1 /* Prototype JavaScript framework, version 1.7
2 * (c) 2005-2010 Sam Stephenson
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/
7 *--------------------------------------------------------------------------*/
14 var ua = navigator.userAgent;
15 var isOpera = Object.prototype.toString.call(window.opera) == '[object Opera]';
17 IE: !!window.attachEvent && !isOpera,
19 WebKit: ua.indexOf('AppleWebKit/') > -1,
20 Gecko: ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML') === -1,
21 MobileSafari: /Apple.*Mobile/.test(ua)
26 XPath: !!document.evaluate,
28 SelectorsAPI: !!document.querySelector,
30 ElementExtensions: (function() {
31 var constructor = window.Element || window.HTMLElement;
32 return !!(constructor && constructor.prototype);
34 SpecificElementExtensions: (function() {
35 if (typeof window.HTMLDivElement !== 'undefined')
38 var div = document.createElement('div'),
39 form = document.createElement('form'),
42 if (div['__proto__'] && (div['__proto__'] !== form['__proto__'])) {
52 ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
53 JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
55 emptyFunction: function() { },
57 K: function(x) { return x }
60 if (Prototype.Browser.MobileSafari)
61 Prototype.BrowserFeatures.SpecificElementExtensions = false;
62 /* Based on Alex Arnell's inheritance implementation. */
64 var Class = (function() {
66 var IS_DONTENUM_BUGGY = (function(){
67 for (var p in { toString: 1 }) {
68 if (p === 'toString') return false;
73 function subclass() {};
75 var parent = null, properties = $A(arguments);
76 if (Object.isFunction(properties[0]))
77 parent = properties.shift();
80 this.initialize.apply(this, arguments);
83 Object.extend(klass, Class.Methods);
84 klass.superclass = parent;
85 klass.subclasses = [];
88 subclass.prototype = parent.prototype;
89 klass.prototype = new subclass;
90 parent.subclasses.push(klass);
93 for (var i = 0, length = properties.length; i < length; i++)
94 klass.addMethods(properties[i]);
96 if (!klass.prototype.initialize)
97 klass.prototype.initialize = Prototype.emptyFunction;
99 klass.prototype.constructor = klass;
103 function addMethods(source) {
104 var ancestor = this.superclass && this.superclass.prototype,
105 properties = Object.keys(source);
107 if (IS_DONTENUM_BUGGY) {
108 if (source.toString != Object.prototype.toString)
109 properties.push("toString");
110 if (source.valueOf != Object.prototype.valueOf)
111 properties.push("valueOf");
114 for (var i = 0, length = properties.length; i < length; i++) {
115 var property = properties[i], value = source[property];
116 if (ancestor && Object.isFunction(value) &&
117 value.argumentNames()[0] == "$super") {
119 value = (function(m) {
120 return function() { return ancestor[m].apply(this, arguments); };
121 })(property).wrap(method);
123 value.valueOf = method.valueOf.bind(method);
124 value.toString = method.toString.bind(method);
126 this.prototype[property] = value;
135 addMethods: addMethods
141 var _toString = Object.prototype.toString,
143 UNDEFINED_TYPE = 'Undefined',
144 BOOLEAN_TYPE = 'Boolean',
145 NUMBER_TYPE = 'Number',
146 STRING_TYPE = 'String',
147 OBJECT_TYPE = 'Object',
148 FUNCTION_CLASS = '[object Function]',
149 BOOLEAN_CLASS = '[object Boolean]',
150 NUMBER_CLASS = '[object Number]',
151 STRING_CLASS = '[object String]',
152 ARRAY_CLASS = '[object Array]',
153 DATE_CLASS = '[object Date]',
154 NATIVE_JSON_STRINGIFY_SUPPORT = window.JSON &&
155 typeof JSON.stringify === 'function' &&
156 JSON.stringify(0) === '0' &&
157 typeof JSON.stringify(Prototype.K) === 'undefined';
161 case null: return NULL_TYPE;
162 case (void 0): return UNDEFINED_TYPE;
166 case 'boolean': return BOOLEAN_TYPE;
167 case 'number': return NUMBER_TYPE;
168 case 'string': return STRING_TYPE;
173 function extend(destination, source) {
174 for (var property in source)
175 destination[property] = source[property];
179 function inspect(object) {
181 if (isUndefined(object)) return 'undefined';
182 if (object === null) return 'null';
183 return object.inspect ? object.inspect() : String(object);
185 if (e instanceof RangeError) return '...';
190 function toJSON(value) {
191 return Str('', { '': value }, []);
194 function Str(key, holder, stack) {
195 var value = holder[key],
198 if (Type(value) === OBJECT_TYPE && typeof value.toJSON === 'function') {
199 value = value.toJSON(key);
202 var _class = _toString.call(value);
208 value = value.valueOf();
212 case null: return 'null';
213 case true: return 'true';
214 case false: return 'false';
220 return value.inspect(true);
222 return isFinite(value) ? String(value) : 'null';
225 for (var i = 0, length = stack.length; i < length; i++) {
226 if (stack[i] === value) { throw new TypeError(); }
231 if (_class === ARRAY_CLASS) {
232 for (var i = 0, length = value.length; i < length; i++) {
233 var str = Str(i, value, stack);
234 partial.push(typeof str === 'undefined' ? 'null' : str);
236 partial = '[' + partial.join(',') + ']';
238 var keys = Object.keys(value);
239 for (var i = 0, length = keys.length; i < length; i++) {
240 var key = keys[i], str = Str(key, value, stack);
241 if (typeof str !== "undefined") {
242 partial.push(key.inspect(true)+ ':' + str);
245 partial = '{' + partial.join(',') + '}';
252 function stringify(object) {
253 return JSON.stringify(object);
256 function toQueryString(object) {
257 return $H(object).toQueryString();
260 function toHTML(object) {
261 return object && object.toHTML ? object.toHTML() : String.interpret(object);
264 function keys(object) {
265 if (Type(object) !== OBJECT_TYPE) { throw new TypeError(); }
267 for (var property in object) {
268 if (object.hasOwnProperty(property)) {
269 results.push(property);
275 function values(object) {
277 for (var property in object)
278 results.push(object[property]);
