value = this.start;
1091 while (this.include(value)) {
1092 iterator(value);
1093 value = value.succ();
1094 }
1095 },
1096
1097 include: function(value) {
1098 if (value < this.start)
1099 return false;
1100 if (this.exclusive)
1101 return value < this.end;
1102 return value <= this.end;
1103 }
1104});
1105
1106var $R = function(start, end, exclusive) {
1107 return new ObjectRange(start, end, exclusive);
1108};
1109
1110var Ajax = {
1111 getTransport: function() {
1112 return Try.these(
1113 function() {return new XMLHttpRequest()},
1114 function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1115 function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1116 ) || false;
1117 },
1118
1119 activeRequestCount: 0
1120};
1121
1122Ajax.Responders = {
1123 responders: [],
1124
1125 _each: function(iterator) {
1126 this.responders._each(iterator);
1127 },
1128
1129 register: function(responder) {
1130 if (!this.include(responder))
1131 this.responders.push(responder);
1132 },
1133
1134 unregister: function(responder) {
1135 this.responders = this.responders.without(responder);
1136 },
1137
1138 dispatch: function(callback, request, transport, json) {
1139 this.each(function(responder) {
1140 if (Object.isFunction(responder[callback])) {
1141 try {
1142 responder[callback].apply(responder, [request, transport, json]);
1143 } catch (e) { }
1144 }
1145 });
1146 }
1147};
1148
1149Object.extend(Ajax.Responders, Enumerable);
1150
1151Ajax.Responders.register({
1152 onCreate: function() { Ajax.activeRequestCount++ },
1153 onComplete: function() { Ajax.activeRequestCount-- }
1154});
1155
1156Ajax.Base = Class.create({
1157 initialize: function(options) {
1158 this.options = {
1159 method: 'post',
1160 asynchronous: true,
1161 contentType: 'application/x-www-form-urlencoded',
1162 encoding: 'UTF-8',
1163 parameters: '',
1164 evalJSON: true,
1165 evalJS: true
1166 };
1167 Object.extend(this.options, options || { });
1168
1169 this.options.method = this.options.method.toLowerCase();
1170
1171 if (Object.isString(this.options.parameters))
1172 this.options.parameters = this.options.parameters.toQueryParams();
1173 else if (Object.isHash(this.options.parameters))
1174 this.options.parameters = this.options.parameters.toObject();
1175 }
1176});
1177
1178Ajax.Request = Class.create(Ajax.Base, {
1179 _complete: false,
1180
1181 initialize: function($super, url, options) {
1182 $super(options);
1183 this.transport = Ajax.getTransport();
1184 this.request(url);
1185 },
1186
1187 request: function(url) {
1188 this.url = url;
1189 this.method = this.options.method;
1190 var params = Object.clone(this.options.parameters);
1191
1192 if (!['get', 'post'].include(this.method)) {
1193 // simulate other verbs over post
1194 params['_method'] = this.method;
1195 this.method = 'post';
1196 }
1197
1198 this.parameters = params;
1199
1200 if (params = Object.toQueryString(params)) {
1201 // when GET, append parameters to URL
1202 if (this.method == 'get')
1203 this.url += (this.url.include('?') ? '&' : '?') + params;
1204 else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
1205 params += '&_=';
1206 }
1207
1208 try {
1209 var response = new Ajax.Response(this);
1210 if (this.options.onCreate) this.options.onCreate(response);
1211 Ajax.Responders.dispatch('onCreate', this, response);
1212
1213 this.transport.open(this.method.toUpperCase(), this.url,
1214 this.options.asynchronous);
1215
1216 if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1217
1218 this.transport.onreadystatechange = this.onStateChange.bind(this);
1219 this.setRequestHeaders();
1220
1221 this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1222 this.transport.send(this.body);
1223
1224 /* Force Firefox to handle ready state 4 for synchronous requests */
1225 if (!this.options.asynchronous && this.transport.overrideMimeType)
1226 this.onStateChange();
1227
1228 }
1229 catch (e) {
1230 this.dispatchException(e);
1231 }
1232 },
1233
1234 onStateChange: function() {
1235 var readyState = this.transport.readyState;
1236 if (readyState > 1 && !((readyState == 4) && this._complete))
1237 this.respondToReadyState(this.transport.readyState);
1238 },
1239
1240 setRequestHeaders: function() {
1241 var headers = {
1242 'X-Requested-With': 'XMLHttpRequest',
1243 'X-Prototype-Version': Prototype.Version,
1244 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1245 };
1246
1247 if (this.method == 'post') {
1248 headers['Content-type'] = this.options.contentType +
1249 (this.options.encoding ? '; charset=' + this.options.encoding : '');
1250
1251 /* Force "Connection: close" for older Mozilla browsers to work
1252 * around a bug where XMLHttpRequest sends an incorrect
1253 * Content-length header. See Mozilla Bugzilla #246651.
1254 */
1255 if (this.transport.overrideMimeType &&
1256 (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1257 headers['Connection'] = 'close';
1258 }
1259
1260 // user-defined headers
1261 if (typeof this.options.requestHeaders == 'object') {
1262 var extras = this.options.requestHeaders;
1263
1264 if (Object.isFunction(extras.push))
1265 for (var i = 0, length = extras.length; i < length; i += 2)
1266 headers[extras[i]] = extras[i+1];
1267 else
1268 $H(extras).each(function(pair) { headers[pair.key] = pair.value });
1269 }
1270
1271 for (var name in headers)
1272 this.transport.setRequestHeader(name, headers[name]);
1273 },
1274
1275 success: function() {
1276 var status = this.getStatus();
1277 return !status || (status >= 200 && status < 300);
1278 },
1279
1280 getStatus: function() {
1281 try {
1282 return this.transport.status || 0;
1283 } catch (e) { return 0 }
1284 },
1285
1286 respondToReadyState: function(readyState) {
1287 var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1288
1289 if (state == 'Complete') {
1290 try {
1291 this._complete = true;
1292 (this.options['on' + response.status]
1293 || this.options['on' + (this.success() ? 'Success' : 'Failure')]
1294 || Prototype.emptyFunction)(response, response.headerJSON);
1295 } catch (e) {
1296 this.dispatchException(e);
1297 }
1298
1299 var contentType = response.getHeader('Content-type');
1300 if (this.options.evalJS == 'force'
1301 || (this.options.evalJS && contentType
1302 && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1303 this.evalResponse();
1304 }
1305
1306 try {
1307 (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1308 Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1309 } catch (e) {
1310 this.dispatchException(e);
1311 }
1312
1313 if (state == 'Complete') {
1314 // avoid memory leak in MSIE: clean up
1315 this.transport.onreadystatechange = Prototype.emptyFunction;
1316 }
1317 },
1318
1319 getHeader: function(name) {
1320 try {
1321 return this.transport.getResponseHeader(name);
1322 } catch (e) { return null }
1323 },
1324
1325 evalResponse: function() {
1326 try {
1327 return eval((this.transport.responseText || '').unfilterJSON());
1328 } catch (e) {
1329 this.dispatchException(e);
1330 }
1331 },
1332
1333 dispatchException: function(exception) {
1334 (this.options.onException || Prototype.emptyFunction)(this, exception);
1335 Ajax.Responders.dispatch('onException', this, exception);
1336 }
1337});
1338
1339Ajax.Request.Events =
1340 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1341
1342Ajax.Response = Class.create({
1343 initialize: function(request){
1344 this.request = request;
1345 var transport = this.transport = request.transport,
1346 readyState = this.readyState = transport.readyState;
1347
1348 if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1349 this.status = this.getStatus();
1350 this.statusText = this.getStatusText();
1351 this.responseText = String.interpret(transport.responseText);
1352 this.headerJSON = this._getHeaderJSON();
1353 }
1354
1355 if(readyState == 4) {
1356 var xml = transport.responseXML;
1357 this.responseXML = Object.isUndefined(xml) ? null : xml;
1358 this.responseJSON = this._getResponseJSON();
1359 }
1360 },
1361
1362 status: 0,
1363 statusText: '',
1364
1365 getStatus: Ajax.Request.prototype.getStatus,
1366
1367 getStatusText: function() {
1368 try {
1369 return this.transport.statusText || '';
1370 } catch (e) { return '' }
1371 },
1372
1373 getHeader: Ajax.Request.prototype.getHeader,
1374
1375 getAllHeaders: function() {
1376 try {
1377 return this.getAllResponseHeaders();
1378 } catch (e) { return null }
1379 },
1380
1381 getResponseHeader: function(name) {
1382 return this.transport.getResponseHeader(name);
1383 },
1384
1385 getAllResponseHeaders: function() {
1386 return this.transport.getAllResponseHeaders();
1387 },
1388
1389 _getHeaderJSON: function() {
1390 var json = this.getHeader('X-JSON');
1391 if (!json) return null;
1392 json = decodeURIComponent(escape(json));
1393 try {
1394 return json.evalJSON(this.request.options.sanitizeJSON);
1395 } catch (e) {
1396 this.request.dispatchException(e);
1397 }
1398 },
1399
1400 _getResponseJSON: function() {
1401 var options = this.request.options;
1402 if (!options.evalJSON || (options.evalJSON != 'force' &&
1403 !(this.getHeader('Content-type') || '').include('application/json')) ||
1404 this.responseText.blank())
1405 return null;
1406 try {
1407 return this.responseText.evalJSON(options.sanitizeJSON);
1408 } catch (e) {
1409 this.request.dispatchException(e);
1410 }
1411 }
1412});
1413
1414Ajax.Updater = Class.create(Ajax.Request, {
1415 initialize: function($super, container, url, options) {
1416 this.container = {
1417 success: (container.success || container),
1418 failure: (container.failure || (container.success ? null : container))
1419 };
1420
1421 options = Object.clone(options);
1422 var onComplete = options.onComplete;
1423 options.onComplete = (function(response, json) {
1424 this.updateContent(response.responseText);
1425 if (Object.isFunction(onComplete)) onComplete(response, json);
1426 }).bind(this);
1427
1428 $super(url, options);
1429 },
1430
1431 updateContent: function(responseText) {
1432 var receiver = this.container[this.success() ? 'success' : 'failure'],
1433 options = this.options;
1434
1435 if (!options.evalScripts) responseText = responseText.stripScripts();
1436
1437 if (receiver = $(receiver)) {
1438 if (options.insertion) {
1439 if (Object.isString(options.insertion)) {
1440 var insertion = { }; insertion[options.insertion] = responseText;
1441 receiver.insert(insertion);
1442 }
1443 else options.insertion(receiver, responseText);
1444 }
1445 else receiver.update(responseText);
1446 }
1447 }
1448});
1449
1450Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1451 initialize: function($super, container, url, options) {
1452 $super(options);
1453 this.onComplete = this.options.onComplete;
1454
1455 this.frequency = (this.options.frequency || 2);
1456 this.decay = (this.options.decay || 1);
1457
1458 this.updater = { };
1459 this.container = container;
1460 this.url = url;
1461
1462 this.start();
1463 },
1464
1465 start: function() {
1466 this.options.onComplete = this.updateComplete.bind(this);
1467 this.onTimerEvent();
1468 },
1469
1470 stop: function() {
1471 this.updater.options.onComplete = undefined;
1472 clearTimeout(this.timer);
1473 (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1474 },
1475
1476 updateComplete: function(response) {
1477 if (this.options.decay) {
1478 this.decay = (response.responseText == this.lastText ?
