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[svn r47] saving progresswww.cinemassacre.com/new/?page_id=30
author rlm
date Sun, 31 Jan 2010 12:33:33 -0500
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45:bff96abdddfa 46:26c2b3ad21c7
1 /* Prototype JavaScript framework, version 1.4.0
2 * (c) 2005 Sam Stephenson <sam@conio.net>
3 *
4 * THIS FILE IS AUTOMATICALLY GENERATED. When sending patches, please diff
5 * against the source tree, available from the Prototype darcs repository.
6 *
7 * Prototype is freely distributable under the terms of an MIT-style license.
8 *
9 * For details, see the Prototype web site: http://prototype.conio.net/
10 *
11 /*--------------------------------------------------------------------------*/
12
13 var Prototype = {
14 Version: '1.4.0',
15 ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
16
17 emptyFunction: function() {},
18 K: function(x) {return x}
19 }
20
21 var Class = {
22 create: function() {
23 return function() {
24 this.initialize.apply(this, arguments);
25 }
26 }
27 }
28
29 var Abstract = new Object();
30
31 Object.extend = function(destination, source) {
32 for (property in source) {
33 destination[property] = source[property];
34 }
35 return destination;
36 }
37
38 Object.inspect = function(object) {
39 try {
40 if (object == undefined) return 'undefined';
41 if (object == null) return 'null';
42 return object.inspect ? object.inspect() : object.toString();
43 } catch (e) {
44 if (e instanceof RangeError) return '...';
45 throw e;
46 }
47 }
48
49 Function.prototype.bind = function() {
50 var __method = this, args = $A(arguments), object = args.shift();
51 return function() {
52 return __method.apply(object, args.concat($A(arguments)));
53 }
54 }
55
56 Function.prototype.bindAsEventListener = function(object) {
57 var __method = this;
58 return function(event) {
59 return __method.call(object, event || window.event);
60 }
61 }
62
63 Object.extend(Number.prototype, {
64 toColorPart: function() {
65 var digits = this.toString(16);
66 if (this < 16) return '0' + digits;
67 return digits;
68 },
69
70 succ: function() {
71 return this + 1;
72 },
73
74 times: function(iterator) {
75 $R(0, this, true).each(iterator);
76 return this;
77 }
78 });
79
80 var Try = {
81 these: function() {
82 var returnValue;
83
84 for (var i = 0; i < arguments.length; i++) {
85 var lambda = arguments[i];
86 try {
87 returnValue = lambda();
88 break;
89 } catch (e) {}
90 }
91
92 return returnValue;
93 }
94 }
95
96 /*--------------------------------------------------------------------------*/
97
98 var PeriodicalExecuter = Class.create();
99 PeriodicalExecuter.prototype = {
100 initialize: function(callback, frequency) {
101 this.callback = callback;
102 this.frequency = frequency;
103 this.currentlyExecuting = false;
104
105 this.registerCallback();
106 },
107
108 registerCallback: function() {
109 setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
110 },
111
112 onTimerEvent: function() {
113 if (!this.currentlyExecuting) {
114 try {
115 this.currentlyExecuting = true;
116 this.callback();
117 } finally {
118 this.currentlyExecuting = false;
119 }
120 }
121 }
122 }
123
124 /*--------------------------------------------------------------------------*/
125
126 function $() {
127 var elements = new Array();
128
129 for (var i = 0; i < arguments.length; i++) {
130 var element = arguments[i];
131 if (typeof element == 'string')
132 element = document.getElementById(element);
133
134 if (arguments.length == 1)
135 return element;
136
137 elements.push(element);
138 }
139
140 return elements;
141 }
142 Object.extend(String.prototype, {
143 stripTags: function() {
144 return this.replace(/<\/?[^>]+>/gi, '');
145 },
146
147 stripScripts: function() {
148 return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
149 },
150
151 extractScripts: function() {
152 var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
153 var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
154 return (this.match(matchAll) || []).map(function(scriptTag) {
155 return (scriptTag.match(matchOne) || ['', ''])[1];
156 });
157 },
158
159 evalScripts: function() {
160 return this.extractScripts().map(eval);
161 },
162
163 escapeHTML: function() {
164 var div = document.createElement('div');
165 var text = document.createTextNode(this);
166 div.appendChild(text);
167 return div.innerHTML;
168 },
169
170 unescapeHTML: function() {
171 var div = document.createElement('div');
172 div.innerHTML = this.stripTags();
173 return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
174 },
175
176 toQueryParams: function() {
177 var pairs = this.match(/^\??(.*)$/)[1].split('&');
178 return pairs.inject({}, function(params, pairString) {
179 var pair = pairString.split('=');
180 params[pair[0]] = pair[1];
181 return params;
182 });
183 },
184
185 toArray: function() {
186 return this.split('');
187 },
188
189 camelize: function() {
190 var oStringList = this.split('-');
191 if (oStringList.length == 1) return oStringList[0];
192
193 var camelizedString = this.indexOf('-') == 0
194 ? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
195 : oStringList[0];
196
197 for (var i = 1, len = oStringList.length; i < len; i++) {
198 var s = oStringList[i];
199 camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
200 }
201
202 return camelizedString;
203 },
204
205 inspect: function() {
206 return "'" + this.replace('\\', '\\\\').replace("'", '\\\'') + "'";
207 }
208 });
209
210 String.prototype.parseQuery = String.prototype.toQueryParams;
211
212 var $break = new Object();
213 var $continue = new Object();
214
215 var Enumerable = {
216 each: function(iterator) {
217 var index = 0;
218 try {
219 this._each(function(value) {
220 try {
221 iterator(value, index++);
222 } catch (e) {
223 if (e != $continue) throw e;
224 }
225 });
226 } catch (e) {
227 if (e != $break) throw e;
228 }
229 },
230
231 all: function(iterator) {
232 var result = true;
233 this.each(function(value, index) {
234 result = result && !!(iterator || Prototype.K)(value, index);
235 if (!result) throw $break;
236 });
237 return result;
238 },
239
240 any: function(iterator) {
241 var result = true;
242 this.each(function(value, index) {
243 if (result = !!(iterator || Prototype.K)(value, index))
244 throw $break;
245 });
246 return result;
247 },
248
249 collect: function(iterator) {
250 var results = [];
251 this.each(function(value, index) {
252 results.push(iterator(value, index));
253 });
254 return results;
255 },
256
257 detect: function (iterator) {
258 var result;
259 this.each(function(value, index) {
260 if (iterator(value, index)) {
261 result = value;
262 throw $break;
263 }
264 });
265 return result;
266 },
267
268 findAll: function(iterator) {
269 var results = [];
270 this.each(function(value, index) {
271 if (iterator(value, index))
272 results.push(value);
273 });
274 return results;
275 },
276
277 grep: function(pattern, iterator) {
278 var results = [];
279 this.each(function(value, index) {
280 var stringValue = value.toString();
281 if (stringValue.match(pattern))
282 results.push((iterator || Prototype.K)(value, index));
283 })
284 return results;
285 },
286
287 include: function(object) {
288 var found = false;
289 this.each(function(value) {
290 if (value == object) {
291 found = true;
292 throw $break;
293 }
294 });
295 return found;
296 },
297
298 inject: function(memo, iterator) {
299 this.each(function(value, index) {
300 memo = iterator(memo, value, index);
301 });
302 return memo;
303 },
304
305 invoke: function(method) {
306 var args = $A(arguments).slice(1);
307 return this.collect(function(value) {
308 return value[method].apply(value, args);
309 });
310 },
311
312 max: function(iterator) {
313 var result;
314 this.each(function(value, index) {
315 value = (iterator || Prototype.K)(value, index);
316 if (value >= (result || value))
317 result = value;
318 });
319 return result;
320 },
321
322 min: function(iterator) {
323 var result;
324 this.each(function(value, index) {
325 value = (iterator || Prototype.K)(value, index);
326 if (value <= (result || value))
327 result = value;
328 });
329 return result;
330 },
331
332 partition: function(iterator) {
333 var trues = [], falses = [];
334 this.each(function(value, index) {
335 ((iterator || Prototype.K)(value, index) ?