282 function clone(object) {
283 return extend({ }, object);
286 function isElement(object) {
287 return !!(object && object.nodeType == 1);
290 function isArray(object) {
291 return _toString.call(object) === ARRAY_CLASS;
294 var hasNativeIsArray = (typeof Array.isArray == 'function')
295 && Array.isArray([]) && !Array.isArray({});
297 if (hasNativeIsArray) {
298 isArray = Array.isArray;
301 function isHash(object) {
302 return object instanceof Hash;
305 function isFunction(object) {
306 return _toString.call(object) === FUNCTION_CLASS;
309 function isString(object) {
310 return _toString.call(object) === STRING_CLASS;
313 function isNumber(object) {
314 return _toString.call(object) === NUMBER_CLASS;
317 function isDate(object) {
318 return _toString.call(object) === DATE_CLASS;
321 function isUndefined(object) {
322 return typeof object === "undefined";
328 toJSON: NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
329 toQueryString: toQueryString,
331 keys: Object.keys || keys,
334 isElement: isElement,
337 isFunction: isFunction,
341 isUndefined: isUndefined
344 Object.extend(Function.prototype, (function() {
345 var slice = Array.prototype.slice;
347 function update(array, args) {
348 var arrayLength = array.length, length = args.length;
349 while (length--) array[arrayLength + length] = args[length];
353 function merge(array, args) {
354 array = slice.call(array, 0);
355 return update(array, args);
358 function argumentNames() {
359 var names = this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
360 .replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
361 .replace(/\s+/g, '').split(',');
362 return names.length == 1 && !names[0] ? [] : names;
365 function bind(context) {
366 if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
367 var __method = this, args = slice.call(arguments, 1);
369 var a = merge(args, arguments);
370 return __method.apply(context, a);
374 function bindAsEventListener(context) {
375 var __method = this, args = slice.call(arguments, 1);
376 return function(event) {
377 var a = update([event || window.event], args);
378 return __method.apply(context, a);
383 if (!arguments.length) return this;
384 var __method = this, args = slice.call(arguments, 0);
386 var a = merge(args, arguments);
387 return __method.apply(this, a);
391 function delay(timeout) {
392 var __method = this, args = slice.call(arguments, 1);
393 timeout = timeout * 1000;
394 return window.setTimeout(function() {
395 return __method.apply(__method, args);
400 var args = update([0.01], arguments);
401 return this.delay.apply(this, args);
404 function wrap(wrapper) {
407 var a = update([__method.bind(this)], arguments);
408 return wrapper.apply(this, a);
412 function methodize() {
413 if (this._methodized) return this._methodized;
415 return this._methodized = function() {
416 var a = update([this], arguments);
417 return __method.apply(null, a);
422 argumentNames: argumentNames,
424 bindAsEventListener: bindAsEventListener,
438 function toISOString() {
439 return this.getUTCFullYear() + '-' +
440 (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
441 this.getUTCDate().toPaddedString(2) + 'T' +
442 this.getUTCHours().toPaddedString(2) + ':' +
443 this.getUTCMinutes().toPaddedString(2) + ':' +
444 this.getUTCSeconds().toPaddedString(2) + 'Z';
449 return this.toISOString();
452 if (!proto.toISOString) proto.toISOString = toISOString;
453 if (!proto.toJSON) proto.toJSON = toJSON;
458 RegExp.prototype.match = RegExp.prototype.test;
460 RegExp.escape = function(str) {
461 return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
463 var PeriodicalExecuter = Class.create({
464 initialize: function(callback, frequency) {
465 this.callback = callback;
466 this.frequency = frequency;
467 this.currentlyExecuting = false;
469 this.registerCallback();
472 registerCallback: function() {
473 this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
476 execute: function() {
481 if (!this.timer) return;
482 clearInterval(this.timer);
486 onTimerEvent: function() {
487 if (!this.currentlyExecuting) {
489 this.currentlyExecuting = true;
491 this.currentlyExecuting = false;
493 this.currentlyExecuting = false;
499 Object.extend(String, {
500 interpret: function(value) {
501 return value == null ? '' : String(value);
513 Object.extend(String.prototype, (function() {
514 var NATIVE_JSON_PARSE_SUPPORT = window.JSON &&
515 typeof JSON.parse === 'function' &&
516 JSON.parse('{"test": true}').test;
518 function prepareReplacement(replacement) {
519 if (Object.isFunction(replacement)) return replacement;
520 var template = new Template(replacement);
521 return function(match) { return template.evaluate(match) };
524 function gsub(pattern, replacement) {
525 var result = '', source = this, match;
526 replacement = prepareReplacement(replacement);
528 if (Object.isString(pattern))
529 pattern = RegExp.escape(pattern);
531 if (!(pattern.length || pattern.source)) {
532 replacement = replacement('');
533 return replacement + source.split('').join(replacement) + replacement;
536 while (source.length > 0) {
537 if (match = source.match(pattern)) {
538 result += source.slice(0, match.index);
539 result += String.interpret(replacement(match));
540 source = source.slice(match.index + match[0].length);
542 result += source, source = '';
548 function sub(pattern, replacement, count) {
549 replacement = prepareReplacement(replacement);
550 count = Object.isUndefined(count) ? 1 : count;
552 return this.gsub(pattern, function(match) {
553 if (--count < 0) return match[0];
554 return replacement(match);
558 function scan(pattern, iterator) {
559 this.gsub(pattern, iterator);
563 function truncate(length, truncation) {
564 length = length || 30;
565 truncation = Object.isUndefined(truncation) ? '...' : truncation;
566 return this.length > length ?