1479 this.decay * this.options.decay : 1);
1480
1481 this.lastText = response.responseText;
1482 }
1483 this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1484 },
1485
1486 onTimerEvent: function() {
1487 this.updater = new Ajax.Updater(this.container, this.url, this.options);
1488 }
1489});
1490function $(element) {
1491 if (arguments.length > 1) {
1492 for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1493 elements.push($(arguments[i]));
1494 return elements;
1495 }
1496 if (Object.isString(element))
1497 element = document.getElementById(element);
1498 return Element.extend(element);
1499}
1500
1501if (Prototype.BrowserFeatures.XPath) {
1502 document._getElementsByXPath = function(expression, parentElement) {
1503 var results = [];
1504 var query = document.evaluate(expression, $(parentElement) || document,
1505 null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1506 for (var i = 0, length = query.snapshotLength; i < length; i++)
1507 results.push(Element.extend(query.snapshotItem(i)));
1508 return results;
1509 };
1510}
1511
1512/*--------------------------------------------------------------------------*/
1513
1514if (!window.Node) var Node = { };
1515
1516if (!Node.ELEMENT_NODE) {
1517 // DOM level 2 ECMAScript Language Binding
1518 Object.extend(Node, {
1519 ELEMENT_NODE: 1,
1520 ATTRIBUTE_NODE: 2,
1521 TEXT_NODE: 3,
1522 CDATA_SECTION_NODE: 4,
1523 ENTITY_REFERENCE_NODE: 5,
1524 ENTITY_NODE: 6,
1525 PROCESSING_INSTRUCTION_NODE: 7,
1526 COMMENT_NODE: 8,
1527 DOCUMENT_NODE: 9,
1528 DOCUMENT_TYPE_NODE: 10,
1529 DOCUMENT_FRAGMENT_NODE: 11,
1530 NOTATION_NODE: 12
1531 });
1532}
1533
1534(function() {
1535 var element = this.Element;
1536 this.Element = function(tagName, attributes) {
1537 attributes = attributes || { };
1538 tagName = tagName.toLowerCase();
1539 var cache = Element.cache;
1540 if (Prototype.Browser.IE && attributes.name) {
1541 tagName = '<' + tagName + ' name="' + attributes.name + '">';
1542 delete attributes.name;
1543 return Element.writeAttribute(document.createElement(tagName), attributes);
1544 }
1545 if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1546 return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
1547 };
1548 Object.extend(this.Element, element || { });
1549}).call(window);
1550
1551Element.cache = { };
1552
1553Element.Methods = {
1554 visible: function(element) {
1555 return $(element).style.display != 'none';
1556 },
1557
1558 toggle: function(element) {
1559 element = $(element);
1560 Element[Element.visible(element) ? 'hide' : 'show'](element);
1561 return element;
1562 },
1563
1564 hide: function(element) {
1565 $(element).style.display = 'none';
1566 return element;
1567 },
1568
1569 show: function(element) {
1570 $(element).style.display = '';
1571 return element;
1572 },
1573
1574 remove: function(element) {
1575 element = $(element);
1576 element.parentNode.removeChild(element);
1577 return element;
1578 },
1579
1580 update: function(element, content) {
1581 element = $(element);
1582 if (content && content.toElement) content = content.toElement();
1583 if (Object.isElement(content)) return element.update().insert(content);
1584 content = Object.toHTML(content);
1585 element.innerHTML = content.stripScripts();
1586 content.evalScripts.bind(content).defer();
1587 return element;
1588 },
1589
1590 replace: function(element, content) {
1591 element = $(element);
1592 if (content && content.toElement) content = content.toElement();
1593 else if (!Object.isElement(content)) {
1594 content = Object.toHTML(content);
1595 var range = element.ownerDocument.createRange();
1596 range.selectNode(element);
1597 content.evalScripts.bind(content).defer();
1598 content = range.createContextualFragment(content.stripScripts());
1599 }
1600 element.parentNode.replaceChild(content, element);
1601 return element;
1602 },
1603
1604 insert: function(element, insertions) {
1605 element = $(element);
1606
1607 if (Object.isString(insertions) || Object.isNumber(insertions) ||
1608 Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
1609 insertions = {bottom:insertions};
1610
1611 var content, t, range;
1612
1613 for (position in insertions) {
1614 content = insertions[position];
1615 position = position.toLowerCase();
1616 t = Element._insertionTranslations[position];
1617
1618 if (content && content.toElement) content = content.toElement();
1619 if (Object.isElement(content)) {
1620 t.insert(element, content);
1621 continue;
1622 }
1623
1624 content = Object.toHTML(content);
1625
1626 range = element.ownerDocument.createRange();
1627 t.initializeRange(element, range);
1628 t.insert(element, range.createContextualFragment(content.stripScripts()));
1629
1630 content.evalScripts.bind(content).defer();
1631 }
1632
1633 return element;
1634 },
1635
1636 wrap: function(element, wrapper, attributes) {
1637 element = $(element);
1638 if (Object.isElement(wrapper))
1639 $(wrapper).writeAttribute(attributes || { });
1640 else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
1641 else wrapper = new Element('div', wrapper);
1642 if (element.parentNode)
1643 element.parentNode.replaceChild(wrapper, element);
1644 wrapper.appendChild(element);
1645 return wrapper;
1646 },
1647
1648 inspect: function(element) {
1649 element = $(element);
1650 var result = '<' + element.tagName.toLowerCase();
1651 $H({'id': 'id', 'className': 'class'}).each(function(pair) {
1652 var property = pair.first(), attribute = pair.last();
1653 var value = (element[property] || '').toString();
1654 if (value) result += ' ' + attribute + '=' + value.inspect(true);
1655 });
1656 return result + '>';
1657 },
1658
1659 recursivelyCollect: function(element, property) {
1660 element = $(element);
1661 var elements = [];
1662 while (element = element[property])
1663 if (element.nodeType == 1)
1664 elements.push(Element.extend(element));
1665 return elements;
1666 },
1667
1668 ancestors: function(element) {
1669 return $(element).recursivelyCollect('parentNode');
1670 },
1671
1672 descendants: function(element) {
1673 return $(element).getElementsBySelector("*");
1674 },
1675
1676 firstDescendant: function(element) {
1677 element = $(element).firstChild;
1678 while (element && element.nodeType != 1) element = element.nextSibling;
1679 return $(element);
1680 },
1681
1682 immediateDescendants: function(element) {
1683 if (!(element = $(element).firstChild)) return [];
1684 while (element && element.nodeType != 1) element = element.nextSibling;
1685 if (element) return [element].concat($(element).nextSiblings());
1686 return [];
1687 },
1688
1689 previousSiblings: function(element) {
1690 return $(element).recursivelyCollect('previousSibling');
1691 },
1692
1693 nextSiblings: function(element) {
1694 return $(element).recursivelyCollect('nextSibling');
1695 },
1696
1697 siblings: function(element) {
1698 element = $(element);
1699 return element.previousSiblings().reverse().concat(element.nextSiblings());
1700 },
1701
1702 match: function(element, selector) {
1703 if (Object.isString(selector))
1704 selector = new Selector(selector);
1705 return selector.match($(element));
1706 },
1707
1708 up: function(element, expression, index) {
1709 element = $(element);
1710 if (arguments.length == 1) return $(element.parentNode);
1711 var ancestors = element.ancestors();
1712 return expression ? Selector.findElement(ancestors, expression, index) :
1713 ancestors[index || 0];
1714 },
1715
1716 down: function(element, expression, index) {
1717 element = $(element);
1718 if (arguments.length == 1) return element.firstDescendant();
1719 var descendants = element.descendants();
1720 return expression ? Selector.findElement(descendants, expression, index) :
1721 descendants[index || 0];
1722 },
1723
1724 previous: function(element, expression, index) {
1725 element = $(element);
1726 if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
1727 var previousSiblings = element.previousSiblings();
1728 return expression ? Selector.findElement(previousSiblings, expression, index) :
1729 previousSiblings[index || 0];
1730 },
1731
1732 next: function(element, expression, index) {
1733 element = $(element);
1734 if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
1735 var nextSiblings = element.nextSiblings();
1736 return expression ? Selector.findElement(nextSiblings, expression, index) :
1737 nextSiblings[index || 0];
1738 },
1739
1740 select: function() {
1741 var args = $A(arguments), element = $(args.shift());
1742 return Selector.findChildElements(element, args);
1743 },
1744
1745 adjacent: function() {
1746 var args = $A(arguments), element = $(args.shift());
1747 return Selector.findChildElements(element.parentNode, args).without(element);
1748 },
1749
1750 identify: function(element) {
1751 element = $(element);
1752 var id = element.readAttribute('id'), self = arguments.callee;
1753 if (id) return id;
1754 do { id = 'anonymous_element_' + self.counter++ } while ($(id));
1755 element.writeAttribute('id', id);
1756 return id;
1757 },
1758
1759 readAttribute: function(element, name) {
1760 element = $(element);
1761 if (Prototype.Browser.IE) {
1762 var t = Element._attributeTranslations.read;
1763 if (t.values[name]) return t.values[name](element, name);
1764 if (t.names[name]) name = t.names[name];
1765 if (name.include(':')) {
1766 return (!element.attributes || !element.attributes[name]) ? null :
1767 element.attributes[name].value;
1768 }
1769 }
1770 return element.getAttribute(name);
1771 },
1772
1773 writeAttribute: function(element, name, value) {
1774 element = $(element);
1775 var attributes = { }, t = Element._attributeTranslations.write;
1776
1777 if (typeof name == 'object') attributes = name;
1778 else attributes[name] = Object.isUndefined(value) ? true : value;
1779
1780 for (var attr in attributes) {
1781 name = t.names[attr] || attr;
1782 value = attributes[attr];
1783 if (t.values[attr]) name = t.values[attr](element, value);
1784 if (value === false || value === null)
1785 element.removeAttribute(name);
1786 else if (value === true)
1787 element.setAttribute(name, name);
1788 else element.setAttribute(name, value);
1789 }
1790 return element;
1791 },
1792
1793 getHeight: function(element) {
1794 return $(element).getDimensions().height;
1795 },
1796
1797 getWidth: function(element) {
1798 return $(element).getDimensions().width;
1799 },
1800
1801 classNames: function(element) {
1802 return new Element.ClassNames(element);
1803 },
1804
1805 hasClassName: function(element, className) {
1806 if (!(element = $(element))) return;
1807 var elementClassName = element.className;
1808 return (elementClassName.length > 0 && (elementClassName == className ||
1809 new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
1810 },
1811
1812 addClassName: function(element, className) {
1813 if (!(element = $(element))) return;
1814 if (!element.hasClassName(className))
1815 element.className += (element.className ? ' ' : '') + className;
1816 return element;
1817 },
1818
1819 removeClassName: function(element, className) {
1820 if (!(element = $(element))) return;
1821 element.className = element.className.replace(
1822 new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
1823 return element;
1824 },
1825
1826 toggleClassName: function(element, className) {
1827 if (!(element = $(element))) return;
1828 return element[element.hasClassName(className) ?
1829 'removeClassName' : 'addClassName'](className);
1830 },
1831
1832 // removes whitespace-only text node children
1833 cleanWhitespace: function(element) {
1834 element = $(element);
1835 var node = element.firstChild;
1836 while (node) {
1837 var nextNode = node.nextSibling;
1838 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
1839 element.removeChild(node);
1840 node = nextNode;
1841 }
1842 return element;
1843 },
1844
1845 empty: function(element) {
1846 return $(element).innerHTML.blank();
1847 },
1848
1849 descendantOf: function(element, ancestor) {
1850 element = $(element), ancestor = $(ancestor);
1851 var originalAncestor = ancestor;
1852
1853 if (element.compareDocumentPosition)
1854 return (element.compareDocumentPosition(ancestor) & 8) === 8;
1855
1856 if (element.sourceIndex && !Prototype.Browser.Opera) {
1857 var e = element.sourceIndex, a = ancestor.sourceIndex,
1858 nextAncestor = ancestor.nextSibling;
1859 if (!nextAncestor) {
1860 do { ancestor = ancestor.parentNode; }
1861 while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
1862 }
1863 if (nextAncestor) return (e > a && e < nextAncestor.sourceIndex);
1864 }
1865
1866 while (element = element.parentNode)
1867 if (element == originalAncestor) return true;
1868 return false;
1869 },
1870
1871 scrollTo: function(element) {
1872 element = $(element);
1873 var pos = element.cumulativeOffset();
1874 window.scrollTo(pos[0], pos[1]);
1875 return element;
1876 },
1877
1878 getStyle: function(element, style) {
1879 element = $(element);
1880 style = style == 'float' ? 'cssFloat' : style.camelize();
1881 var value = element.style[style];
1882 if (!value) {
1883 var css = document.defaultView.getComputedStyle(element, null);
1884 value = css ? css[style] : null;
1885 }
1886 if (style == 'opacity') return value ? parseFloat(value) : 1.0;
1887 return value == 'auto' ? null : value;
1888 },
1889
1890 getOpacity: function(element) {
1891 return $(element).getStyle('opacity');
1892 },
1893
1894 setStyle: function(element, styles) {
1895 element = $(element);
1896 var elementStyle = element.style, match;
1897 if (Object.isString(styles)) {
1898 element.style.cssText += ';' + styles;
1899 return styles.include('opacity') ?