336 trues : falses).push(value);
337 });
338 return [trues, falses];
339 },
340
341 pluck: function(property) {
342 var results = [];
343 this.each(function(value, index) {
344 results.push(value[property]);
345 });
346 return results;
347 },
348
349 reject: function(iterator) {
350 var results = [];
351 this.each(function(value, index) {
352 if (!iterator(value, index))
353 results.push(value);
354 });
355 return results;
356 },
357
358 sortBy: function(iterator) {
359 return this.collect(function(value, index) {
360 return {value: value, criteria: iterator(value, index)};
361 }).sort(function(left, right) {
362 var a = left.criteria, b = right.criteria;
363 return a < b ? -1 : a > b ? 1 : 0;
364 }).pluck('value');
365 },
366
367 toArray: function() {
368 return this.collect(Prototype.K);
369 },
370
371 zip: function() {
372 var iterator = Prototype.K, args = $A(arguments);
373 if (typeof args.last() == 'function')
374 iterator = args.pop();
375
376 var collections = [this].concat(args).map($A);
377 return this.map(function(value, index) {
378 iterator(value = collections.pluck(index));
379 return value;
380 });
381 },
382
383 inspect: function() {
384 return '#<Enumerable:' + this.toArray().inspect() + '>';
385 }
386 }
387
388 Object.extend(Enumerable, {
389 map: Enumerable.collect,
390 find: Enumerable.detect,
391 select: Enumerable.findAll,
392 member: Enumerable.include,
393 entries: Enumerable.toArray
394 });
395 var $A = Array.from = function(iterable) {
396 if (!iterable) return [];
397 if (iterable.toArray) {
398 return iterable.toArray();
399 } else {
400 var results = [];
401 for (var i = 0; i < iterable.length; i++)
402 results.push(iterable[i]);
403 return results;
404 }
405 }
406
407 Object.extend(Array.prototype, Enumerable);
408
409 Array.prototype._reverse = Array.prototype.reverse;
410
411 Object.extend(Array.prototype, {
412 _each: function(iterator) {
413 for (var i = 0; i < this.length; i++)
414 iterator(this[i]);
415 },
416
417 clear: function() {
418 this.length = 0;
419 return this;
420 },
421
422 first: function() {
423 return this[0];
424 },
425
426 last: function() {
427 return this[this.length - 1];
428 },
429
430 compact: function() {
431 return this.select(function(value) {
432 return value != undefined || value != null;
433 });
434 },
435
436 flatten: function() {
437 return this.inject([], function(array, value) {
438 return array.concat(value.constructor == Array ?
439 value.flatten() : [value]);
440 });
441 },
442
443 without: function() {
444 var values = $A(arguments);
445 return this.select(function(value) {
446 return !values.include(value);
447 });
448 },
449
450 indexOf: function(object) {
451 for (var i = 0; i < this.length; i++)
452 if (this[i] == object) return i;
453 return -1;
454 },
455
456 reverse: function(inline) {
457 return (inline !== false ? this : this.toArray())._reverse();
458 },
459
460 shift: function() {
461 var result = this[0];
462 for (var i = 0; i < this.length - 1; i++)
463 this[i] = this[i + 1];
464 this.length--;
465 return result;
466 },
467
468 inspect: function() {
469 return '[' + this.map(Object.inspect).join(', ') + ']';
470 }
471 });
472 var Hash = {
473 _each: function(iterator) {
474 for (key in this) {
475 var value = this[key];
476 if (typeof value == 'function') continue;
477
478 var pair = [key, value];
479 pair.key = key;
480 pair.value = value;
481 iterator(pair);
482 }
483 },
484
485 keys: function() {
486 return this.pluck('key');
487 },
488
489 values: function() {
490 return this.pluck('value');
491 },
492
493 merge: function(hash) {
494 return $H(hash).inject($H(this), function(mergedHash, pair) {
495 mergedHash[pair.key] = pair.value;
496 return mergedHash;
497 });
498 },
499
500 toQueryString: function() {
501 return this.map(function(pair) {
502 return pair.map(encodeURIComponent).join('=');
503 }).join('&');
504 },
505
506 inspect: function() {
507 return '#<Hash:{' + this.map(function(pair) {
508 return pair.map(Object.inspect).join(': ');
509 }).join(', ') + '}>';
510 }
511 }
512
513 function $H(object) {
514 var hash = Object.extend({}, object || {});
515 Object.extend(hash, Enumerable);
516 Object.extend(hash, Hash);
517 return hash;
518 }
519 ObjectRange = Class.create();
520 Object.extend(ObjectRange.prototype, Enumerable);
521 Object.extend(ObjectRange.prototype, {
522 initialize: function(start, end, exclusive) {
523 this.start = start;
524 this.end = end;
525 this.exclusive = exclusive;
526 },
527
528 _each: function(iterator) {
529 var value = this.start;
530 do {
531 iterator(value);
532 value = value.succ();
533 } while (this.include(value));
534 },
535
536 include: function(value) {
537 if (value < this.start)
538 return false;
539 if (this.exclusive)
540 return value < this.end;
541 return value <= this.end;
542 }
543 });
544
545 var $R = function(start, end, exclusive) {
546 return new ObjectRange(start, end, exclusive);
547 }
548
549 var Ajax = {
550 getTransport: function() {
551 return Try.these(
552 function() {return new ActiveXObject('Msxml2.XMLHTTP')},
553 function() {return new ActiveXObject('Microsoft.XMLHTTP')},
554 function() {return new XMLHttpRequest()}
555 ) || false;
556 },
557
558 activeRequestCount: 0
559 }
560
561 Ajax.Responders = {
562 responders: [],
563
564 _each: function(iterator) {
565 this.responders._each(iterator);
566 },
567
568 register: function(responderToAdd) {
569 if (!this.include(responderToAdd))
570 this.responders.push(responderToAdd);
571 },
572
573 unregister: function(responderToRemove) {
574 this.responders = this.responders.without(responderToRemove);