567 this.slice(0, length - truncation.length) + truncation : String(this);
571 return this.replace(/^\s+/, '').replace(/\s+$/, '');
574 function stripTags() {
575 return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
578 function stripScripts() {
579 return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
582 function extractScripts() {
583 var matchAll = new RegExp(Prototype.ScriptFragment, 'img'),
584 matchOne = new RegExp(Prototype.ScriptFragment, 'im');
585 return (this.match(matchAll) || []).map(function(scriptTag) {
586 return (scriptTag.match(matchOne) || ['', ''])[1];
590 function evalScripts() {
591 return this.extractScripts().map(function(script) { return eval(script) });
594 function escapeHTML() {
595 return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
598 function unescapeHTML() {
599 return this.stripTags().replace(/</g,'<').replace(/>/g,'>').replace(/&/g,'&');
603 function toQueryParams(separator) {
604 var match = this.strip().match(/([^?#]*)(#.*)?$/);
605 if (!match) return { };
607 return match[1].split(separator || '&').inject({ }, function(hash, pair) {
608 if ((pair = pair.split('='))[0]) {
609 var key = decodeURIComponent(pair.shift()),
610 value = pair.length > 1 ? pair.join('=') : pair[0];
612 if (value != undefined) value = decodeURIComponent(value);
615 if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
616 hash[key].push(value);
618 else hash[key] = value;
625 return this.split('');
629 return this.slice(0, this.length - 1) +
630 String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
633 function times(count) {
634 return count < 1 ? '' : new Array(count + 1).join(this);
637 function camelize() {
638 return this.replace(/-+(.)?/g, function(match, chr) {
639 return chr ? chr.toUpperCase() : '';
643 function capitalize() {
644 return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
647 function underscore() {
648 return this.replace(/::/g, '/')
649 .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
650 .replace(/([a-z\d])([A-Z])/g, '$1_$2')
655 function dasherize() {
656 return this.replace(/_/g, '-');
659 function inspect(useDoubleQuotes) {
660 var escapedString = this.replace(/[\x00-\x1f\\]/g, function(character) {
661 if (character in String.specialChar) {
662 return String.specialChar[character];
664 return '\\u00' + character.charCodeAt().toPaddedString(2, 16);
666 if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
667 return "'" + escapedString.replace(/'/g, '\\\'') + "'";
670 function unfilterJSON(filter) {
671 return this.replace(filter || Prototype.JSONFilter, '$1');
676 if (str.blank()) return false;
677 str = str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
678 str = str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
679 str = str.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
680 return (/^[\],:{}\s]*$/).test(str);
683 function evalJSON(sanitize) {
684 var json = this.unfilterJSON(),
685 cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
687 json = json.replace(cx, function (a) {
688 return '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
692 if (!sanitize || json.isJSON()) return eval('(' + json + ')');
694 throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
697 function parseJSON() {
698 var json = this.unfilterJSON();
699 return JSON.parse(json);
702 function include(pattern) {
703 return this.indexOf(pattern) > -1;
706 function startsWith(pattern) {
707 return this.lastIndexOf(pattern, 0) === 0;
710 function endsWith(pattern) {
711 var d = this.length - pattern.length;
712 return d >= 0 && this.indexOf(pattern, d) === d;
720 return /^\s*$/.test(this);
723 function interpolate(object, pattern) {
724 return new Template(this, pattern).evaluate(object);
732 strip: String.prototype.trim || strip,
733 stripTags: stripTags,
734 stripScripts: stripScripts,
735 extractScripts: extractScripts,
736 evalScripts: evalScripts,
737 escapeHTML: escapeHTML,
738 unescapeHTML: unescapeHTML,
739 toQueryParams: toQueryParams,
740 parseQuery: toQueryParams,
745 capitalize: capitalize,
746 underscore: underscore,
747 dasherize: dasherize,
749 unfilterJSON: unfilterJSON,
751 evalJSON: NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
753 startsWith: startsWith,
757 interpolate: interpolate
761 var Template = Class.create({
762 initialize: function(template, pattern) {
763 this.template = template.toString();
764 this.pattern = pattern || Template.Pattern;
767 evaluate: function(object) {
768 if (object && Object.isFunction(object.toTemplateReplacements))
769 object = object.toTemplateReplacements();
771 return this.template.gsub(this.pattern, function(match) {