1900 element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
1901 }
1902 for (var property in styles)
1903 if (property == 'opacity') element.setOpacity(styles[property]);
1904 else
1905 elementStyle[(property == 'float' || property == 'cssFloat') ?
1906 (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
1907 property] = styles[property];
1908
1909 return element;
1910 },
1911
1912 setOpacity: function(element, value) {
1913 element = $(element);
1914 element.style.opacity = (value == 1 || value === '') ? '' :
1915 (value < 0.00001) ? 0 : value;
1916 return element;
1917 },
1918
1919 getDimensions: function(element) {
1920 element = $(element);
1921 var display = $(element).getStyle('display');
1922 if (display != 'none' && display != null) // Safari bug
1923 return {width: element.offsetWidth, height: element.offsetHeight};
1924
1925 // All *Width and *Height properties give 0 on elements with display none,
1926 // so enable the element temporarily
1927 var els = element.style;
1928 var originalVisibility = els.visibility;
1929 var originalPosition = els.position;
1930 var originalDisplay = els.display;
1931 els.visibility = 'hidden';
1932 els.position = 'absolute';
1933 els.display = 'block';
1934 var originalWidth = element.clientWidth;
1935 var originalHeight = element.clientHeight;
1936 els.display = originalDisplay;
1937 els.position = originalPosition;
1938 els.visibility = originalVisibility;
1939 return {width: originalWidth, height: originalHeight};
1940 },
1941
1942 makePositioned: function(element) {
1943 element = $(element);
1944 var pos = Element.getStyle(element, 'position');
1945 if (pos == 'static' || !pos) {
1946 element._madePositioned = true;
1947 element.style.position = 'relative';
1948 // Opera returns the offset relative to the positioning context, when an
1949 // element is position relative but top and left have not been defined
1950 if (window.opera) {
1951 element.style.top = 0;
1952 element.style.left = 0;
1953 }
1954 }
1955 return element;
1956 },
1957
1958 undoPositioned: function(element) {
1959 element = $(element);
1960 if (element._madePositioned) {
1961 element._madePositioned = undefined;
1962 element.style.position =
1963 element.style.top =
1964 element.style.left =
1965 element.style.bottom =
1966 element.style.right = '';
1967 }
1968 return element;
1969 },
1970
1971 makeClipping: function(element) {
1972 element = $(element);
1973 if (element._overflow) return element;
1974 element._overflow = Element.getStyle(element, 'overflow') || 'auto';
1975 if (element._overflow !== 'hidden')
1976 element.style.overflow = 'hidden';
1977 return element;
1978 },
1979
1980 undoClipping: function(element) {
1981 element = $(element);
1982 if (!element._overflow) return element;
1983 element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
1984 element._overflow = null;
1985 return element;
1986 },
1987
1988 cumulativeOffset: function(element) {
1989 var valueT = 0, valueL = 0;
1990 do {
1991 valueT += element.offsetTop || 0;
1992 valueL += element.offsetLeft || 0;
1993 element = element.offsetParent;
1994 } while (element);
1995 return Element._returnOffset(valueL, valueT);
1996 },
1997
1998 positionedOffset: function(element) {
1999 var valueT = 0, valueL = 0;
2000 do {
2001 valueT += element.offsetTop || 0;
2002 valueL += element.offsetLeft || 0;
2003 element = element.offsetParent;
2004 if (element) {
2005 if (element.tagName == 'BODY') break;
2006 var p = Element.getStyle(element, 'position');
2007 if (p == 'relative' || p == 'absolute') break;
2008 }
2009 } while (element);
2010 return Element._returnOffset(valueL, valueT);
2011 },
2012
2013 absolutize: function(element) {
2014 element = $(element);
2015 if (element.getStyle('position') == 'absolute') return;
2016 // Position.prepare(); // To be done manually by Scripty when it needs it.
2017
2018 var offsets = element.positionedOffset();
2019 var top = offsets[1];
2020 var left = offsets[0];
2021 var width = element.clientWidth;
2022 var height = element.clientHeight;
2023
2024 element._originalLeft = left - parseFloat(element.style.left || 0);
2025 element._originalTop = top - parseFloat(element.style.top || 0);
2026 element._originalWidth = element.style.width;
2027 element._originalHeight = element.style.height;
2028
2029 element.style.position = 'absolute';
2030 element.style.top = top + 'px';
2031 element.style.left = left + 'px';
2032 element.style.width = width + 'px';
2033 element.style.height = height + 'px';
2034 return element;
2035 },
2036
2037 relativize: function(element) {
2038 element = $(element);
2039 if (element.getStyle('position') == 'relative') return;
2040 // Position.prepare(); // To be done manually by Scripty when it needs it.
2041
2042 element.style.position = 'relative';
2043 var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
2044 var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
2045
2046 element.style.top = top + 'px';
2047 element.style.left = left + 'px';
2048 element.style.height = element._originalHeight;
2049 element.style.width = element._originalWidth;
2050 return element;
2051 },
2052
2053 cumulativeScrollOffset: function(element) {
2054 var valueT = 0, valueL = 0;
2055 do {
2056 valueT += element.scrollTop || 0;
2057 valueL += element.scrollLeft || 0;
2058 element = element.parentNode;
2059 } while (element);
2060 return Element._returnOffset(valueL, valueT);
2061 },
2062
2063 getOffsetParent: function(element) {
2064 if (element.offsetParent) return $(element.offsetParent);
2065 if (element == document.body) return $(element);
2066
2067 while ((element = element.parentNode) && element != document.body)
2068 if (Element.getStyle(element, 'position') != 'static')
2069 return $(element);
2070
2071 return $(document.body);
2072 },
2073
2074 viewportOffset: function(forElement) {
2075 var valueT = 0, valueL = 0;
2076
2077 var element = forElement;
2078 do {
2079 valueT += element.offsetTop || 0;
2080 valueL += element.offsetLeft || 0;
2081
2082 // Safari fix
2083 if (element.offsetParent == document.body &&
2084 Element.getStyle(element, 'position') == 'absolute') break;
2085
2086 } while (element = element.offsetParent);
2087
2088 element = forElement;
2089 do {
2090 if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
2091 valueT -= element.scrollTop || 0;
2092 valueL -= element.scrollLeft || 0;
2093 }
2094 } while (element = element.parentNode);
2095
2096 return Element._returnOffset(valueL, valueT);
2097 },
2098
2099 clonePosition: function(element, source) {
2100 var options = Object.extend({
2101 setLeft: true,
2102 setTop: true,
2103 setWidth: true,
2104 setHeight: true,
2105 offsetTop: 0,
2106 offsetLeft: 0
2107 }, arguments[2] || { });
2108
2109 // find page position of source
2110 source = $(source);
2111 var p = source.viewportOffset();
2112
2113 // find coordinate system to use
2114 element = $(element);
2115 var delta = [0, 0];
2116 var parent = null;
2117 // delta [0,0] will do fine with position: fixed elements,
2118 // position:absolute needs offsetParent deltas
2119 if (Element.getStyle(element, 'position') == 'absolute') {
2120 parent = element.getOffsetParent();
2121 delta = parent.viewportOffset();
2122 }
2123
2124 // correct by body offsets (fixes Safari)
2125 if (parent == document.body) {
2126 delta[0] -= document.body.offsetLeft;
2127 delta[1] -= document.body.offsetTop;
2128 }
2129
2130 // set position
2131 if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
2132 if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
2133 if (options.setWidth) element.style.width = source.offsetWidth + 'px';
2134 if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2135 return element;
2136 }
2137};
2138
2139Element.Methods.identify.counter = 1;
2140
2141Object.extend(Element.Methods, {
2142 getElementsBySelector: Element.Methods.select,
2143 childElements: Element.Methods.immediateDescendants
2144});
2145
2146Element._attributeTranslations = {
2147 write: {
2148 names: {
2149 className: 'class',
2150 htmlFor: 'for'
2151 },
2152 values: { }
2153 }
2154};
2155
2156
2157if (!document.createRange || Prototype.Browser.Opera) {
2158 Element.Methods.insert = function(element, insertions) {
2159 element = $(element);
2160
2161 if (Object.isString(insertions) || Object.isNumber(insertions) ||
2162 Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
2163 insertions = { bottom: insertions };
2164
2165 var t = Element._insertionTranslations, content, position, pos, tagName;
2166
2167 for (position in insertions) {
2168 content = insertions[position];
2169 position = position.toLowerCase();
2170 pos = t[position];
2171
2172 if (content && content.toElement) content = content.toElement();
2173 if (Object.isElement(content)) {
2174 pos.insert(element, content);
2175 continue;
2176 }
2177
2178 content = Object.toHTML(content);
2179 tagName = ((position == 'before' || position == 'after')
2180 ? element.parentNode : element).tagName.toUpperCase();
2181
2182 if (t.tags[tagName]) {
2183 var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2184 if (position == 'top' || position == 'after') fragments.reverse();
2185 fragments.each(pos.insert.curry(element));
2186 }
2187 else element.insertAdjacentHTML(pos.adjacency, content.stripScripts());
2188
2189 content.evalScripts.bind(content).defer();
2190 }
2191
2192 return element;
2193 };
2194}
2195
2196if (Prototype.Browser.Opera) {
2197 Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2198 function(proceed, element, style) {
2199 switch (style) {
2200 case 'left': case 'top': case 'right': case 'bottom':
2201 if (proceed(element, 'position') === 'static') return null;
2202 case 'height': case 'width':
2203 // returns '0px' for hidden elements; we want it to return null
2204 if (!Element.visible(element)) return null;
2205
2206 // returns the border-box dimensions rather than the content-box
2207 // dimensions, so we subtract padding and borders from the value
2208 var dim = parseInt(proceed(element, style), 10);
2209
2210 if (dim !== element['offset' + style.capitalize()])
2211 return dim + 'px';
2212
2213 var properties;
2214 if (style === 'height') {
2215 properties = ['border-top-width', 'padding-top',
2216 'padding-bottom', 'border-bottom-width'];
2217 }
2218 else {
2219 properties = ['border-left-width', 'padding-left',
2220 'padding-right', 'border-right-width'];
2221 }
2222 return properties.inject(dim, function(memo, property) {
2223 var val = proceed(element, property);
2224 return val === null ? memo : memo - parseInt(val, 10);
2225 }) + 'px';
2226 default: return proceed(element, style);
2227 }
2228 }
2229 );
2230
2231 Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2232 function(proceed, element, attribute) {
2233 if (attribute === 'title') return element.title;
2234 return proceed(element, attribute);
2235 }
2236 );
2237}
2238
2239else if (Prototype.Browser.IE) {
2240 $w('positionedOffset getOffsetParent viewportOffset').each(function(method) {
2241 Element.Methods[method] = Element.Methods[method].wrap(
2242 function(proceed, element) {
2243 element = $(element);
2244 var position = element.getStyle('position');
2245 if (position != 'static') return proceed(element);
2246 element.setStyle({ position: 'relative' });
2247 var value = proceed(element);
2248 element.setStyle({ position: position });
2249 return value;
2250 }
2251 );
2252 });
2253
2254 Element.Methods.getStyle = function(element, style) {
2255 element = $(element);
2256 style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2257 var value = element.style[style];
2258 if (!value && element.currentStyle) value = element.currentStyle[style];
2259
2260 if (style == 'opacity') {
2261 if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2262 if (value[1]) return parseFloat(value[1]) / 100;
2263 return 1.0;
2264 }
2265
2266 if (value == 'auto') {
2267 if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2268 return element['offset' + style.capitalize()] + 'px';
2269 return null;
2270 }
2271 return value;
2272 };
2273
2274 Element.Methods.setOpacity = function(element, value) {
2275 function stripAlpha(filter){
2276 return filter.replace(/alpha\([^\)]*\)/gi,'');
2277 }
2278 element = $(element);
2279 var currentStyle = element.currentStyle;
2280 if ((currentStyle && !currentStyle.hasLayout) ||
2281 (!currentStyle && element.style.zoom == 'normal'))
2282 element.style.zoom = 1;
2283
2284 var filter = element.getStyle('filter'), style = element.style;
2285 if (value == 1 || value === '') {
2286 (filter = stripAlpha(filter)) ?