575 },
576
577 dispatch: function(callback, request, transport, json) {
578 this.each(function(responder) {
579 if (responder[callback] && typeof responder[callback] == 'function') {
580 try {
581 responder[callback].apply(responder, [request, transport, json]);
582 } catch (e) {}
583 }
584 });
585 }
586 };
587
588 Object.extend(Ajax.Responders, Enumerable);
589
590 Ajax.Responders.register({
591 onCreate: function() {
592 Ajax.activeRequestCount++;
593 },
594
595 onComplete: function() {
596 Ajax.activeRequestCount--;
597 }
598 });
599
600 Ajax.Base = function() {};
601 Ajax.Base.prototype = {
602 setOptions: function(options) {
603 this.options = {
604 method: 'post',
605 asynchronous: true,
606 parameters: ''
607 }
608 Object.extend(this.options, options || {});
609 },
610
611 responseIsSuccess: function() {
612 return this.transport.status == undefined
613 || this.transport.status == 0
614 || (this.transport.status >= 200 && this.transport.status < 300);
615 },
616
617 responseIsFailure: function() {
618 return !this.responseIsSuccess();
619 }
620 }
621
622 Ajax.Request = Class.create();
623 Ajax.Request.Events =
624 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
625
626 Ajax.Request.prototype = Object.extend(new Ajax.Base(), {
627 initialize: function(url, options) {
628 this.transport = Ajax.getTransport();
629 this.setOptions(options);
630 this.request(url);
631 },
632
633 request: function(url) {
634 var parameters = this.options.parameters || '';
635 if (parameters.length > 0) parameters += '&_=';
636
637 try {
638 this.url = url;
639 if (this.options.method == 'get' && parameters.length > 0)
640 this.url += (this.url.match(/\?/) ? '&' : '?') + parameters;
641
642 Ajax.Responders.dispatch('onCreate', this, this.transport);
643
644 this.transport.open(this.options.method, this.url,
645 this.options.asynchronous);
646
647 if (this.options.asynchronous) {
648 this.transport.onreadystatechange = this.onStateChange.bind(this);
649 setTimeout((function() {this.respondToReadyState(1)}).bind(this), 10);
650 }
651
652 this.setRequestHeaders();
653
654 var body = this.options.postBody ? this.options.postBody : parameters;
655 this.transport.send(this.options.method == 'post' ? body : null);
656
657 } catch (e) {
658 this.dispatchException(e);
659 }
660 },
661
662 setRequestHeaders: function() {
663 var requestHeaders =
664 ['X-Requested-With', 'XMLHttpRequest',
665 'X-Prototype-Version', Prototype.Version];
666
667 if (this.options.method == 'post') {
668 requestHeaders.push('Content-type',
669 'application/x-www-form-urlencoded');
670
671 /* Force "Connection: close" for Mozilla browsers to work around
672 * a bug where XMLHttpReqeuest sends an incorrect Content-length
673 * header. See Mozilla Bugzilla #246651.
674 */
675 if (this.transport.overrideMimeType)
676 requestHeaders.push('Connection', 'close');
677 }
678
679 if (this.options.requestHeaders)
680 requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);
681
682 for (var i = 0; i < requestHeaders.length; i += 2)
683 this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]);
684 },
685
686 onStateChange: function() {
687 var readyState = this.transport.readyState;
688 if (readyState != 1)
689 this.respondToReadyState(this.transport.readyState);
690 },
691
692 header: function(name) {
693 try {
694 return this.transport.getResponseHeader(name);
695 } catch (e) {}
696 },
697
698 evalJSON: function() {
699 try {
700 return eval(this.header('X-JSON'));
701 } catch (e) {}
702 },
703
704 evalResponse: function() {
705 try {
706 return eval(this.transport.responseText);
707 } catch (e) {
708 this.dispatchException(e);
709 }
710 },
711
712 respondToReadyState: function(readyState) {
713 var event = Ajax.Request.Events[readyState];
714 var transport = this.transport, json = this.evalJSON();
715
716 if (event == 'Complete') {
717 try {
718 (this.options['on' + this.transport.status]
719 || this.options['on' + (this.responseIsSuccess() ? 'Success' : 'Failure')]
720 || Prototype.emptyFunction)(transport, json);
721 } catch (e) {
722 this.dispatchException(e);
723 }
724
725 if ((this.header('Content-type') || '').match(/^text\/javascript/i))
726 this.evalResponse();
727 }
728
729 try {
730 (this.options['on' + event] || Prototype.emptyFunction)(transport, json);
731 Ajax.Responders.dispatch('on' + event, this, transport, json);
732 } catch (e) {
733 this.dispatchException(e);
734 }
735
736 /* Avoid memory leak in MSIE: clean up the oncomplete event handler */
737 if (event == 'Complete')
738 this.transport.onreadystatechange = Prototype.emptyFunction;
739 },
740
741 dispatchException: function(exception) {
742 (this.options.onException || Prototype.emptyFunction)(this, exception);
743 Ajax.Responders.dispatch('onException', this, exception);
744 }
745 });
746
747 Ajax.Updater = Class.create();
748
749 Object.extend(Object.extend(Ajax.Updater.prototype, Ajax.Request.prototype), {
750 initialize: function(container, url, options) {
751 this.containers = {
752 success: container.success ? $(container.success) : $(container),
753 failure: container.failure ? $(container.failure) :
754 (container.success ? null : $(container))
755 }
756
757 this.transport = Ajax.getTransport();
758 this.setOptions(options);
759
760 var onComplete = this.options.onComplete || Prototype.emptyFunction;
761 this.options.onComplete = (function(transport, object) {
762 this.updateContent();
763 onComplete(transport, object);
764 }).bind(this);
765
766 this.request(url);
767 },
768
769 updateContent: function() {
770 var receiver = this.responseIsSuccess() ?