772 if (object == null) return (match[1] + '');
774 var before = match[1] || '';
775 if (before == '\\') return match[2];
777 var ctx = object, expr = match[3],
778 pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
780 match = pattern.exec(expr);
781 if (match == null) return before;
783 while (match != null) {
784 var comp = match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : match[1];
786 if (null == ctx || '' == match[3]) break;
787 expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
788 match = pattern.exec(expr);
791 return before + String.interpret(ctx);
795 Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;
799 var Enumerable = (function() {
800 function each(iterator, context) {
803 this._each(function(value) {
804 iterator.call(context, value, index++);
807 if (e != $break) throw e;
812 function eachSlice(number, iterator, context) {
813 var index = -number, slices = [], array = this.toArray();
814 if (number < 1) return array;
815 while ((index += number) < array.length)
816 slices.push(array.slice(index, index+number));
817 return slices.collect(iterator, context);
820 function all(iterator, context) {
821 iterator = iterator || Prototype.K;
823 this.each(function(value, index) {
824 result = result && !!iterator.call(context, value, index);
825 if (!result) throw $break;
830 function any(iterator, context) {
831 iterator = iterator || Prototype.K;
833 this.each(function(value, index) {
834 if (result = !!iterator.call(context, value, index))
840 function collect(iterator, context) {
841 iterator = iterator || Prototype.K;
843 this.each(function(value, index) {
844 results.push(iterator.call(context, value, index));
849 function detect(iterator, context) {
851 this.each(function(value, index) {
852 if (iterator.call(context, value, index)) {
860 function findAll(iterator, context) {
862 this.each(function(value, index) {
863 if (iterator.call(context, value, index))
869 function grep(filter, iterator, context) {
870 iterator = iterator || Prototype.K;
873 if (Object.isString(filter))
874 filter = new RegExp(RegExp.escape(filter));
876 this.each(function(value, index) {
877 if (filter.match(value))
878 results.push(iterator.call(context, value, index));
883 function include(object) {
884 if (Object.isFunction(this.indexOf))
885 if (this.indexOf(object) != -1) return true;
888 this.each(function(value) {
889 if (value == object) {
897 function inGroupsOf(number, fillWith) {
898 fillWith = Object.isUndefined(fillWith) ? null : fillWith;
899 return this.eachSlice(number, function(slice) {
900 while(slice.length < number) slice.push(fillWith);
905 function inject(memo, iterator, context) {
906 this.each(function(value, index) {
907 memo = iterator.call(context, memo, value, index);
912 function invoke(method) {
913 var args = $A(arguments).slice(1);
914 return this.map(function(value) {
915 return value[method].apply(value, args);
919 function max(iterator, context) {
920 iterator = iterator || Prototype.K;
922 this.each(function(value, index) {
923 value = iterator.call(context, value, index);
924 if (result == null || value >= result)
930 function min(iterator, context) {
931 iterator = iterator || Prototype.K;
933 this.each(function(value, index) {
934 value = iterator.call(context, value, index);
935 if (result == null || value < result)
941 function partition(iterator, context) {
942 iterator = iterator || Prototype.K;
943 var trues = [], falses = [];
944 this.each(function(value, index) {
945 (iterator.call(context, value, index) ?
946 trues : falses).push(value);
948 return [trues, falses];
951 function pluck(property) {
953 this.each(function(value) {
954 results.push(value[property]);
959 function reject(iterator, context) {
961 this.each(function(value, index) {
962 if (!iterator.call(context, value, index))
968 function sortBy(iterator, context) {
969 return this.map(function(value, index) {
972 criteria: iterator.call(context, value, index)
974 }).sort(function(left, right) {
975 var a = left.criteria, b = right.criteria;
976 return a < b ? -1 : a > b ? 1 : 0;
985 var iterator = Prototype.K, args = $A(arguments);
986 if (Object.isFunction(args.last()))
987 iterator = args.pop();
989 var collections = [this].concat(args).map($A);
990 return this.map(function(value, index) {
991 return iterator(collections.pluck(index));
996 return this.toArray().length;
1000 return '#<Enumerable:' + this.toArray().inspect() + '>';
1013 eachSlice: eachSlice,
1027 inGroupsOf: inGroupsOf,
1032 partition: partition,
1045 function $A(iterable) {
1046 if (!iterable) return [];
1047 if ('toArray' in Object(iterable)) return iterable.toArray();