2287 style.filter = filter : style.removeAttribute('filter');
2288 return element;
2289 } else if (value < 0.00001) value = 0;
2290 style.filter = stripAlpha(filter) +
2291 'alpha(opacity=' + (value * 100) + ')';
2292 return element;
2293 };
2294
2295 Element._attributeTranslations = {
2296 read: {
2297 names: {
2298 'class': 'className',
2299 'for': 'htmlFor'
2300 },
2301 values: {
2302 _getAttr: function(element, attribute) {
2303 return element.getAttribute(attribute, 2);
2304 },
2305 _getAttrNode: function(element, attribute) {
2306 var node = element.getAttributeNode(attribute);
2307 return node ? node.value : "";
2308 },
2309 _getEv: function(element, attribute) {
2310 attribute = element.getAttribute(attribute);
2311 return attribute ? attribute.toString().slice(23, -2) : null;
2312 },
2313 _flag: function(element, attribute) {
2314 return $(element).hasAttribute(attribute) ? attribute : null;
2315 },
2316 style: function(element) {
2317 return element.style.cssText.toLowerCase();
2318 },
2319 title: function(element) {
2320 return element.title;
2321 }
2322 }
2323 }
2324 };
2325
2326 Element._attributeTranslations.write = {
2327 names: Object.clone(Element._attributeTranslations.read.names),
2328 values: {
2329 checked: function(element, value) {
2330 element.checked = !!value;
2331 },
2332
2333 style: function(element, value) {
2334 element.style.cssText = value ? value : '';
2335 }
2336 }
2337 };
2338
2339 Element._attributeTranslations.has = {};
2340
2341 $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2342 'encType maxLength readOnly longDesc').each(function(attr) {
2343 Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2344 Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2345 });
2346
2347 (function(v) {
2348 Object.extend(v, {
2349 href: v._getAttr,
2350 src: v._getAttr,
2351 type: v._getAttr,
2352 action: v._getAttrNode,
2353 disabled: v._flag,
2354 checked: v._flag,
2355 readonly: v._flag,
2356 multiple: v._flag,
2357 onload: v._getEv,
2358 onunload: v._getEv,
2359 onclick: v._getEv,
2360 ondblclick: v._getEv,
2361 onmousedown: v._getEv,
2362 onmouseup: v._getEv,
2363 onmouseover: v._getEv,
2364 onmousemove: v._getEv,
2365 onmouseout: v._getEv,
2366 onfocus: v._getEv,
2367 onblur: v._getEv,
2368 onkeypress: v._getEv,
2369 onkeydown: v._getEv,
2370 onkeyup: v._getEv,
2371 onsubmit: v._getEv,
2372 onreset: v._getEv,
2373 onselect: v._getEv,
2374 onchange: v._getEv
2375 });
2376 })(Element._attributeTranslations.read.values);
2377}
2378
2379else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
2380 Element.Methods.setOpacity = function(element, value) {
2381 element = $(element);
2382 element.style.opacity = (value == 1) ? 0.999999 :
2383 (value === '') ? '' : (value < 0.00001) ? 0 : value;
2384 return element;
2385 };
2386}
2387
2388else if (Prototype.Browser.WebKit) {
2389 Element.Methods.setOpacity = function(element, value) {
2390 element = $(element);
2391 element.style.opacity = (value == 1 || value === '') ? '' :
2392 (value < 0.00001) ? 0 : value;
2393
2394 if (value == 1)
2395 if(element.tagName == 'IMG' && element.width) {
2396 element.width++; element.width--;
2397 } else try {
2398 var n = document.createTextNode(' ');
2399 element.appendChild(n);
2400 element.removeChild(n);
2401 } catch (e) { }
2402
2403 return element;
2404 };
2405
2406 // Safari returns margins on body which is incorrect if the child is absolutely
2407 // positioned. For performance reasons, redefine Element#cumulativeOffset for
2408 // KHTML/WebKit only.
2409 Element.Methods.cumulativeOffset = function(element) {
2410 var valueT = 0, valueL = 0;
2411 do {
2412 valueT += element.offsetTop || 0;
2413 valueL += element.offsetLeft || 0;
2414 if (element.offsetParent == document.body)
2415 if (Element.getStyle(element, 'position') == 'absolute') break;
2416
2417 element = element.offsetParent;
2418 } while (element);
2419
2420 return Element._returnOffset(valueL, valueT);
2421 };
2422}
2423
2424if (Prototype.Browser.IE || Prototype.Browser.Opera) {
2425 // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
2426 Element.Methods.update = function(element, content) {
2427 element = $(element);
2428
2429 if (content && content.toElement) content = content.toElement();
2430 if (Object.isElement(content)) return element.update().insert(content);
2431
2432 content = Object.toHTML(content);
2433 var tagName = element.tagName.toUpperCase();
2434
2435 if (tagName in Element._insertionTranslations.tags) {
2436 $A(element.childNodes).each(function(node) { element.removeChild(node) });
2437 Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2438 .each(function(node) { element.appendChild(node) });
2439 }
2440 else element.innerHTML = content.stripScripts();
2441
2442 content.evalScripts.bind(content).defer();
2443 return element;
2444 };
2445}
2446
2447if (document.createElement('div').outerHTML) {
2448 Element.Methods.replace = function(element, content) {
2449 element = $(element);
2450
2451 if (content && content.toElement) content = content.toElement();
2452 if (Object.isElement(content)) {
2453 element.parentNode.replaceChild(content, element);
2454 return element;
2455 }
2456
2457 content = Object.toHTML(content);
2458 var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
2459
2460 if (Element._insertionTranslations.tags[tagName]) {
2461 var nextSibling = element.next();
2462 var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2463 parent.removeChild(element);
2464 if (nextSibling)
2465 fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
2466 else
2467 fragments.each(function(node) { parent.appendChild(node) });
2468 }
2469 else element.outerHTML = content.stripScripts();
2470
2471 content.evalScripts.bind(content).defer();
2472 return element;
2473 };
2474}
2475
2476Element._returnOffset = function(l, t) {
2477 var result = [l, t];
2478 result.left = l;
2479 result.top = t;
2480 return result;
2481};
2482
2483Element._getContentFromAnonymousElement = function(tagName, html) {
2484 var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
2485 div.innerHTML = t[0] + html + t[1];
2486 t[2].times(function() { div = div.firstChild });
2487 return $A(div.childNodes);
2488};
2489
2490Element._insertionTranslations = {
2491 before: {
2492 adjacency: 'beforeBegin',
2493 insert: function(element, node) {
2494 element.parentNode.insertBefore(node, element);
2495 },
2496 initializeRange: function(element, range) {
2497 range.setStartBefore(element);
2498 }
2499 },
2500 top: {
2501 adjacency: 'afterBegin',
2502 insert: function(element, node) {
2503 element.insertBefore(node, element.firstChild);
2504 },
2505 initializeRange: function(element, range) {
2506 range.selectNodeContents(element);
2507 range.collapse(true);
2508 }
2509 },
2510 bottom: {
2511 adjacency: 'beforeEnd',
2512 insert: function(element, node) {
2513 element.appendChild(node);
2514 }
2515 },
2516 after: {
2517 adjacency: 'afterEnd',
2518 insert: function(element, node) {
2519 element.parentNode.insertBefore(node, element.nextSibling);
2520 },
2521 initializeRange: function(element, range) {
2522 range.setStartAfter(element);
2523 }
2524 },
2525 tags: {
2526 TABLE: ['<table>', '</table>', 1],
2527 TBODY: ['<table><tbody>', '</tbody></table>', 2],
2528 TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
2529 TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
2530 SELECT: ['<select>', '</select>', 1]
2531 }
2532};
2533
2534(function() {
2535 this.bottom.initializeRange = this.top.initializeRange;
2536 Object.extend(this.tags, {
2537 THEAD: this.tags.TBODY,
2538 TFOOT: this.tags.TBODY,
2539 TH: this.tags.TD
2540 });
2541}).call(Element._insertionTranslations);
2542
2543Element.Methods.Simulated = {
2544 hasAttribute: function(element, attribute) {
2545 attribute = Element._attributeTranslations.has[attribute] || attribute;
2546 var node = $(element).getAttributeNode(attribute);
2547 return node && node.specified;
2548 }
2549};
2550
2551Element.Methods.ByTag = { };
2552
2553Object.extend(Element, Element.Methods);
2554
2555if (!Prototype.BrowserFeatures.ElementExtensions &&
2556 document.createElement('div').__proto__) {
2557 window.HTMLElement = { };
2558 window.HTMLElement.prototype = document.createElement('div').__proto__;
2559 Prototype.BrowserFeatures.ElementExtensions = true;
2560}
2561
2562Element.extend = (function() {
2563 if (Prototype.BrowserFeatures.SpecificElementExtensions)
2564 return Prototype.K;
2565
2566 var Methods = { }, ByTag = Element.Methods.ByTag;
2567
2568 var extend = Object.extend(function(element) {
2569 if (!element || element._extendedByPrototype ||
2570 element.nodeType != 1 || element == window) return element;
2571
2572 var methods = Object.clone(Methods),
2573 tagName = element.tagName, property, value;
2574
2575 // extend methods for specific tags
2576 if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
2577
2578 for (property in methods) {
2579 value = methods[property];
2580 if (Object.isFunction(value) && !(property in element))
2581 element[property] = value.methodize();
2582 }
2583
2584 element._extendedByPrototype = Prototype.emptyFunction;
2585 return element;
2586
2587 }, {
2588 refresh: function() {
2589 // extend methods for all tags (Safari doesn't need this)
2590 if (!Prototype.BrowserFeatures.ElementExtensions) {
2591 Object.extend(Methods, Element.Methods);
2592 Object.extend(Methods, Element.Methods.Simulated);
2593 }
2594 }
2595 });
2596
2597 extend.refresh();
2598 return extend;
2599})();
2600
2601Element.hasAttribute = function(element, attribute) {
2602 if (element.hasAttribute) return element.hasAttribute(attribute);
2603 return Element.Methods.Simulated.hasAttribute(element, attribute);
2604};
2605
2606Element.addMethods = function(methods) {
2607 var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
2608
2609 if (!methods) {
2610 Object.extend(Form, Form.Methods);
2611 Object.extend(Form.Element, Form.Element.Methods);
2612 Object.extend(Element.Methods.ByTag, {
2613 "FORM": Object.clone(Form.Methods),
2614 "INPUT": Object.clone(Form.Element.Methods),
2615 "SELECT": Object.clone(Form.Element.Methods),
2616 "TEXTAREA": Object.clone(Form.Element.Methods)
2617 });
2618 }
2619
2620 if (arguments.length == 2) {
2621 var tagName = methods;
2622 methods = arguments[1];
2623 }
2624
2625 if (!tagName) Object.extend(Element.Methods, methods || { });
2626 else {
2627 if (Object.isArray(tagName)) tagName.each(extend);
2628 else extend(tagName);
2629 }
2630
2631 function extend(tagName) {
2632 tagName = tagName.toUpperCase();
2633 if (!Element.Methods.ByTag[tagName])
2634 Element.Methods.ByTag[tagName] = { };
2635 Object.extend(Element.Methods.ByTag[tagName], methods);
2636 }
2637
2638 function copy(methods, destination, onlyIfAbsent) {
2639 onlyIfAbsent = onlyIfAbsent || false;
2640 for (var property in methods) {
2641 var value = methods[property];
2642 if (!Object.isFunction(value)) continue;
2643 if (!onlyIfAbsent || !(property in destination))
2644 destination[property] = value.methodize();
2645 }
2646 }
2647
2648 function findDOMClass(tagName) {
2649 var klass;
2650 var trans = {
2651 "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
2652 "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
2653 "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
2654 "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
2655 "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
2656 "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
2657 "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
2658 "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