771 this.containers.success : this.containers.failure;
772 var response = this.transport.responseText;
773
774 if (!this.options.evalScripts)
775 response = response.stripScripts();
776
777 if (receiver) {
778 if (this.options.insertion) {
779 new this.options.insertion(receiver, response);
780 } else {
781 Element.update(receiver, response);
782 }
783 }
784
785 if (this.responseIsSuccess()) {
786 if (this.onComplete)
787 setTimeout(this.onComplete.bind(this), 10);
788 }
789 }
790 });
791
792 Ajax.PeriodicalUpdater = Class.create();
793 Ajax.PeriodicalUpdater.prototype = Object.extend(new Ajax.Base(), {
794 initialize: function(container, url, options) {
795 this.setOptions(options);
796 this.onComplete = this.options.onComplete;
797
798 this.frequency = (this.options.frequency || 2);
799 this.decay = (this.options.decay || 1);
800
801 this.updater = {};
802 this.container = container;
803 this.url = url;
804
805 this.start();
806 },
807
808 start: function() {
809 this.options.onComplete = this.updateComplete.bind(this);
810 this.onTimerEvent();
811 },
812
813 stop: function() {
814 this.updater.onComplete = undefined;
815 clearTimeout(this.timer);
816 (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
817 },
818
819 updateComplete: function(request) {
820 if (this.options.decay) {
821 this.decay = (request.responseText == this.lastText ?
822 this.decay * this.options.decay : 1);
823
824 this.lastText = request.responseText;
825 }
826 this.timer = setTimeout(this.onTimerEvent.bind(this),
827 this.decay * this.frequency * 1000);
828 },
829
830 onTimerEvent: function() {
831 this.updater = new Ajax.Updater(this.container, this.url, this.options);
832 }
833 });
834 document.getElementsByClassName = function(className, parentElement) {
835 var children = ($(parentElement) || document.body).getElementsByTagName('*');
836 return $A(children).inject([], function(elements, child) {
837 if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)")))
838 elements.push(child);
839 return elements;
840 });
841 }
842
843 /*--------------------------------------------------------------------------*/
844
845 if (!window.Element) {
846 var Element = new Object();
847 }
848
849 Object.extend(Element, {
850 visible: function(element) {
851 return $(element).style.display != 'none';
852 },
853
854 toggle: function() {
855 for (var i = 0; i < arguments.length; i++) {
856 var element = $(arguments[i]);
857 Element[Element.visible(element) ? 'hide' : 'show'](element);
858 }
859 },
860
861 hide: function() {
862 for (var i = 0; i < arguments.length; i++) {
863 var element = $(arguments[i]);
864 element.style.display = 'none';
865 }
866 },
867
868 show: function() {
869 for (var i = 0; i < arguments.length; i++) {
870 var element = $(arguments[i]);
871 element.style.display = '';
872 }
873 },
874
875 remove: function(element) {
876 element = $(element);
877 element.parentNode.removeChild(element);
878 },
879
880 update: function(element, html) {
881 $(element).innerHTML = html.stripScripts();
882 setTimeout(function() {html.evalScripts()}, 10);
883 },
884
885 getHeight: function(element) {
886 element = $(element);
887 return element.offsetHeight;
888 },
889
890 classNames: function(element) {
891 return new Element.ClassNames(element);
892 },
893
894 hasClassName: function(element, className) {
895 if (!(element = $(element))) return;
896 return Element.classNames(element).include(className);
897 },
898
899 addClassName: function(element, className) {
900 if (!(element = $(element))) return;
901 return Element.classNames(element).add(className);
902 },
903
904 removeClassName: function(element, className) {
905 if (!(element = $(element))) return;
906 return Element.classNames(element).remove(className);
907 },
908
909 // removes whitespace-only text node children
910 cleanWhitespace: function(element) {
911 element = $(element);
912 for (var i = 0; i < element.childNodes.length; i++) {
913 var node = element.childNodes[i];
914 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
915 Element.remove(node);
916 }
917 },
918
919 empty: function(element) {
920 return $(element).innerHTML.match(/^\s*$/);
921 },
922
923 scrollTo: function(element) {
924 element = $(element);
925 var x = element.x ? element.x : element.offsetLeft,
926 y = element.y ? element.y : element.offsetTop;
927 window.scrollTo(x, y);
928 },
929
930 getStyle: function(element, style) {
931 element = $(element);
932 var value = element.style[style.camelize()];
933 if (!value) {
934 if (document.defaultView && document.defaultView.getComputedStyle) {
935 var css = document.defaultView.getComputedStyle(element, null);
936 value = css ? css.getPropertyValue(style) : null;
937 } else if (element.currentStyle) {
938 value = element.currentStyle[style.camelize()];
939 }
940 }
941
942 if (window.opera && ['left', 'top', 'right', 'bottom'].include(style))
943 if (Element.getStyle(element, 'position') == 'static') value = 'auto';
944
945 return value == 'auto' ? null : value;
946 },
947
948 setStyle: function(element, style) {
949 element = $(element);
950 for (name in style)
951 element.style[name.camelize()] = style[name];
952 },
953
954 getDimensions: function(element) {
955 element = $(element);
956 if (Element.getStyle(element, 'display') != 'none')
957 return {width: element.offsetWidth, height: element.offsetHeight};
958
959 // All *Width and *Height properties give 0 on elements with display none,
960 // so enable the element temporarily
961 var els = element.style;
962 var originalVisibility = els.visibility;
963 var originalPosition = els.position;
964 els.visibility = 'hidden';
965 els.position = 'absolute';
966 els.display = '';
967 var originalWidth = element.clientWidth;
968 var originalHeight = element.clientHeight;
969 els.display = 'none';
970 els.position = originalPosition;
971 els.visibility = originalVisibility;
972 return {width: originalWidth, height: originalHeight};
973 },
974
975 makePositioned: function(element) {