1048 var length = iterable.length || 0, results = new Array(length);
1049 while (length--) results[length] = iterable[length];
1054 function $w(string) {
1055 if (!Object.isString(string)) return [];
1056 string = string.strip();
1057 return string ? string.split(/\s+/) : [];
1064 var arrayProto = Array.prototype,
1065 slice = arrayProto.slice,
1066 _each = arrayProto.forEach; // use native browser JS 1.6 implementation if available
1068 function each(iterator, context) {
1069 for (var i = 0, length = this.length >>> 0; i < length; i++) {
1070 if (i in this) iterator.call(context, this[i], i, this);
1073 if (!_each) _each = each;
1085 return this[this.length - 1];
1088 function compact() {
1089 return this.select(function(value) {
1090 return value != null;
1094 function flatten() {
1095 return this.inject([], function(array, value) {
1096 if (Object.isArray(value))
1097 return array.concat(value.flatten());
1103 function without() {
1104 var values = slice.call(arguments, 0);
1105 return this.select(function(value) {
1106 return !values.include(value);
1110 function reverse(inline) {
1111 return (inline === false ? this.toArray() : this)._reverse();
1114 function uniq(sorted) {
1115 return this.inject([], function(array, value, index) {
1116 if (0 == index || (sorted ? array.last() != value : !array.include(value)))
1122 function intersect(array) {
1123 return this.uniq().findAll(function(item) {
1124 return array.detect(function(value) { return item === value });
1130 return slice.call(this, 0);
1137 function inspect() {
1138 return '[' + this.map(Object.inspect).join(', ') + ']';
1141 function indexOf(item, i) {
1143 var length = this.length;
1144 if (i < 0) i = length + i;
1145 for (; i < length; i++)
1146 if (this[i] === item) return i;
1150 function lastIndexOf(item, i) {
1151 i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
1152 var n = this.slice(0, i).reverse().indexOf(item);
1153 return (n < 0) ? n : i - n - 1;
1157 var array = slice.call(this, 0), item;
1158 for (var i = 0, length = arguments.length; i < length; i++) {
1159 item = arguments[i];
1160 if (Object.isArray(item) && !('callee' in item)) {
1161 for (var j = 0, arrayLength = item.length; j < arrayLength; j++)
1162 array.push(item[j]);
1170 Object.extend(arrayProto, Enumerable);
1172 if (!arrayProto._reverse)
1173 arrayProto._reverse = arrayProto.reverse;
1175 Object.extend(arrayProto, {
1185 intersect: intersect,
1192 var CONCAT_ARGUMENTS_BUGGY = (function() {
1193 return [].concat(arguments)[0][0] !== 1;
1196 if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat = concat;
1198 if (!arrayProto.indexOf) arrayProto.indexOf = indexOf;
1199 if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf = lastIndexOf;
1201 function $H(object) {
1202 return new Hash(object);
1205 var Hash = Class.create(Enumerable, (function() {
1206 function initialize(object) {
1207 this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
1211 function _each(iterator) {
1212 for (var key in this._object) {
1213 var value = this._object[key], pair = [key, value];
1220 function set(key, value) {
1221 return this._object[key] = value;
1225 if (this._object[key] !== Object.prototype[key])
1226 return this._object[key];
1229 function unset(key) {
1230 var value = this._object[key];
1231 delete this._object[key];
1235 function toObject() {
1236 return Object.clone(this._object);
1242 return this.pluck('key');
1246 return this.pluck('value');
1249 function index(value) {
1250 var match = this.detect(function(pair) {
1251 return pair.value === value;
1253 return match && match.key;
1256 function merge(object) {
1257 return this.clone().update(object);
1260 function update(object) {
1261 return new Hash(object).inject(this, function(result, pair) {
1262 result.set(pair.key, pair.value);
1267 function toQueryPair(key, value) {
1268 if (Object.isUndefined(value)) return key;
1269 return key + '=' + encodeURIComponent(String.interpret(value));
1272 function toQueryString() {
1273 return this.inject([], function(results, pair) {
1274 var key = encodeURIComponent(pair.key), values = pair.value;
1276 if (values && typeof values == 'object') {
1277 if (Object.isArray(values)) {
1278 var queryValues = [];
1279 for (var i = 0, len = values.length, value; i < len; i++) {
1281 queryValues.push(toQueryPair(key, value));
1283 return results.concat(queryValues);
1285 } else results.push(toQueryPair(key, values));
1290 function inspect() {
1291 return '#<Hash:{' + this.map(function(pair) {
1292 return pair.map(Object.inspect).join(': ');
1293 }).join(', ') + '}>';
1297 return new Hash(this);
1301 initialize: initialize,
1307 toTemplateReplacements: toObject,