2659 "FrameSet", "IFRAME": "IFrame"
2660 };
2661 if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
2662 if (window[klass]) return window[klass];
2663 klass = 'HTML' + tagName + 'Element';
2664 if (window[klass]) return window[klass];
2665 klass = 'HTML' + tagName.capitalize() + 'Element';
2666 if (window[klass]) return window[klass];
2667
2668 window[klass] = { };
2669 window[klass].prototype = document.createElement(tagName).__proto__;
2670 return window[klass];
2671 }
2672
2673 if (F.ElementExtensions) {
2674 copy(Element.Methods, HTMLElement.prototype);
2675 copy(Element.Methods.Simulated, HTMLElement.prototype, true);
2676 }
2677
2678 if (F.SpecificElementExtensions) {
2679 for (var tag in Element.Methods.ByTag) {
2680 var klass = findDOMClass(tag);
2681 if (Object.isUndefined(klass)) continue;
2682 copy(T[tag], klass.prototype);
2683 }
2684 }
2685
2686 Object.extend(Element, Element.Methods);
2687 delete Element.ByTag;
2688
2689 if (Element.extend.refresh) Element.extend.refresh();
2690 Element.cache = { };
2691};
2692
2693document.viewport = {
2694 getDimensions: function() {
2695 var dimensions = { };
2696 var B = Prototype.Browser;
2697 $w('width height').each(function(d) {
2698 var D = d.capitalize();
2699 dimensions[d] = (B.WebKit && !document.evaluate) ? self['inner' + D] :
2700 (B.Opera) ? document.body['client' + D] : document.documentElement['client' + D];
2701 });
2702 return dimensions;
2703 },
2704
2705 getWidth: function() {
2706 return this.getDimensions().width;
2707 },
2708
2709 getHeight: function() {
2710 return this.getDimensions().height;
2711 },
2712
2713 getScrollOffsets: function() {
2714 return Element._returnOffset(
2715 window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
2716 window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
2717 }
2718};
2719/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
2720 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
2721 * license. Please see http://www.yui-ext.com/ for more information. */
2722
2723var Selector = Class.create({
2724 initialize: function(expression) {
2725 this.expression = expression.strip();
2726 this.compileMatcher();
2727 },
2728
2729 shouldUseXPath: function() {
2730 if (!Prototype.BrowserFeatures.XPath) return false;
2731
2732 var e = this.expression;
2733
2734 // Safari 3 chokes on :*-of-type and :empty
2735 if (Prototype.Browser.WebKit &&
2736 (e.include("-of-type") || e.include(":empty")))
2737 return false;
2738
2739 // XPath can't do namespaced attributes, nor can it read
2740 // the "checked" property from DOM nodes
2741 if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
2742 return false;
2743
2744 return true;
2745 },
2746
2747 compileMatcher: function() {
2748 if (this.shouldUseXPath())
2749 return this.compileXPathMatcher();
2750
2751 var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
2752 c = Selector.criteria, le, p, m;
2753
2754 if (Selector._cache[e]) {
2755 this.matcher = Selector._cache[e];
2756 return;
2757 }
2758
2759 this.matcher = ["this.matcher = function(root) {",
2760 "var r = root, h = Selector.handlers, c = false, n;"];
2761
2762 while (e && le != e && (/\S/).test(e)) {
2763 le = e;
2764 for (var i in ps) {
2765 p = ps[i];
2766 if (m = e.match(p)) {
2767 this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
2768 new Template(c[i]).evaluate(m));
2769 e = e.replace(m[0], '');
2770 break;
2771 }
2772 }
2773 }
2774
2775 this.matcher.push("return h.unique(n);\n}");
2776 eval(this.matcher.join('\n'));
2777 Selector._cache[this.expression] = this.matcher;
2778 },
2779
2780 compileXPathMatcher: function() {
2781 var e = this.expression, ps = Selector.patterns,
2782 x = Selector.xpath, le, m;
2783
2784 if (Selector._cache[e]) {
2785 this.xpath = Selector._cache[e]; return;
2786 }
2787
2788 this.matcher = ['.//*'];
2789 while (e && le != e && (/\S/).test(e)) {
2790 le = e;
2791 for (var i in ps) {
2792 if (m = e.match(ps[i])) {
2793 this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
2794 new Template(x[i]).evaluate(m));
2795 e = e.replace(m[0], '');
2796 break;
2797 }
2798 }
2799 }
2800
2801 this.xpath = this.matcher.join('');
2802 Selector._cache[this.expression] = this.xpath;
2803 },
2804
2805 findElements: function(root) {
2806 root = root || document;
2807 if (this.xpath) return document._getElementsByXPath(this.xpath, root);
2808 return this.matcher(root);
2809 },
2810
2811 match: function(element) {
2812 this.tokens = [];
2813
2814 var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
2815 var le, p, m;
2816
2817 while (e && le !== e && (/\S/).test(e)) {
2818 le = e;
2819 for (var i in ps) {
2820 p = ps[i];
2821 if (m = e.match(p)) {
2822 // use the Selector.assertions methods unless the selector
2823 // is too complex.
2824 if (as[i]) {
2825 this.tokens.push([i, Object.clone(m)]);
2826 e = e.replace(m[0], '');
2827 } else {
2828 // reluctantly do a document-wide search
2829 // and look for a match in the array
2830 return this.findElements(document).include(element);
2831 }
2832 }
2833 }
2834 }
2835
2836 var match = true, name, matches;
2837 for (var i = 0, token; token = this.tokens[i]; i++) {
2838 name = token[0], matches = token[1];
2839 if (!Selector.assertions[name](element, matches)) {
2840 match = false; break;
2841 }
2842 }
2843
2844 return match;
2845 },
2846
2847 toString: function() {
2848 return this.expression;
2849 },
2850
2851 inspect: function() {
2852 return "#<Selector:" + this.expression.inspect() + ">";
2853 }
2854});
2855
2856Object.extend(Selector, {
2857 _cache: { },
2858
2859 xpath: {
2860 descendant: "//*",
2861 child: "/*",
2862 adjacent: "/following-sibling::*[1]",
2863 laterSibling: '/following-sibling::*',
2864 tagName: function(m) {
2865 if (m[1] == '*') return '';
2866 return "[local-name()='" + m[1].toLowerCase() +
2867 "' or local-name()='" + m[1].toUpperCase() + "']";
2868 },
2869 className: "[contains(concat(' ', @class, ' '), ' #{1} ')]",
2870 id: "[@id='#{1}']",
2871 attrPresence: function(m) {
2872 m[1] = m[1].toLowerCase();
2873 return new Template("[@#{1}]").evaluate(m);
2874 },
2875 attr: function(m) {
2876 m[1] = m[1].toLowerCase();
2877 m[3] = m[5] || m[6];
2878 return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
2879 },
2880 pseudo: function(m) {
2881 var h = Selector.xpath.pseudos[m[1]];
2882 if (!h) return '';
2883 if (Object.isFunction(h)) return h(m);
2884 return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
2885 },
2886 operators: {
2887 '=': "[@#{1}='#{3}']",
2888 '!=': "[@#{1}!='#{3}']",
2889 '^=': "[starts-with(@#{1}, '#{3}')]",
2890 '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
2891 '*=': "[contains(@#{1}, '#{3}')]",
2892 '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
2893 '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
2894 },
2895 pseudos: {
2896 'first-child': '[not(preceding-sibling::*)]',
2897 'last-child': '[not(following-sibling::*)]',
2898 'only-child': '[not(preceding-sibling::* or following-sibling::*)]',
2899 'empty': "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
2900 'checked': "[@checked]",
2901 'disabled': "[@disabled]",
2902 'enabled': "[not(@disabled)]",
2903 'not': function(m) {
2904 var e = m[6], p = Selector.patterns,
2905 x = Selector.xpath, le, v;
2906
2907 var exclusion = [];
2908 while (e && le != e && (/\S/).test(e)) {
2909 le = e;
2910 for (var i in p) {
2911 if (m = e.match(p[i])) {
2912 v = Object.isFunction(x[i]) ? x[i](m) : new Template(x[i]).evaluate(m);
2913 exclusion.push("(" + v.substring(1, v.length - 1) + ")");
2914 e = e.replace(m[0], '');
2915 break;
2916 }
2917 }
2918 }
2919 return "[not(" + exclusion.join(" and ") + ")]";
2920 },
2921 'nth-child': function(m) {
2922 return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*) + 1) ", m);
2923 },
2924 'nth-last-child': function(m) {
2925 return Selector.xpath.pseudos.nth("(count(./following-sibling::*) + 1) ", m);
2926 },
2927 'nth-of-type': function(m) {
2928 return Selector.xpath.pseudos.nth("position() ", m);
2929 },
2930 'nth-last-of-type': function(m) {
2931 return Selector.xpath.pseudos.nth("(last() + 1 - position()) ", m);
2932 },
2933 'first-of-type': function(m) {
2934 m[6] = "1"; return Selector.xpath.pseudos['nth-of-type'](m);
2935 },
2936 'last-of-type': function(m) {
2937 m[6] = "1"; return Selector.xpath.pseudos['nth-last-of-type'](m);
2938 },
2939 'only-of-type': function(m) {
2940 var p = Selector.xpath.pseudos; return p['first-of-type'](m) + p['last-of-type'](m);
2941 },
2942 nth: function(fragment, m) {
2943 var mm, formula = m[6], predicate;
2944 if (formula == 'even') formula = '2n+0';
2945 if (formula == 'odd') formula = '2n+1';
2946 if (mm = formula.match(/^(\d+)$/)) // digit only
2947 return '[' + fragment + "= " + mm[1] + ']';
2948 if (mm = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
2949 if (mm[1] == "-") mm[1] = -1;
2950 var a = mm[1] ? Number(mm[1]) : 1;
2951 var b = mm[2] ? Number(mm[2]) : 0;
2952 predicate = "[((#{fragment} - #{b}) mod #{a} = 0) and " +
2953 "((#{fragment} - #{b}) div #{a} >= 0)]";
2954 return new Template(predicate).evaluate({
2955 fragment: fragment, a: a, b: b });
2956 }
2957 }
2958 }
2959 },
2960
2961 criteria: {
2962 tagName: 'n = h.tagName(n, r, "#{1}", c); c = false;',
2963 className: 'n = h.className(n, r, "#{1}", c); c = false;',
2964 id: 'n = h.id(n, r, "#{1}", c); c = false;',
2965 attrPresence: 'n = h.attrPresence(n, r, "#{1}"); c = false;',
2966 attr: function(m) {
2967 m[3] = (m[5] || m[6]);
2968 return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}"); c = false;').evaluate(m);
2969 },
2970 pseudo: function(m) {
2971 if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
2972 return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
2973 },
2974 descendant: 'c = "descendant";',
2975 child: 'c = "child";',
2976 adjacent: 'c = "adjacent";',
2977 laterSibling: 'c = "laterSibling";'
2978 },
2979
2980 patterns: {
2981 // combinators must be listed first
2982 // (and descendant needs to be last combinator)
2983 laterSibling: /^\s*~\s*/,
2984 child: /^\s*>\s*/,
2985 adjacent: /^\s*\+\s*/,
2986 descendant: /^\s/,
2987
2988 // selectors follow
2989 tagName: /^\s*(\*|[\w\-]+)(\b|$)?/,
2990 id: /^#([\w\-\*]+)(\b|$)/,
2991 className: /^\.([\w\-\*]+)(\b|$)/,
2992 pseudo: /^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s)|(?=:))/,
2993 attrPresence: /^\[([\w]+)\]/,
2994 attr: /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
2995 },
2996
2997 // for Selector.match and Element#match
2998 assertions: {
2999 tagName: function(element, matches) {
3000 return matches[1].toUpperCase() == element.tagName.toUpperCase();
3001 },
3002
3003 className: function(element, matches) {
3004 return Element.hasClassName(element, matches[1]);
3005 },
3006
3007 id: function(element, matches) {
3008 return element.id === matches[1];
3009 },
3010
3011 attrPresence: function(element, matches) {
3012 return Element.hasAttribute(element, matches[1]);
3013 },
3014
3015 attr: function(element, matches) {
3016 var nodeValue = Element.readAttribute(element, matches[1]);
3017 return Selector.operators[matches[2]](nodeValue, matches[3]);
3018 }
3019 },
3020
3021 handlers: {
3022 // UTILITY FUNCTIONS
3023 // joins two collections
3024 concat: function(a, b) {
3025 for (var i = 0, node; node = b[i]; i++)
3026 a.push(node);
3027 return a;
3028 },
3029
3030 // marks an array of nodes for counting
3031 mark: function(nodes) {
3032 for (var i = 0, node; node = nodes[i]; i++)
3033 node._counted = true;
3034 return nodes;
3035 },
3036
3037 unmark: function(nodes) {
3038 for (var i = 0, node; node = nodes[i]; i++)