976 element = $(element);
977 var pos = Element.getStyle(element, 'position');
978 if (pos == 'static' || !pos) {
979 element._madePositioned = true;
980 element.style.position = 'relative';
981 // Opera returns the offset relative to the positioning context, when an
982 // element is position relative but top and left have not been defined
983 if (window.opera) {
984 element.style.top = 0;
985 element.style.left = 0;
986 }
987 }
988 },
989
990 undoPositioned: function(element) {
991 element = $(element);
992 if (element._madePositioned) {
993 element._madePositioned = undefined;
994 element.style.position =
995 element.style.top =
996 element.style.left =
997 element.style.bottom =
998 element.style.right = '';
999 }
1000 },
1001
1002 makeClipping: function(element) {
1003 element = $(element);
1004 if (element._overflow) return;
1005 element._overflow = element.style.overflow;
1006 if ((Element.getStyle(element, 'overflow') || 'visible') != 'hidden')
1007 element.style.overflow = 'hidden';
1008 },
1009
1010 undoClipping: function(element) {
1011 element = $(element);
1012 if (element._overflow) return;
1013 element.style.overflow = element._overflow;
1014 element._overflow = undefined;
1015 }
1016 });
1017
1018 var Toggle = new Object();
1019 Toggle.display = Element.toggle;
1020
1021 /*--------------------------------------------------------------------------*/
1022
1023 Abstract.Insertion = function(adjacency) {
1024 this.adjacency = adjacency;
1025 }
1026
1027 Abstract.Insertion.prototype = {
1028 initialize: function(element, content) {
1029 this.element = $(element);
1030 this.content = content.stripScripts();
1031
1032 if (this.adjacency && this.element.insertAdjacentHTML) {
1033 try {
1034 this.element.insertAdjacentHTML(this.adjacency, this.content);
1035 } catch (e) {
1036 if (this.element.tagName.toLowerCase() == 'tbody') {
1037 this.insertContent(this.contentFromAnonymousTable());
1038 } else {
1039 throw e;
1040 }
1041 }
1042 } else {
1043 this.range = this.element.ownerDocument.createRange();
1044 if (this.initializeRange) this.initializeRange();
1045 this.insertContent([this.range.createContextualFragment(this.content)]);
1046 }
1047
1048 setTimeout(function() {content.evalScripts()}, 10);
1049 },
1050
1051 contentFromAnonymousTable: function() {
1052 var div = document.createElement('div');
1053 div.innerHTML = '<table><tbody>' + this.content + '</tbody></table>';
1054 return $A(div.childNodes[0].childNodes[0].childNodes);
1055 }
1056 }
1057
1058 var Insertion = new Object();
1059
1060 Insertion.Before = Class.create();
1061 Insertion.Before.prototype = Object.extend(new Abstract.Insertion('beforeBegin'), {
1062 initializeRange: function() {
1063 this.range.setStartBefore(this.element);
1064 },
1065
1066 insertContent: function(fragments) {
1067 fragments.each((function(fragment) {
1068 this.element.parentNode.insertBefore(fragment, this.element);
1069 }).bind(this));
1070 }
1071 });
1072
1073 Insertion.Top = Class.create();
1074 Insertion.Top.prototype = Object.extend(new Abstract.Insertion('afterBegin'), {
1075 initializeRange: function() {
1076 this.range.selectNodeContents(this.element);
1077 this.range.collapse(true);
1078 },
1079
1080 insertContent: function(fragments) {
1081 fragments.reverse(false).each((function(fragment) {
1082 this.element.insertBefore(fragment, this.element.firstChild);
1083 }).bind(this));
1084 }
1085 });
1086
1087 Insertion.Bottom = Class.create();
1088 Insertion.Bottom.prototype = Object.extend(new Abstract.Insertion('beforeEnd'), {
1089 initializeRange: function() {
1090 this.range.selectNodeContents(this.element);
1091 this.range.collapse(this.element);
1092 },
1093
1094 insertContent: function(fragments) {
1095 fragments.each((function(fragment) {
1096 this.element.appendChild(fragment);
1097 }).bind(this));
1098 }
1099 });
1100
1101 Insertion.After = Class.create();
1102 Insertion.After.prototype = Object.extend(new Abstract.Insertion('afterEnd'), {
1103 initializeRange: function() {
1104 this.range.setStartAfter(this.element);
1105 },
1106
1107 insertContent: function(fragments) {
1108 fragments.each((function(fragment) {
1109 this.element.parentNode.insertBefore(fragment,
1110 this.element.nextSibling);
1111 }).bind(this));
1112 }
1113 });
1114
1115 /*--------------------------------------------------------------------------*/
1116
1117 Element.ClassNames = Class.create();
1118 Element.ClassNames.prototype = {
1119 initialize: function(element) {
1120 this.element = $(element);
1121 },
1122
1123 _each: function(iterator) {
1124 this.element.className.split(/\s+/).select(function(name) {
1125 return name.length > 0;
1126 })._each(iterator);
1127 },
1128
1129 set: function(className) {
1130 this.element.className = className;
1131 },
1132
1133 add: function(classNameToAdd) {
1134 if (this.include(classNameToAdd)) return;
1135 this.set(this.toArray().concat(classNameToAdd).join(' '));
1136 },
1137
1138 remove: function(classNameToRemove) {
1139 if (!this.include(classNameToRemove)) return;
1140 this.set(this.select(function(className) {
1141 return className != classNameToRemove;
1142 }).join(' '));
1143 },
1144
1145 toString: function() {
1146 return this.toArray().join(' ');
1147 }
1148 }
1149
1150 Object.extend(Element.ClassNames.prototype, Enumerable);
1151 var Field = {
1152 clear: function() {
1153 for (var i = 0; i < arguments.length; i++)
1154 $(arguments[i]).value = '';
1155 },
1156
1157 focus: function(element) {
1158 $(element).focus();
1159 },
1160
1161 present: function() {
1162 for (var i = 0; i < arguments.length; i++)
1163 if ($(arguments[i]).value == '') return false;
1164 return true;
1165 },
1166
1167 select: function(element) {
1168 $(element).select();
1169 },
1170
1171 activate: function(element) {
1172 element = $(element);
1173 element.focus();
1174 if (element.select)
1175 element.select();
1176 }
1177 }
1178
1179 /*--------------------------------------------------------------------------*/