1313 toQueryString: toQueryString,
1321 Object.extend(Number.prototype, (function() {
1322 function toColorPart() {
1323 return this.toPaddedString(2, 16);
1330 function times(iterator, context) {
1331 $R(0, this, true).each(iterator, context);
1335 function toPaddedString(length, radix) {
1336 var string = this.toString(radix || 10);
1337 return '0'.times(length - string.length) + string;
1341 return Math.abs(this);
1345 return Math.round(this);
1349 return Math.ceil(this);
1353 return Math.floor(this);
1357 toColorPart: toColorPart,
1360 toPaddedString: toPaddedString,
1368 function $R(start, end, exclusive) {
1369 return new ObjectRange(start, end, exclusive);
1372 var ObjectRange = Class.create(Enumerable, (function() {
1373 function initialize(start, end, exclusive) {
1376 this.exclusive = exclusive;
1379 function _each(iterator) {
1380 var value = this.start;
1381 while (this.include(value)) {
1383 value = value.succ();
1387 function include(value) {
1388 if (value < this.start)
1391 return value < this.end;
1392 return value <= this.end;
1396 initialize: initialize,
1411 for (var i = 0, length = arguments.length; i < length; i++) {
1412 var lambda = arguments[i];
1414 returnValue = lambda();
1424 getTransport: function() {
1426 function() {return new XMLHttpRequest()},
1427 function() {return new ActiveXObject('Msxml2.XMLHTTP')},
1428 function() {return new ActiveXObject('Microsoft.XMLHTTP')}
1432 activeRequestCount: 0
1438 _each: function(iterator) {
1439 this.responders._each(iterator);
1442 register: function(responder) {
1443 if (!this.include(responder))
1444 this.responders.push(responder);
1447 unregister: function(responder) {
1448 this.responders = this.responders.without(responder);
1451 dispatch: function(callback, request, transport, json) {
1452 this.each(function(responder) {
1453 if (Object.isFunction(responder[callback])) {
1455 responder[callback].apply(responder, [request, transport, json]);
1462 Object.extend(Ajax.Responders, Enumerable);
1464 Ajax.Responders.register({
1465 onCreate: function() { Ajax.activeRequestCount++ },
1466 onComplete: function() { Ajax.activeRequestCount-- }
1468 Ajax.Base = Class.create({
1469 initialize: function(options) {
1473 contentType: 'application/x-www-form-urlencoded',
1479 Object.extend(this.options, options || { });
1481 this.options.method = this.options.method.toLowerCase();
1483 if (Object.isHash(this.options.parameters))
1484 this.options.parameters = this.options.parameters.toObject();
1487 Ajax.Request = Class.create(Ajax.Base, {
1490 initialize: function($super, url, options) {
1492 this.transport = Ajax.getTransport();
1496 request: function(url) {
1498 this.method = this.options.method;
1499 var params = Object.isString(this.options.parameters) ?
1500 this.options.parameters :
1501 Object.toQueryString(this.options.parameters);
1503 if (!['get', 'post'].include(this.method)) {
1504 params += (params ? '&' : '') + "_method=" + this.method;
1505 this.method = 'post';
1508 if (params && this.method === 'get') {
1509 this.url += (this.url.include('?') ? '&' : '?') + params;
1512 this.parameters = params.toQueryParams();
1515 var response = new Ajax.Response(this);
1516 if (this.options.onCreate) this.options.onCreate(response);
1517 Ajax.Responders.dispatch('onCreate', this, response);
1519 this.transport.open(this.method.toUpperCase(), this.url,
1520 this.options.asynchronous);
1522 if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
1524 this.transport.onreadystatechange = this.onStateChange.bind(this);
1525 this.setRequestHeaders();
1527 this.body = this.method == 'post' ? (this.options.postBody || params) : null;
1528 this.transport.send(this.body);
1530 /* Force Firefox to handle ready state 4 for synchronous requests */
1531 if (!this.options.asynchronous && this.transport.overrideMimeType)
1532 this.onStateChange();
1536 this.dispatchException(e);
1540 onStateChange: function() {
1541 var readyState = this.transport.readyState;
1542 if (readyState > 1 && !((readyState == 4) && this._complete))
1543 this.respondToReadyState(this.transport.readyState);
1546 setRequestHeaders: function() {
1548 'X-Requested-With': 'XMLHttpRequest',
1549 'X-Prototype-Version': Prototype.Version,
1550 'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
1553 if (this.method == 'post') {
1554 headers['Content-type'] = this.options.contentType +
1555 (this.options.encoding ? '; charset=' + this.options.encoding : '');
1557 /* Force "Connection: close" for older Mozilla browsers to work
1558 * around a bug where XMLHttpRequest sends an incorrect
1559 * Content-length header. See Mozilla Bugzilla #246651.