3039 node._counted = undefined;
3040 return nodes;
3041 },
3042
3043 // mark each child node with its position (for nth calls)
3044 // "ofType" flag indicates whether we're indexing for nth-of-type
3045 // rather than nth-child
3046 index: function(parentNode, reverse, ofType) {
3047 parentNode._counted = true;
3048 if (reverse) {
3049 for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
3050 var node = nodes[i];
3051 if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
3052 }
3053 } else {
3054 for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
3055 if (node.nodeType == 1 && (!ofType || node._counted)) node.nodeIndex = j++;
3056 }
3057 },
3058
3059 // filters out duplicates and extends all nodes
3060 unique: function(nodes) {
3061 if (nodes.length == 0) return nodes;
3062 var results = [], n;
3063 for (var i = 0, l = nodes.length; i < l; i++)
3064 if (!(n = nodes[i])._counted) {
3065 n._counted = true;
3066 results.push(Element.extend(n));
3067 }
3068 return Selector.handlers.unmark(results);
3069 },
3070
3071 // COMBINATOR FUNCTIONS
3072 descendant: function(nodes) {
3073 var h = Selector.handlers;
3074 for (var i = 0, results = [], node; node = nodes[i]; i++)
3075 h.concat(results, node.getElementsByTagName('*'));
3076 return results;
3077 },
3078
3079 child: function(nodes) {
3080 var h = Selector.handlers;
3081 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3082 for (var j = 0, child; child = node.childNodes[j]; j++)
3083 if (child.nodeType == 1 && child.tagName != '!') results.push(child);
3084 }
3085 return results;
3086 },
3087
3088 adjacent: function(nodes) {
3089 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3090 var next = this.nextElementSibling(node);
3091 if (next) results.push(next);
3092 }
3093 return results;
3094 },
3095
3096 laterSibling: function(nodes) {
3097 var h = Selector.handlers;
3098 for (var i = 0, results = [], node; node = nodes[i]; i++)
3099 h.concat(results, Element.nextSiblings(node));
3100 return results;
3101 },
3102
3103 nextElementSibling: function(node) {
3104 while (node = node.nextSibling)
3105 if (node.nodeType == 1) return node;
3106 return null;
3107 },
3108
3109 previousElementSibling: function(node) {
3110 while (node = node.previousSibling)
3111 if (node.nodeType == 1) return node;
3112 return null;
3113 },
3114
3115 // TOKEN FUNCTIONS
3116 tagName: function(nodes, root, tagName, combinator) {
3117 tagName = tagName.toUpperCase();
3118 var results = [], h = Selector.handlers;
3119 if (nodes) {
3120 if (combinator) {
3121 // fastlane for ordinary descendant combinators
3122 if (combinator == "descendant") {
3123 for (var i = 0, node; node = nodes[i]; i++)
3124 h.concat(results, node.getElementsByTagName(tagName));
3125 return results;
3126 } else nodes = this[combinator](nodes);
3127 if (tagName == "*") return nodes;
3128 }
3129 for (var i = 0, node; node = nodes[i]; i++)
3130 if (node.tagName.toUpperCase() == tagName) results.push(node);
3131 return results;
3132 } else return root.getElementsByTagName(tagName);
3133 },
3134
3135 id: function(nodes, root, id, combinator) {
3136 var targetNode = $(id), h = Selector.handlers;
3137 if (!targetNode) return [];
3138 if (!nodes && root == document) return [targetNode];
3139 if (nodes) {
3140 if (combinator) {
3141 if (combinator == 'child') {
3142 for (var i = 0, node; node = nodes[i]; i++)
3143 if (targetNode.parentNode == node) return [targetNode];
3144 } else if (combinator == 'descendant') {
3145 for (var i = 0, node; node = nodes[i]; i++)
3146 if (Element.descendantOf(targetNode, node)) return [targetNode];
3147 } else if (combinator == 'adjacent') {
3148 for (var i = 0, node; node = nodes[i]; i++)
3149 if (Selector.handlers.previousElementSibling(targetNode) == node)
3150 return [targetNode];
3151 } else nodes = h[combinator](nodes);
3152 }
3153 for (var i = 0, node; node = nodes[i]; i++)
3154 if (node == targetNode) return [targetNode];
3155 return [];
3156 }
3157 return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
3158 },
3159
3160 className: function(nodes, root, className, combinator) {
3161 if (nodes && combinator) nodes = this[combinator](nodes);
3162 return Selector.handlers.byClassName(nodes, root, className);
3163 },
3164
3165 byClassName: function(nodes, root, className) {
3166 if (!nodes) nodes = Selector.handlers.descendant([root]);
3167 var needle = ' ' + className + ' ';
3168 for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
3169 nodeClassName = node.className;
3170 if (nodeClassName.length == 0) continue;
3171 if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
3172 results.push(node);
3173 }
3174 return results;
3175 },
3176
3177 attrPresence: function(nodes, root, attr) {
3178 if (!nodes) nodes = root.getElementsByTagName("*");
3179 var results = [];
3180 for (var i = 0, node; node = nodes[i]; i++)
3181 if (Element.hasAttribute(node, attr)) results.push(node);
3182 return results;
3183 },
3184
3185 attr: function(nodes, root, attr, value, operator) {
3186 if (!nodes) nodes = root.getElementsByTagName("*");
3187 var handler = Selector.operators[operator], results = [];
3188 for (var i = 0, node; node = nodes[i]; i++) {
3189 var nodeValue = Element.readAttribute(node, attr);
3190 if (nodeValue === null) continue;
3191 if (handler(nodeValue, value)) results.push(node);
3192 }
3193 return results;
3194 },
3195
3196 pseudo: function(nodes, name, value, root, combinator) {
3197 if (nodes && combinator) nodes = this[combinator](nodes);
3198 if (!nodes) nodes = root.getElementsByTagName("*");
3199 return Selector.pseudos[name](nodes, value, root);
3200 }
3201 },
3202
3203 pseudos: {
3204 'first-child': function(nodes, value, root) {
3205 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3206 if (Selector.handlers.previousElementSibling(node)) continue;
3207 results.push(node);
3208 }
3209 return results;
3210 },
3211 'last-child': function(nodes, value, root) {
3212 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3213 if (Selector.handlers.nextElementSibling(node)) continue;
3214 results.push(node);
3215 }
3216 return results;
3217 },
3218 'only-child': function(nodes, value, root) {
3219 var h = Selector.handlers;
3220 for (var i = 0, results = [], node; node = nodes[i]; i++)
3221 if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
3222 results.push(node);
3223 return results;
3224 },
3225 'nth-child': function(nodes, formula, root) {
3226 return Selector.pseudos.nth(nodes, formula, root);
3227 },
3228 'nth-last-child': function(nodes, formula, root) {
3229 return Selector.pseudos.nth(nodes, formula, root, true);
3230 },
3231 'nth-of-type': function(nodes, formula, root) {
3232 return Selector.pseudos.nth(nodes, formula, root, false, true);
3233 },
3234 'nth-last-of-type': function(nodes, formula, root) {
3235 return Selector.pseudos.nth(nodes, formula, root, true, true);
3236 },
3237 'first-of-type': function(nodes, formula, root) {
3238 return Selector.pseudos.nth(nodes, "1", root, false, true);
3239 },
3240 'last-of-type': function(nodes, formula, root) {
3241 return Selector.pseudos.nth(nodes, "1", root, true, true);
3242 },
3243 'only-of-type': function(nodes, formula, root) {
3244 var p = Selector.pseudos;
3245 return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
3246 },
3247
3248 // handles the an+b logic
3249 getIndices: function(a, b, total) {
3250 if (a == 0) return b > 0 ? [b] : [];
3251 return $R(1, total).inject([], function(memo, i) {
3252 if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
3253 return memo;
3254 });
3255 },
3256
3257 // handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
3258 nth: function(nodes, formula, root, reverse, ofType) {
3259 if (nodes.length == 0) return [];
3260 if (formula == 'even') formula = '2n+0';
3261 if (formula == 'odd') formula = '2n+1';
3262 var h = Selector.handlers, results = [], indexed = [], m;
3263 h.mark(nodes);
3264 for (var i = 0, node; node = nodes[i]; i++) {
3265 if (!node.parentNode._counted) {
3266 h.index(node.parentNode, reverse, ofType);
3267 indexed.push(node.parentNode);
3268 }
3269 }
3270 if (formula.match(/^\d+$/)) { // just a number
3271 formula = Number(formula);
3272 for (var i = 0, node; node = nodes[i]; i++)
3273 if (node.nodeIndex == formula) results.push(node);
3274 } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
3275 if (m[1] == "-") m[1] = -1;
3276 var a = m[1] ? Number(m[1]) : 1;
3277 var b = m[2] ? Number(m[2]) : 0;
3278 var indices = Selector.pseudos.getIndices(a, b, nodes.length);
3279 for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
3280 for (var j = 0; j < l; j++)
3281 if (node.nodeIndex == indices[j]) results.push(node);
3282 }
3283 }
3284 h.unmark(nodes);
3285 h.unmark(indexed);
3286 return results;
3287 },
3288
3289 'empty': function(nodes, value, root) {
3290 for (var i = 0, results = [], node; node = nodes[i]; i++) {
3291 // IE treats comments as element nodes
3292 if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
3293 results.push(node);
3294 }
3295 return results;
3296 },
3297
3298 'not': function(nodes, selector, root) {
3299 var h = Selector.handlers, selectorType, m;
3300 var exclusions = new Selector(selector).findElements(root);
3301 h.mark(exclusions);
3302 for (var i = 0, results = [], node; node = nodes[i]; i++)
3303 if (!node._counted) results.push(node);
3304 h.unmark(exclusions);
3305 return results;
3306 },
3307
3308 'enabled': function(nodes, value, root) {
3309 for (var i = 0, results = [], node; node = nodes[i]; i++)
3310 if (!node.disabled) results.push(node);
3311 return results;
3312 },
3313
3314 'disabled': function(nodes, value, root) {
3315 for (var i = 0, results = [], node; node = nodes[i]; i++)
3316 if (node.disabled) results.push(node);
3317 return results;
3318 },
3319
3320 'checked': function(nodes, value, root) {
3321 for (var i = 0, results = [], node; node = nodes[i]; i++)
3322 if (node.checked) results.push(node);
3323 return results;
3324 }
3325 },
3326
3327 operators: {
3328 '=': function(nv, v) { return nv == v; },
3329 '!=': function(nv, v) { return nv != v; },
3330 '^=': function(nv, v) { return nv.startsWith(v); },
3331 '$=': function(nv, v) { return nv.endsWith(v); },
3332 '*=': function(nv, v) { return nv.include(v); },
3333 '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
3334 '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
3335 },
3336
3337 matchElements: function(elements, expression) {
3338 var matches = new Selector(expression).findElements(), h = Selector.handlers;
3339 h.mark(matches);
3340 for (var i = 0, results = [], element; element = elements[i]; i++)
3341 if (element._counted) results.push(element);
3342 h.unmark(matches);
3343 return results;
3344 },
3345
3346 findElement: function(elements, expression, index) {
3347 if (Object.isNumber(expression)) {
3348 index = expression; expression = false;
3349 }
3350 return Selector.matchElements(elements, expression || '*')[index || 0];
3351 },
3352
3353 findChildElements: function(element, expressions) {
3354 var exprs = expressions.join(',');
3355 expressions = [];
3356 exprs.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
3357 expressions.push(m[1].strip());
3358 });
3359 var results = [], h = Selector.handlers;
3360 for (var i = 0, l = expressions.length, selector; i < l; i++) {
3361 selector = new Selector(expressions[i].strip());
3362 h.concat(results, selector.findElements(element));
3363 }
3364 return (l > 1) ? h.unique(results) : results;
3365 }
3366});
3367
3368if (Prototype.Browser.IE) {
3369 // IE returns comment nodes on getElementsByTagName("*").
3370 // Filter them out.