1180
1181 var Form = {
1182 serialize: function(form) {
1183 var elements = Form.getElements($(form));
1184 var queryComponents = new Array();
1185
1186 for (var i = 0; i < elements.length; i++) {
1187 var queryComponent = Form.Element.serialize(elements[i]);
1188 if (queryComponent)
1189 queryComponents.push(queryComponent);
1190 }
1191
1192 return queryComponents.join('&');
1193 },
1194
1195 getElements: function(form) {
1196 form = $(form);
1197 var elements = new Array();
1198
1199 for (tagName in Form.Element.Serializers) {
1200 var tagElements = form.getElementsByTagName(tagName);
1201 for (var j = 0; j < tagElements.length; j++)
1202 elements.push(tagElements[j]);
1203 }
1204 return elements;
1205 },
1206
1207 getInputs: function(form, typeName, name) {
1208 form = $(form);
1209 var inputs = form.getElementsByTagName('input');
1210
1211 if (!typeName && !name)
1212 return inputs;
1213
1214 var matchingInputs = new Array();
1215 for (var i = 0; i < inputs.length; i++) {
1216 var input = inputs[i];
1217 if ((typeName && input.type != typeName) ||
1218 (name && input.name != name))
1219 continue;
1220 matchingInputs.push(input);
1221 }
1222
1223 return matchingInputs;
1224 },
1225
1226 disable: function(form) {
1227 var elements = Form.getElements(form);
1228 for (var i = 0; i < elements.length; i++) {
1229 var element = elements[i];
1230 element.blur();
1231 element.disabled = 'true';
1232 }
1233 },
1234
1235 enable: function(form) {
1236 var elements = Form.getElements(form);
1237 for (var i = 0; i < elements.length; i++) {
1238 var element = elements[i];
1239 element.disabled = '';
1240 }
1241 },
1242
1243 findFirstElement: function(form) {
1244 return Form.getElements(form).find(function(element) {
1245 return element.type != 'hidden' && !element.disabled &&
1246 ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
1247 });
1248 },
1249
1250 focusFirstElement: function(form) {
1251 Field.activate(Form.findFirstElement(form));
1252 },
1253
1254 reset: function(form) {
1255 $(form).reset();
1256 }
1257 }
1258
1259 Form.Element = {
1260 serialize: function(element) {
1261 element = $(element);
1262 var method = element.tagName.toLowerCase();
1263 var parameter = Form.Element.Serializers[method](element);
1264
1265 if (parameter) {
1266 var key = encodeURIComponent(parameter[0]);
1267 if (key.length == 0) return;
1268
1269 if (parameter[1].constructor != Array)
1270 parameter[1] = [parameter[1]];
1271
1272 return parameter[1].map(function(value) {
1273 return key + '=' + encodeURIComponent(value);
1274 }).join('&');
1275 }
1276 },
1277
1278 getValue: function(element) {
1279 element = $(element);
1280 var method = element.tagName.toLowerCase();
1281 var parameter = Form.Element.Serializers[method](element);
1282
1283 if (parameter)
1284 return parameter[1];
1285 }
1286 }
1287
1288 Form.Element.Serializers = {
1289 input: function(element) {
1290 switch (element.type.toLowerCase()) {
1291 case 'submit':
1292 case 'hidden':
1293 case 'password':
1294 case 'text':
1295 return Form.Element.Serializers.textarea(element);
1296 case 'checkbox':
1297 case 'radio':
1298 return Form.Element.Serializers.inputSelector(element);
1299 }
1300 return false;
1301 },
1302
1303 inputSelector: function(element) {
1304 if (element.checked)
1305 return [element.name, element.value];
1306 },
1307
1308 textarea: function(element) {
1309 return [element.name, element.value];
1310 },
1311
1312 select: function(element) {
1313 return Form.Element.Serializers[element.type == 'select-one' ?
1314 'selectOne' : 'selectMany'](element);
1315 },
1316
1317 selectOne: function(element) {
1318 var value = '', opt, index = element.selectedIndex;
1319 if (index >= 0) {
1320 opt = element.options[index];
1321 value = opt.value;
1322 if (!value && !('value' in opt))
1323 value = opt.text;
1324 }
1325 return [element.name, value];
1326 },
1327
1328 selectMany: function(element) {
1329 var value = new Array();
1330 for (var i = 0; i < element.length; i++) {
1331 var opt = element.options[i];
1332 if (opt.selected) {
1333 var optValue = opt.value;
1334 if (!optValue && !('value' in opt))
1335 optValue = opt.text;
1336 value.push(optValue);
1337 }
1338 }
1339 return [element.name, value];
1340 }
1341 }
1342
1343 /*--------------------------------------------------------------------------*/
1344
1345 var $F = Form.Element.getValue;
1346
1347 /*--------------------------------------------------------------------------*/
1348
1349 Abstract.TimedObserver = function() {}
1350 Abstract.TimedObserver.prototype = {
1351 initialize: function(element, frequency, callback) {
1352 this.frequency = frequency;
1353 this.element = $(element);
1354 this.callback = callback;
1355
1356 this.lastValue = this.getValue();
1357 this.registerCallback();
1358 },
1359
1360 registerCallback: function() {
1361 setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
1362 },
1363
1364 onTimerEvent: function() {
1365 var value = this.getValue();
1366 if (this.lastValue != value) {
1367 this.callback(this.element, value);
1368 this.lastValue = value;
1369 }
1370 }
1371 }
1372
1373 Form.Element.Observer = Class.create();
1374 Form.Element.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
1375 getValue: function() {
1376 return Form.Element.getValue(this.element);
1377 }
1378 });
1379
1380 Form.Observer = Class.create();
1381 Form.Observer.prototype = Object.extend(new Abstract.TimedObserver(), {
1382 getValue: function() {
1383 return Form.serialize(this.element);
1384 }
1385 });
1386
1387 /*--------------------------------------------------------------------------*/
1388
1389 Abstract.EventObserver = function() {}
1390 Abstract.EventObserver.prototype = {
1391 initialize: function(element, callback) {
1392 this.element = $(element);
1393 this.callback = callback;
1394
1395 this.lastValue = this.getValue();
1396 if (this.element.tagName.toLowerCase() == 'form')
1397 this.registerFormCallbacks();
1398 else
1399 this.registerCallback(this.element);