1561 if (this.transport.overrideMimeType &&
1562 (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
1563 headers['Connection'] = 'close';
1566 if (typeof this.options.requestHeaders == 'object') {
1567 var extras = this.options.requestHeaders;
1569 if (Object.isFunction(extras.push))
1570 for (var i = 0, length = extras.length; i < length; i += 2)
1571 headers[extras[i]] = extras[i+1];
1573 $H(extras).each(function(pair) { headers[pair.key] = pair.value });
1576 for (var name in headers)
1577 this.transport.setRequestHeader(name, headers[name]);
1580 success: function() {
1581 var status = this.getStatus();
1582 return !status || (status >= 200 && status < 300) || status == 304;
1585 getStatus: function() {
1587 if (this.transport.status === 1223) return 204;
1588 return this.transport.status || 0;
1589 } catch (e) { return 0 }
1592 respondToReadyState: function(readyState) {
1593 var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);
1595 if (state == 'Complete') {
1597 this._complete = true;
1598 (this.options['on' + response.status]
1599 || this.options['on' + (this.success() ? 'Success' : 'Failure')]
1600 || Prototype.emptyFunction)(response, response.headerJSON);
1602 this.dispatchException(e);
1605 var contentType = response.getHeader('Content-type');
1606 if (this.options.evalJS == 'force'
1607 || (this.options.evalJS && this.isSameOrigin() && contentType
1608 && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
1609 this.evalResponse();
1613 (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
1614 Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
1616 this.dispatchException(e);
1619 if (state == 'Complete') {
1620 this.transport.onreadystatechange = Prototype.emptyFunction;
1624 isSameOrigin: function() {
1625 var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
1626 return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
1627 protocol: location.protocol,
1628 domain: document.domain,
1629 port: location.port ? ':' + location.port : ''
1633 getHeader: function(name) {
1635 return this.transport.getResponseHeader(name) || null;
1636 } catch (e) { return null; }
1639 evalResponse: function() {
1641 return eval((this.transport.responseText || '').unfilterJSON());
1643 this.dispatchException(e);
1647 dispatchException: function(exception) {
1648 (this.options.onException || Prototype.emptyFunction)(this, exception);
1649 Ajax.Responders.dispatch('onException', this, exception);
1653 Ajax.Request.Events =
1654 ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
1663 Ajax.Response = Class.create({
1664 initialize: function(request){
1665 this.request = request;
1666 var transport = this.transport = request.transport,
1667 readyState = this.readyState = transport.readyState;
1669 if ((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
1670 this.status = this.getStatus();
1671 this.statusText = this.getStatusText();
1672 this.responseText = String.interpret(transport.responseText);
1673 this.headerJSON = this._getHeaderJSON();
1676 if (readyState == 4) {
1677 var xml = transport.responseXML;
1678 this.responseXML = Object.isUndefined(xml) ? null : xml;
1679 this.responseJSON = this._getResponseJSON();
1687 getStatus: Ajax.Request.prototype.getStatus,
1689 getStatusText: function() {
1691 return this.transport.statusText || '';
1692 } catch (e) { return '' }
1695 getHeader: Ajax.Request.prototype.getHeader,
1697 getAllHeaders: function() {
1699 return this.getAllResponseHeaders();
1700 } catch (e) { return null }
1703 getResponseHeader: function(name) {
1704 return this.transport.getResponseHeader(name);
1707 getAllResponseHeaders: function() {
1708 return this.transport.getAllResponseHeaders();
1711 _getHeaderJSON: function() {
1712 var json = this.getHeader('X-JSON');
1713 if (!json) return null;
1714 json = decodeURIComponent(escape(json));
1716 return json.evalJSON(this.request.options.sanitizeJSON ||
1717 !this.request.isSameOrigin());
1719 this.request.dispatchException(e);
1723 _getResponseJSON: function() {
1724 var options = this.request.options;
1725 if (!options.evalJSON || (options.evalJSON != 'force' &&
1726 !(this.getHeader('Content-type') || '').include('application/json')) ||
1727 this.responseText.blank())
1730 return this.responseText.evalJSON(options.sanitizeJSON ||
1731 !this.request.isSameOrigin());
1733 this.request.dispatchException(e);
1738 Ajax.Updater = Class.create(Ajax.Request, {
1739 initialize: function($super, container, url, options) {
1741 success: (container.success || container),
1742 failure: (container.failure || (container.success ? null : container))
1745 options = Object.clone(options);
1746 var onComplete = options.onComplete;
1747 options.onComplete = (function(response, json) {
1748 this.updateContent(response.responseText);
1749 if (Object.isFunction(onComplete)) onComplete(response, json);
1752 $super(url, options);
1755 updateContent: function(responseText) {
1756 var receiver = this.container[this.success() ? 'success' : 'failure'],
1757 options = this.options;
1759 if (!options.evalScripts) responseText = responseText.stripScripts();
1761 if (receiver = $(receiver)) {
1762 if (options.insertion) {
1763 if (Object.isString(options.insertion)) {
1764 var insertion = { }; insertion[options.insertion] = responseText;
1765 receiver.insert(insertion);
1767 else options.insertion(receiver, responseText);
1769 else receiver.update(responseText);
1774 Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
1775 initialize: function($super, container, url, options) {
1777 this.onComplete = this.options.onComplete;
1779 this.frequency = (this.options.frequency || 2);
1780 this.decay = (this.options.decay || 1);
1783 this.container = container;
1790 this.options.onComplete = this.updateComplete.bind(this);
1791 this.onTimerEvent();
1795 this.updater.options.onComplete = undefined;
1796 clearTimeout(this.timer);
1797 (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
1800 updateComplete: function(response) {
1801 if (this.options.decay) {
1802 this.decay = (response.responseText == this.lastText ?