3371 Selector.handlers.concat = function(a, b) {
3372 for (var i = 0, node; node = b[i]; i++)
3373 if (node.tagName !== "!") a.push(node);
3374 return a;
3375 };
3376}
3377
3378function $$() {
3379 return Selector.findChildElements(document, $A(arguments));
3380}
3381var Form = {
3382 reset: function(form) {
3383 $(form).reset();
3384 return form;
3385 },
3386
3387 serializeElements: function(elements, options) {
3388 if (typeof options != 'object') options = { hash: !!options };
3389 else if (Object.isUndefined(options.hash)) options.hash = true;
3390 var key, value, submitted = false, submit = options.submit;
3391
3392 var data = elements.inject({ }, function(result, element) {
3393 if (!element.disabled && element.name) {
3394 key = element.name; value = $(element).getValue();
3395 if (value != null && (element.type != 'submit' || (!submitted &&
3396 submit !== false && (!submit || key == submit) && (submitted = true)))) {
3397 if (key in result) {
3398 // a key is already present; construct an array of values
3399 if (!Object.isArray(result[key])) result[key] = [result[key]];
3400 result[key].push(value);
3401 }
3402 else result[key] = value;
3403 }
3404 }
3405 return result;
3406 });
3407
3408 return options.hash ? data : Object.toQueryString(data);
3409 }
3410};
3411
3412Form.Methods = {
3413 serialize: function(form, options) {
3414 return Form.serializeElements(Form.getElements(form), options);
3415 },
3416
3417 getElements: function(form) {
3418 return $A($(form).getElementsByTagName('*')).inject([],
3419 function(elements, child) {
3420 if (Form.Element.Serializers[child.tagName.toLowerCase()])
3421 elements.push(Element.extend(child));
3422 return elements;
3423 }
3424 );
3425 },
3426
3427 getInputs: function(form, typeName, name) {
3428 form = $(form);
3429 var inputs = form.getElementsByTagName('input');
3430
3431 if (!typeName && !name) return $A(inputs).map(Element.extend);
3432
3433 for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
3434 var input = inputs[i];
3435 if ((typeName && input.type != typeName) || (name && input.name != name))
3436 continue;
3437 matchingInputs.push(Element.extend(input));
3438 }
3439
3440 return matchingInputs;
3441 },
3442
3443 disable: function(form) {
3444 form = $(form);
3445 Form.getElements(form).invoke('disable');
3446 return form;
3447 },
3448
3449 enable: function(form) {
3450 form = $(form);
3451 Form.getElements(form).invoke('enable');
3452 return form;
3453 },
3454
3455 findFirstElement: function(form) {
3456 var elements = $(form).getElements().findAll(function(element) {
3457 return 'hidden' != element.type && !element.disabled;
3458 });
3459 var firstByIndex = elements.findAll(function(element) {
3460 return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
3461 }).sortBy(function(element) { return element.tabIndex }).first();
3462
3463 return firstByIndex ? firstByIndex : elements.find(function(element) {
3464 return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
3465 });
3466 },
3467
3468 focusFirstElement: function(form) {
3469 form = $(form);
3470 form.findFirstElement().activate();
3471 return form;
3472 },
3473
3474 request: function(form, options) {
3475 form = $(form), options = Object.clone(options || { });
3476
3477 var params = options.parameters, action = form.readAttribute('action') || '';
3478 if (action.blank()) action = window.location.href;
3479 options.parameters = form.serialize(true);
3480
3481 if (params) {
3482 if (Object.isString(params)) params = params.toQueryParams();
3483 Object.extend(options.parameters, params);
3484 }
3485
3486 if (form.hasAttribute('method') && !options.method)
3487 options.method = form.method;
3488
3489 return new Ajax.Request(action, options);
3490 }
3491};
3492
3493/*--------------------------------------------------------------------------*/
3494
3495Form.Element = {
3496 focus: function(element) {
3497 $(element).focus();
3498 return element;
3499 },
3500
3501 select: function(element) {
3502 $(element).select();
3503 return element;
3504 }
3505};
3506
3507Form.Element.Methods = {
3508 serialize: function(element) {
3509 element = $(element);
3510 if (!element.disabled && element.name) {
3511 var value = element.getValue();
3512 if (value != undefined) {
3513 var pair = { };
3514 pair[element.name] = value;
3515 return Object.toQueryString(pair);
3516 }
3517 }
3518 return '';
3519 },
3520
3521 getValue: function(element) {
3522 element = $(element);
3523 var method = element.tagName.toLowerCase();
3524 return Form.Element.Serializers[method](element);
3525 },
3526
3527 setValue: function(element, value) {
3528 element = $(element);
3529 var method = element.tagName.toLowerCase();
3530 Form.Element.Serializers[method](element, value);
3531 return element;
3532 },
3533
3534 clear: function(element) {
3535 $(element).value = '';
3536 return element;
3537 },
3538
3539 present: function(element) {
3540 return $(element).value != '';
3541 },
3542
3543 activate: function(element) {
3544 element = $(element);
3545 try {
3546 element.focus();
3547 if (element.select && (element.tagName.toLowerCase() != 'input' ||
3548 !['button', 'reset', 'submit'].include(element.type)))
3549 element.select();
3550 } catch (e) { }
3551 return element;
3552 },
3553
3554 disable: function(element) {
3555 element = $(element);
3556 element.blur();
3557 element.disabled = true;
3558 return element;
3559 },
3560
3561 enable: function(element) {
3562 element = $(element);
3563 element.disabled = false;
3564 return element;
3565 }
3566};
3567
3568/*--------------------------------------------------------------------------*/
3569
3570var Field = Form.Element;
3571var $F = Form.Element.Methods.getValue;
3572
3573/*--------------------------------------------------------------------------*/
3574
3575Form.Element.Serializers = {
3576 input: function(element, value) {
3577 switch (element.type.toLowerCase()) {
3578 case 'checkbox':
3579 case 'radio':
3580 return Form.Element.Serializers.inputSelector(element, value);
3581 default:
3582 return Form.Element.Serializers.textarea(element, value);
3583 }
3584 },
3585
3586 inputSelector: function(element, value) {
3587 if (Object.isUndefined(value)) return element.checked ? element.value : null;
3588 else element.checked = !!value;
3589 },
3590
3591 textarea: function(element, value) {
3592 if (Object.isUndefined(value)) return element.value;
3593 else element.value = value;
3594 },
3595
3596 select: function(element, index) {
3597 if (Object.isUndefined(index))
3598 return this[element.type == 'select-one' ?
3599 'selectOne' : 'selectMany'](element);
3600 else {
3601 var opt, value, single = !Object.isArray(index);
3602 for (var i = 0, length = element.length; i < length; i++) {
3603 opt = element.options[i];
3604 value = this.optionValue(opt);
3605 if (single) {
3606 if (value == index) {
3607 opt.selected = true;
3608 return;
3609 }
3610 }
3611 else opt.selected = index.include(value);
3612 }
3613 }
3614 },
3615
3616 selectOne: function(element) {
3617 var index = element.selectedIndex;
3618 return index >= 0 ? this.optionValue(element.options[index]) : null;
3619 },
3620
3621 selectMany: function(element) {
3622 var values, length = element.length;
3623 if (!length) return null;
3624
3625 for (var i = 0, values = []; i < length; i++) {
3626 var opt = element.options[i];
3627 if (opt.selected) values.push(this.optionValue(opt));
3628 }
3629 return values;
3630 },
3631
3632 optionValue: function(opt) {
3633 // extend element because hasAttribute may not be native
3634 return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
3635 }
3636};
3637
3638/*--------------------------------------------------------------------------*/
3639
3640Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
3641 initialize: function($super, element, frequency, callback) {
3642 $super(callback, frequency);
3643 this.element = $(element);
3644 this.lastValue = this.getValue();
3645 },
3646
3647 execute: function() {
3648 var value = this.getValue();
3649 if (Object.isString(this.lastValue) && Object.isString(value) ?
3650 this.lastValue != value : String(this.lastValue) != String(value)) {
3651 this.callback(this.element, value);
3652 this.lastValue = value;
3653 }
3654 }
3655});
3656
3657Form.Element.Observer = Class.create(Abstract.TimedObserver, {
3658 getValue: function() {
3659 return Form.Element.getValue(this.element);
3660 }
3661});
3662
3663Form.Observer = Class.create(Abstract.TimedObserver, {
3664 getValue: function() {
3665 return Form.serialize(this.element);
3666 }
3667});
3668
3669/*--------------------------------------------------------------------------*/
3670
3671Abstract.EventObserver = Class.create({
3672 initialize: function(element, callback) {
3673 this.element = $(element);
3674 this.callback = callback;
3675
3676 this.lastValue = this.getValue();
3677 if (this.element.tagName.toLowerCase() == 'form')
3678 this.registerFormCallbacks();
3679 else
3680 this.registerCallback(this.element);
3681 },
3682
3683 onElementEvent: function() {
3684 var value = this.getValue();
3685 if (this.lastValue != value) {
3686 this.callback(this.element, value);
3687 this.lastValue = value;
3688 }
3689 },
3690
3691 registerFormCallbacks: function() {
3692 Form.getElements(this.element).each(this.registerCallback, this);
3693 },
3694
3695 registerCallback: function(element) {
3696 if (element.type) {
3697 switch (element.type.toLowerCase()) {
3698 case 'checkbox':
3699 case 'radio':
3700 Event.observe(element, 'click', this.onElementEvent.bind(this));
3701 break;
3702 default:
3703 Event.observe(element, 'change', this.onElementEvent.bind(this));
3704 break;
3705 }
3706 }
3707 }
3708});
3709
3710Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
3711 getValue: function() {
3712 return Form.Element.getValue(this.element);
3713 }
3714});
3715
3716Form.EventObserver = Class.create(Abstract.EventObserver, {
3717 getValue: function() {
3718 return Form.serialize(this.element);
3719 }
3720});
3721if (!window.Event) var Event = { };
3722
3723Object.extend(Event, {
3724 KEY_BACKSPACE: 8,
3725 KEY_TAB: 9,
3726 KEY_RETURN: 13,
3727 KEY_ESC: 27,
3728 KEY_LEFT: 37,
3729 KEY_UP: 38,
3730 KEY_RIGHT: 39,
3731 KEY_DOWN: 40,
3732 KEY_DELETE: 46,
3733 KEY_HOME: 36,
3734 KEY_END: 35,
3735 KEY_PAGEUP: 33,
3736 KEY_PAGEDOWN: 34,
3737 KEY_INSERT: 45,
3738
3739 cache: { },
3740
3741 relatedTarget: function(event) {
3742 var element;
3743 switch(event.type) {
3744 case 'mouseover': element = event.fromElement; break;
3745 case 'mouseout': element = event.toElement; break;
3746 default: return null;
3747 }
3748 return Element.extend(element);
3749 }
3750});
3751
3752Event.Methods = (function() {
3753 var isButton;
3754
3755 if (Prototype.Browser.IE) {
3756 var buttonMap = { 0: 1, 1: 4, 2: 2 };
3757 isButton = function(event, code) {
3758 return event.button == buttonMap[code];
3759 };
3760
3761 } else if (Prototype.Browser.WebKit) {
3762 isButton = function(event, code) {
3763 switch (code) {
3764 case 0: return event.which == 1 && !event.metaKey;
3765 case 1: return event.which == 1 && event.metaKey;
3766 default: return false;
3767 }
3768 };
3769
3770 } else {
3771 isButton = function(event, code) {
3772 return event.which ? (event.which === code + 1) : (event.button === code);
3773 };
3774 }
3775
3776 return {
3777 isLeftClick: function(event) { return isButton(event, 0) },
3778 isMiddleClick: function(event) { return isButton(event, 1) },
3779 isRightClick: function(event) { return isButton(event, 2) },
3780
3781 element: function(event) {
3782 var node = Event.extend(event).target;
3783 return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
3784 },
3785
3786 findElement: function(event, expression) {
3787 var element = Event.element(event);
3788 if (!expression) return element;
3789 var elements = [element].concat(element.ancestors());
3790 return Selector.findElement(elements, expression, 0);
3791 },
3792
3793 pointer: function(event) {
3794 return {
3795 x: event.pageX || (event.clientX +
3796 (document.documentElement.scrollLeft || document.body.scrollLeft)),
3797 y: event.pageY || (event.clientY +
3798 (document.documentElement.scrollTop || document.body.scrollTop))
3799 };
3800 },
3801
3802 pointerX: function(event) { return Event.pointer(event).x },
3803 pointerY: function(event) { return Event.pointer(event).y },
3804
3805 stop: function(event) {
3806 Event.extend(event);
3807 event.preventDefault();
3808 event.stopPropagation();