1400 },
1401
1402 onElementEvent: function() {
1403 var value = this.getValue();
1404 if (this.lastValue != value) {
1405 this.callback(this.element, value);
1406 this.lastValue = value;
1407 }
1408 },
1409
1410 registerFormCallbacks: function() {
1411 var elements = Form.getElements(this.element);
1412 for (var i = 0; i < elements.length; i++)
1413 this.registerCallback(elements[i]);
1414 },
1415
1416 registerCallback: function(element) {
1417 if (element.type) {
1418 switch (element.type.toLowerCase()) {
1419 case 'checkbox':
1420 case 'radio':
1421 Event.observe(element, 'click', this.onElementEvent.bind(this));
1422 break;
1423 case 'password':
1424 case 'text':
1425 case 'textarea':
1426 case 'select-one':
1427 case 'select-multiple':
1428 Event.observe(element, 'change', this.onElementEvent.bind(this));
1429 break;
1430 }
1431 }
1432 }
1433 }
1434
1435 Form.Element.EventObserver = Class.create();
1436 Form.Element.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
1437 getValue: function() {
1438 return Form.Element.getValue(this.element);
1439 }
1440 });
1441
1442 Form.EventObserver = Class.create();
1443 Form.EventObserver.prototype = Object.extend(new Abstract.EventObserver(), {
1444 getValue: function() {
1445 return Form.serialize(this.element);
1446 }
1447 });
1448 if (!window.Event) {
1449 var Event = new Object();
1450 }
1451
1452 Object.extend(Event, {
1453 KEY_BACKSPACE: 8,
1454 KEY_TAB: 9,
1455 KEY_RETURN: 13,
1456 KEY_ESC: 27,
1457 KEY_LEFT: 37,
1458 KEY_UP: 38,
1459 KEY_RIGHT: 39,
1460 KEY_DOWN: 40,
1461 KEY_DELETE: 46,
1462
1463 element: function(event) {
1464 return event.target || event.srcElement;
1465 },
1466
1467 isLeftClick: function(event) {
1468 return (((event.which) && (event.which == 1)) ||
1469 ((event.button) && (event.button == 1)));
1470 },
1471
1472 pointerX: function(event) {
1473 return event.pageX || (event.clientX +
1474 (document.documentElement.scrollLeft || document.body.scrollLeft));
1475 },
1476
1477 pointerY: function(event) {
1478 return event.pageY || (event.clientY +
1479 (document.documentElement.scrollTop || document.body.scrollTop));
1480 },
1481
1482 stop: function(event) {
1483 if (event.preventDefault) {
1484 event.preventDefault();
1485 event.stopPropagation();
1486 } else {
1487 event.returnValue = false;
1488 event.cancelBubble = true;
1489 }
1490 },
1491
1492 // find the first node with the given tagName, starting from the
1493 // node the event was triggered on; traverses the DOM upwards
1494 findElement: function(event, tagName) {
1495 var element = Event.element(event);
1496 while (element.parentNode && (!element.tagName ||
1497 (element.tagName.toUpperCase() != tagName.toUpperCase())))
1498 element = element.parentNode;
1499 return element;
1500 },
1501
1502 observers: false,
1503
1504 _observeAndCache: function(element, name, observer, useCapture) {
1505 if (!this.observers) this.observers = [];
1506 if (element.addEventListener) {
1507 this.observers.push([element, name, observer, useCapture]);
1508 element.addEventListener(name, observer, useCapture);
1509 } else if (element.attachEvent) {
1510 this.observers.push([element, name, observer, useCapture]);
1511 element.attachEvent('on' + name, observer);
1512 }
1513 },
1514
1515 unloadCache: function() {
1516 if (!Event.observers) return;
1517 for (var i = 0; i < Event.observers.length; i++) {
1518 Event.stopObserving.apply(this, Event.observers[i]);
1519 Event.observers[i][0] = null;
1520 }
1521 Event.observers = false;
1522 },
1523
1524 observe: function(element, name, observer, useCapture) {
1525 var element = $(element);
1526 useCapture = useCapture || false;
1527
1528 if (name == 'keypress' &&
1529 (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
1530 || element.attachEvent))
1531 name = 'keydown';
1532
1533 this._observeAndCache(element, name, observer, useCapture);
1534 },
1535
1536 stopObserving: function(element, name, observer, useCapture) {
1537 var element = $(element);
1538 useCapture = useCapture || false;
1539
1540 if (name == 'keypress' &&
1541 (navigator.appVersion.match(/Konqueror|Safari|KHTML/)
1542 || element.detachEvent))
1543 name = 'keydown';
1544
1545 if (element.removeEventListener) {
1546 element.removeEventListener(name, observer, useCapture);
1547 } else if (element.detachEvent) {
1548 element.detachEvent('on' + name, observer);
1549 }
1550 }
1551 });
1552
1553 /* prevent memory leaks in IE */
1554 Event.observe(window, 'unload', Event.unloadCache, false);
1555 var Position = {
1556 // set to true if needed, warning: firefox performance problems
1557 // NOT neeeded for page scrolling, only if draggable contained in
1558 // scrollable elements
1559 includeScrollOffsets: false,
1560
1561 // must be called before calling withinIncludingScrolloffset, every time the
1562 // page is scrolled
1563 prepare: function() {
1564 this.deltaX = window.pageXOffset
1565 || document.documentElement.scrollLeft
1566 || document.body.scrollLeft
1567 || 0;
1568 this.deltaY = window.pageYOffset
1569 || document.documentElement.scrollTop
1570 || document.body.scrollTop
1571 || 0;
1572 },
1573
1574 realOffset: function(element) {
1575 var valueT = 0, valueL = 0;
1576 do {
1577 valueT += element.scrollTop || 0;
1578 valueL += element.scrollLeft || 0;
1579 element = element.parentNode;
1580 } while (element);
1581 return [valueL, valueT];
1582 },
1583
1584 cumulativeOffset: function(element) {
1585 var valueT = 0, valueL = 0;
1586 do {
1587 valueT += element.offsetTop || 0;
1588 valueL += element.offsetLeft || 0;
1589 element = element.offsetParent;
1590 } while (element);
1591 return [valueL, valueT];
1592 },
1593
1594 positionedOffset: function(element) {
1595 var valueT = 0, valueL = 0;
1596 do {
1597 valueT += element.offsetTop || 0;
1598 valueL += element.offsetLeft || 0;
1599 element = element.offsetParent;
1600 if (element) {
1601 p = Element.getStyle(element, 'position');
1602 if (p == 'relative' || p == 'absolute') break;
1603 }
1604 } while (element);
1605 return [valueL, valueT];
1606 },
1607
1608 offsetParent: function(element) {
1609 if (element.offsetParent) return element.offsetParent;
1610 if (element == document.body) return element;
1611
1612 while ((element = element.parentNode) && element != document.body)
1613 if (Element.getStyle(element, 'position') != 'static')
1614 return element;
1615
1616 return document.body;
1617 },
1618
1619 // caches x/y coordinate pair to use with overlap
1620 within: function(element, x, y) {
1621 if (this.includeScrollOffsets)
1622 return this.withinIncludingScrolloffsets(element, x, y);
1623 this.xcomp = x;
1624 this.ycomp = y;
1625 this.offset = this.cumulativeOffset(element);
1626
1627 return (y >= this.offset[1] &&
1628 y < this.offset[1] + element.offsetHeight &&
1629 x >= this.offset[0] &&
1630 x < this.offset[0] + element.offsetWidth);
1631 },
1632
1633 withinIncludingScrolloffsets: function(element, x, y) {
1634 var offsetcache = this.realOffset(element);
1635
1636 this.xcomp = x + offsetcache[0] - this.deltaX;
1637 this.ycomp = y + offsetcache[1] - this.deltaY;
1638 this.offset = this.cumulativeOffset(element);
1639
1640 return (this.ycomp >= this.offset[1] &&
1641 this.ycomp < this.offset[1] + element.offsetHeight &&
1642 this.xcomp >= this.offset[0] &&
1643 this.xcomp < this.offset[0] + element.offsetWidth);
1644 },
1645
1646 // within must be called directly before
1647 overlap: function(mode, element) {
1648 if (!mode) return 0;
1649 if (mode == 'vertical')
1650 return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
1651 element.offsetHeight;
1652 if (mode == 'horizontal')
1653 return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
1654 element.offsetWidth;
1655 },
1656
1657 clone: function(source, target) {
1658 source = $(source);
1659 target = $(target);
1660 target.style.position = 'absolute';
1661 var offsets = this.cumulativeOffset(source);
1662 target.style.top = offsets[1] + 'px';
1663 target.style.left = offsets[0] + 'px';
1664 target.style.width = source.offsetWidth + 'px';
1665 target.style.height = source.offsetHeight + 'px';
1666 },
1667
1668 page: function(forElement) {
1669 var valueT = 0, valueL = 0;
1670
1671 var element = forElement;
1672 do {
1673 valueT += element.offsetTop || 0;
1674 valueL += element.offsetLeft || 0;
1675
1676 // Safari fix
1677 if (element.offsetParent==document.body)
1678 if (Element.getStyle(element,'position')=='absolute') break;
1679
1680 } while (element = element.offsetParent);
1681
1682 element = forElement;
1683 do {
1684 valueT -= element.scrollTop || 0;
1685 valueL -= element.scrollLeft || 0;
1686 } while (element = element.parentNode);
1687
1688 return [valueL, valueT];
1689 },
1690
1691 clone: function(source, target) {
1692 var options = Object.extend({
1693 setLeft: true,
1694 setTop: true,
1695 setWidth: true,
1696 setHeight: true,
1697 offsetTop: 0,
1698 offsetLeft: 0
1699 }, arguments[2] || {})
1700
1701 // find page position of source
1702 source = $(source);
1703 var p = Position.page(source);
1704
1705 // find coordinate system to use
1706 target = $(target);
1707 var delta = [0, 0];
1708 var parent = null;
1709 // delta [0,0] will do fine with position: fixed elements,
1710 // position:absolute needs offsetParent deltas
1711 if (Element.getStyle(target,'position') == 'absolute') {
1712 parent = Position.offsetParent(target);
1713 delta = Position.page(parent);
1714 }
1715
1716 // correct by body offsets (fixes Safari)
1717 if (parent == document.body) {
1718 delta[0] -= document.body.offsetLeft;
1719 delta[1] -= document.body.offsetTop;
1720 }
1721
1722 // set position
1723 if(options.setLeft) target.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
1724 if(options.setTop) target.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
1725 if(options.setWidth) target.style.width = source.offsetWidth + 'px';
1726 if(options.setHeight) target.style.height = source.offsetHeight + 'px';
1727 },
1728
1729 absolutize: function(element) {
1730 element = $(element);
1731 if (element.style.position == 'absolute') return;
1732 Position.prepare();
1733
1734 var offsets = Position.positionedOffset(element);
1735 var top = offsets[1];
1736 var left = offsets[0];
1737 var width = element.clientWidth;
1738 var height = element.clientHeight;
1739
1740 element._originalLeft = left - parseFloat(element.style.left || 0);
1741 element._originalTop = top - parseFloat(element.style.top || 0);
1742 element._originalWidth = element.style.width;
1743 element._originalHeight = element.style.height;
1744
1745 element.style.position = 'absolute';
1746 element.style.top = top + 'px';;
1747 element.style.left = left + 'px';;
1748 element.style.width = width + 'px';;
1749 element.style.height = height + 'px';;
1750 },
1751
1752 relativize: function(element) {
1753 element = $(element);
1754 if (element.style.position == 'relative') return;
1755 Position.prepare();
1756
1757 element.style.position = 'relative';
1758 var top = parseFloat(element.style.top || 0) - (element._originalTop || 0);
1759 var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);
1760
1761 element.style.top = top + 'px';
1762 element.style.left = left + 'px';
1763 element.style.height = element._originalHeight;
1764 element.style.width = element._originalWidth;
1765 }
1766 }
1767
1768 // Safari returns margins on body which is incorrect if the child is absolutely
1769 // positioned. For performance reasons, redefine Position.cumulativeOffset for
1770 // KHTML/WebKit only.
1771 if (/Konqueror|Safari|KHTML/.test(navigator.userAgent)) {
1772 Position.cumulativeOffset = function(element) {
1773 var valueT = 0, valueL = 0;
1774 do {
1775 valueT += element.offsetTop || 0;
1776 valueL += element.offsetLeft || 0;
1777 if (element.offsetParent == document.body)
1778 if (Element.getStyle(element, 'position') == 'absolute') break;
1779
1780 element = element.offsetParent;
1781 } while (element);
1782
1783 return [valueL, valueT];
1784 }
1785 }