3809 event.stopped = true;
3810 }
3811 };
3812})();
3813
3814Event.extend = (function() {
3815 var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
3816 m[name] = Event.Methods[name].methodize();
3817 return m;
3818 });
3819
3820 if (Prototype.Browser.IE) {
3821 Object.extend(methods, {
3822 stopPropagation: function() { this.cancelBubble = true },
3823 preventDefault: function() { this.returnValue = false },
3824 inspect: function() { return "[object Event]" }
3825 });
3826
3827 return function(event) {
3828 if (!event) return false;
3829 if (event._extendedByPrototype) return event;
3830
3831 event._extendedByPrototype = Prototype.emptyFunction;
3832 var pointer = Event.pointer(event);
3833 Object.extend(event, {
3834 target: event.srcElement,
3835 relatedTarget: Event.relatedTarget(event),
3836 pageX: pointer.x,
3837 pageY: pointer.y
3838 });
3839 return Object.extend(event, methods);
3840 };
3841
3842 } else {
3843 Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
3844 Object.extend(Event.prototype, methods);
3845 return Prototype.K;
3846 }
3847})();
3848
3849Object.extend(Event, (function() {
3850 var cache = Event.cache;
3851
3852 function getEventID(element) {
3853 if (element._eventID) return element._eventID;
3854 arguments.callee.id = arguments.callee.id || 1;
3855 return element._eventID = ++arguments.callee.id;
3856 }
3857
3858 function getDOMEventName(eventName) {
3859 if (eventName && eventName.include(':')) return "dataavailable";
3860 return eventName;
3861 }
3862
3863 function getCacheForID(id) {
3864 return cache[id] = cache[id] || { };
3865 }
3866
3867 function getWrappersForEventName(id, eventName) {
3868 var c = getCacheForID(id);
3869 return c[eventName] = c[eventName] || [];
3870 }
3871
3872 function createWrapper(element, eventName, handler) {
3873 var id = getEventID(element);
3874 var c = getWrappersForEventName(id, eventName);
3875 if (c.pluck("handler").include(handler)) return false;
3876
3877 var wrapper = function(event) {
3878 if (!Event || !Event.extend ||
3879 (event.eventName && event.eventName != eventName))
3880 return false;
3881
3882 Event.extend(event);
3883 handler.call(element, event)
3884 };
3885
3886 wrapper.handler = handler;
3887 c.push(wrapper);
3888 return wrapper;
3889 }
3890
3891 function findWrapper(id, eventName, handler) {
3892 var c = getWrappersForEventName(id, eventName);
3893 return c.find(function(wrapper) { return wrapper.handler == handler });
3894 }
3895
3896 function destroyWrapper(id, eventName, handler) {
3897 var c = getCacheForID(id);
3898 if (!c[eventName]) return false;
3899 c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
3900 }
3901
3902 function destroyCache() {
3903 for (var id in cache)
3904 for (var eventName in cache[id])
3905 cache[id][eventName] = null;
3906 }
3907
3908 if (window.attachEvent) {
3909 window.attachEvent("onunload", destroyCache);
3910 }
3911
3912 return {
3913 observe: function(element, eventName, handler) {
3914 element = $(element);
3915 var name = getDOMEventName(eventName);
3916
3917 var wrapper = createWrapper(element, eventName, handler);
3918 if (!wrapper) return element;
3919
3920 if (element.addEventListener) {
3921 element.addEventListener(name, wrapper, false);
3922 } else {
3923 element.attachEvent("on" + name, wrapper);
3924 }
3925
3926 return element;
3927 },
3928
3929 stopObserving: function(element, eventName, handler) {
3930 element = $(element);
3931 var id = getEventID(element), name = getDOMEventName(eventName);
3932
3933 if (!handler && eventName) {
3934 getWrappersForEventName(id, eventName).each(function(wrapper) {
3935 element.stopObserving(eventName, wrapper.handler);
3936 });
3937 return element;
3938
3939 } else if (!eventName) {
3940 Object.keys(getCacheForID(id)).each(function(eventName) {
3941 element.stopObserving(eventName);
3942 });
3943 return element;
3944 }
3945
3946 var wrapper = findWrapper(id, eventName, handler);
3947 if (!wrapper) return element;
3948
3949 if (element.removeEventListener) {
3950 element.removeEventListener(name, wrapper, false);
3951 } else {
3952 element.detachEvent("on" + name, wrapper);
3953 }
3954
3955 destroyWrapper(id, eventName, handler);
3956
3957 return element;
3958 },
3959
3960 fire: function(element, eventName, memo) {
3961 element = $(element);
3962 if (element == document && document.createEvent && !element.dispatchEvent)
3963 element = document.documentElement;
3964
3965 if (document.createEvent) {
3966 var event = document.createEvent("HTMLEvents");
3967 event.initEvent("dataavailable", true, true);
3968 } else {
3969 var event = document.createEventObject();
3970 event.eventType = "ondataavailable";
3971 }
3972
3973 event.eventName = eventName;
3974 event.memo = memo || { };
3975
3976 if (document.createEvent) {
3977 element.dispatchEvent(event);
3978 } else {
3979 element.fireEvent(event.eventType, event);
3980 }
3981
3982 return Event.extend(event);
3983 }
3984 };
3985})());
3986
3987Object.extend(Event, Event.Methods);
3988
3989Element.addMethods({
3990 fire: Event.fire,
3991 observe: Event.observe,
3992 stopObserving: Event.stopObserving
3993});
3994
3995Object.extend(document, {
3996 fire: Element.Methods.fire.methodize(),
3997 observe: Element.Methods.observe.methodize(),
3998 stopObserving: Element.Methods.stopObserving.methodize()
3999});
4000
4001(function() {
4002 /* Support for the DOMContentLoaded event is based on work by Dan Webb,
4003 Matthias Miller, Dean Edwards and John Resig. */
4004
4005 var timer, fired = false;
4006
4007 function fireContentLoadedEvent() {
4008 if (fired) return;
4009 if (timer) window.clearInterval(timer);
4010 document.fire("dom:loaded");
4011 fired = true;
4012 }
4013
4014 if (document.addEventListener) {
4015 if (Prototype.Browser.WebKit) {
4016 timer = window.setInterval(function() {
4017 if (/loaded|complete/.test(document.readyState))
4018 fireContentLoadedEvent();
4019 }, 0);
4020
4021 Event.observe(window, "load", fireContentLoadedEvent);
4022
4023 } else {
4024 document.addEventListener("DOMContentLoaded",
4025 fireContentLoadedEvent, false);
4026 }
4027
4028 } else {
4029 document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
4030 $("__onDOMContentLoaded").onreadystatechange = function() {
4031 if (this.readyState == "complete") {
4032 this.onreadystatechange = null;
4033 fireContentLoadedEvent();
4034 }
4035 };
4036 }
4037})();
4038/*------------------------------- DEPRECATED -------------------------------*/
4039
4040Hash.toQueryString = Object.toQueryString;
4041
4042var Toggle = { display: Element.toggle };
4043
4044Element.Methods.childOf = Element.Methods.descendantOf;
4045
4046var Insertion = {
4047 Before: function(element, content) {
4048 return Element.insert(element, {before:content});
4049 },
4050
4051 Top: function(element, content) {
4052 return Element.insert(element, {top:content});
4053 },
4054
4055 Bottom: function(element, content) {
4056 return Element.insert(element, {bottom:content});
4057 },
4058
4059 After: function(element, content) {
4060 return Element.insert(element, {after:content});
4061 }
4062};
4063
4064var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
4065
4066// This should be moved to script.aculo.us; notice the deprecated methods
4067// further below, that map to the newer Element methods.
4068var Position = {
4069 // set to true if needed, warning: firefox performance problems
4070 // NOT neeeded for page scrolling, only if draggable contained in
4071 // scrollable elements
4072 includeScrollOffsets: false,
4073
4074 // must be called before calling withinIncludingScrolloffset, every time the
4075 // page is scrolled
4076 prepare: function() {
4077 this.deltaX = window.pageXOffset
4078 || document.documentElement.scrollLeft
4079 || document.body.scrollLeft
4080 || 0;
4081 this.deltaY = window.pageYOffset
4082 || document.documentElement.scrollTop
4083 || document.body.scrollTop
4084 || 0;
4085 },
4086
4087 // caches x/y coordinate pair to use with overlap
4088 within: function(element, x, y) {
4089 if (this.includeScrollOffsets)
4090 return this.withinIncludingScrolloffsets(element, x, y);
4091 this.xcomp = x;
4092 this.ycomp = y;
4093 this.offset = Element.cumulativeOffset(element);
4094
4095 return (y >= this.offset[1] &&
4096 y < this.offset[1] + element.offsetHeight &&
4097 x >= this.offset[0] &&
4098 x < this.offset[0] + element.offsetWidth);
4099 },
4100
4101 withinIncludingScrolloffsets: function(element, x, y) {
4102 var offsetcache = Element.cumulativeScrollOffset(element);
4103
4104 this.xcomp = x + offsetcache[0] - this.deltaX;
4105 this.ycomp = y + offsetcache[1] - this.deltaY;
4106 this.offset = Element.cumulativeOffset(element);
4107
4108 return (this.ycomp >= this.offset[1] &&
4109 this.ycomp < this.offset[1] + element.offsetHeight &&
4110 this.xcomp >= this.offset[0] &&
4111 this.xcomp < this.offset[0] + element.offsetWidth);
4112 },
4113
4114 // within must be called directly before
4115 overlap: function(mode, element) {
4116 if (!mode) return 0;
4117 if (mode == 'vertical')
4118 return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
4119 element.offsetHeight;
4120 if (mode == 'horizontal')
4121 return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
4122 element.offsetWidth;
4123 },
4124
4125 // Deprecation layer -- use newer Element methods now (1.5.2).
4126
4127 cumulativeOffset: Element.Methods.cumulativeOffset,
4128
4129 positionedOffset: Element.Methods.positionedOffset,
4130
4131 absolutize: function(element) {
4132 Position.prepare();
4133 return Element.absolutize(element);
4134 },
4135
4136 relativize: function(element) {
4137 Position.prepare();
4138 return Element.relativize(element);
4139 },
4140
4141 realOffset: Element.Methods.cumulativeScrollOffset,
4142
4143 offsetParent: Element.Methods.getOffsetParent,
4144
4145 page: Element.Methods.viewportOffset,
4146
4147 clone: function(source, target, options) {
4148 options = options || { };
4149 return Element.clonePosition(target, source, options);
4150 }
4151};
4152
4153/*--------------------------------------------------------------------------*/
4154
4155if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
4156 function iter(name) {
4157 return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
4158 }
4159
4160 instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
4161 function(element, className) {
4162 className = className.toString().strip();
4163 var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
4164 return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
4165 } : function(element, className) {
4166 className = className.toString().strip();
4167 var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
4168 if (!classNames && !className) return elements;
4169
4170 var nodes = $(element).getElementsByTagName('*');
4171 className = ' ' + className + ' ';
4172
4173 for (var i = 0, child, cn; child = nodes[i]; i++) {
4174 if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
4175 (classNames && classNames.all(function(name) {
4176 return !name.toString().blank() && cn.include(' ' + name + ' ');
4177 }))))
4178 elements.push(Element.extend(child));
4179 }
4180 return elements;
4181 };
4182
4183 return function(className, parentElement) {
4184 return $(parentElement || document.body).getElementsByClassName(className);
4185 };
4186}(Element.Methods);
4187
4188/*--------------------------------------------------------------------------*/
4189
4190Element.ClassNames = Class.create();
4191Element.ClassNames.prototype = {
4192 initialize: function(element) {
4193 this.element = $(element);
4194 },
4195
4196 _each: function(iterator) {
4197 this.element.className.split(/\s+/).select(function(name) {
4198 return name.length > 0;
4199 })._each(iterator);
4200 },
4201
4202 set: function(className) {
4203 this.element.className = className;
4204 },
4205
4206 add: function(classNameToAdd) {
4207 if (this.include(classNameToAdd)) return;
4208 this.set($A(this).concat(classNameToAdd).join(' '));
4209 },
4210
4211 remove: function(classNameToRemove) {
4212 if (!this.include(classNameToRemove)) return;
4213 this.set($A(this).without(classNameToRemove).join(' '));
4214 },
4215
4216 toString: function() {
4217 return $A(this).join(' ');
4218 }
4219};
4220
4221Object.extend(Element.ClassNames.prototype, Enumerable);
4222
4223/*--------------------------------------------------------------------------*/
4224
4225Element.addMethods();
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