1803 this.decay * this.options.decay : 1);
1805 this.lastText = response.responseText;
1807 this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
1810 onTimerEvent: function() {
1811 this.updater = new Ajax.Updater(this.container, this.url, this.options);
1816 function $(element) {
1817 if (arguments.length > 1) {
1818 for (var i = 0, elements = [], length = arguments.length; i < length; i++)
1819 elements.push($(arguments[i]));
1822 if (Object.isString(element))
1823 element = document.getElementById(element);
1824 return Element.extend(element);
1827 if (Prototype.BrowserFeatures.XPath) {
1828 document._getElementsByXPath = function(expression, parentElement) {
1830 var query = document.evaluate(expression, $(parentElement) || document,
1831 null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
1832 for (var i = 0, length = query.snapshotLength; i < length; i++)
1833 results.push(Element.extend(query.snapshotItem(i)));
1838 /*--------------------------------------------------------------------------*/
1840 if (!Node) var Node = { };
1842 if (!Node.ELEMENT_NODE) {
1843 Object.extend(Node, {
1847 CDATA_SECTION_NODE: 4,
1848 ENTITY_REFERENCE_NODE: 5,
1850 PROCESSING_INSTRUCTION_NODE: 7,
1853 DOCUMENT_TYPE_NODE: 10,
1854 DOCUMENT_FRAGMENT_NODE: 11,
1862 function shouldUseCache(tagName, attributes) {
1863 if (tagName === 'select') return false;
1864 if ('type' in attributes) return false;
1868 var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX = (function(){
1870 var el = document.createElement('<input name="x">');
1871 return el.tagName.toLowerCase() === 'input' && el.name === 'x';
1878 var element = global.Element;
1880 global.Element = function(tagName, attributes) {
1881 attributes = attributes || { };
1882 tagName = tagName.toLowerCase();
1883 var cache = Element.cache;
1885 if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && attributes.name) {
1886 tagName = '<' + tagName + ' name="' + attributes.name + '">';
1887 delete attributes.name;
1888 return Element.writeAttribute(document.createElement(tagName), attributes);
1891 if (!cache[tagName]) cache[tagName] = Element.extend(document.createElement(tagName));
1893 var node = shouldUseCache(tagName, attributes) ?
1894 cache[tagName].cloneNode(false) : document.createElement(tagName);
1896 return Element.writeAttribute(node, attributes);
1899 Object.extend(global.Element, element || { });
1900 if (element) global.Element.prototype = element.prototype;
1904 Element.idCounter = 1;
1905 Element.cache = { };
1907 Element._purgeElement = function(element) {
1908 var uid = element._prototypeUID;
1910 Element.stopObserving(element);
1911 element._prototypeUID = void 0;
1912 delete Element.Storage[uid];
1917 visible: function(element) {
1918 return $(element).style.display != 'none';
1921 toggle: function(element) {
1922 element = $(element);
1923 Element[Element.visible(element) ? 'hide' : 'show'](element);
1927 hide: function(element) {
1928 element = $(element);
1929 element.style.display = 'none';
1933 show: function(element) {
1934 element = $(element);
1935 element.style.display = '';
1939 remove: function(element) {
1940 element = $(element);
1941 element.parentNode.removeChild(element);
1945 update: (function(){
1947 var SELECT_ELEMENT_INNERHTML_BUGGY = (function(){
1948 var el = document.createElement("select"),
1950 el.innerHTML = "<option value=\"test\">test</option>";
1951 if (el.options && el.options[0]) {
1952 isBuggy = el.options[0].nodeName.toUpperCase() !== "OPTION";
1958 var TABLE_ELEMENT_INNERHTML_BUGGY = (function(){
1960 var el = document.createElement("table");
1961 if (el && el.tBodies) {
1962 el.innerHTML = "<tbody><tr><td>test</td></tr></tbody>";
1963 var isBuggy = typeof el.tBodies[0] == "undefined";
1972 var LINK_ELEMENT_INNERHTML_BUGGY = (function() {
1974 var el = document.createElement('div');
1975 el.innerHTML = "<link>";
1976 var isBuggy = (el.childNodes.length === 0);
1984 var ANY_INNERHTML_BUGGY = SELECT_ELEMENT_INNERHTML_BUGGY ||
1985 TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;
1987 var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING = (function () {
1988 var s = document.createElement("script"),
1991 s.appendChild(document.createTextNode(""));
1992 isBuggy = !s.firstChild ||
1993 s.firstChild && s.firstChild.nodeType !== 3;
2002 function update(element, content) {
2003 element = $(element);
2004 var purgeElement = Element._purgeElement;
2006 var descendants = element.getElementsByTagName('*'),
2007 i = descendants.length;
2008 while (i--) purgeElement(descendants[i]);
2010 if (content && content.toElement)
2011 content = content.toElement();
2013 if (Object.isElement(content))
2014 return element.update().insert(content);
2016 content = Object.toHTML(content);
2018 var tagName = element.tagName.toUpperCase();
2020 if (tagName === 'SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING) {
2021 element.text = content;
2025 if (ANY_INNERHTML_BUGGY) {
2026 if (tagName in Element._insertionTranslations.tags) {
2027 while (element.firstChild) {
2028 element.removeChild(element.firstChild);
2030 Element._getContentFromAnonymousElement(tagName, content.stripScripts())
2031 .each(function(node) {
2032 element.appendChild(node)
2034 } else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1) {
2035 while (element.firstChild) {
2036 element.removeChild(element.firstChild);
2038 var nodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
2039 nodes.each(function(node) { element.appendChild(node) });
2042 element.innerHTML = content.stripScripts();
2046 element.innerHTML = content.stripScripts();
2049 content.evalScripts.bind(content).defer();
2056 replace: function(element, content) {
2057 element = $(element);
2058 if (content && content.toElement) content = content.toElement();
2059 else if (!Object.isElement(content)) {
2060 content = Object.toHTML(content);
2061 var range = element.ownerDocument.createRange();
2062 range.selectNode(element);
2063 content.evalScripts.bind(content).defer();
2064 content = range.createContextualFragment(content.stripScripts());
2066 element.parentNode.replaceChild(content, element);
2070 insert: function(element, insertions) {
2071 element = $(element);
2073 if (Object.isString(insertions) || Object.isNumber(insertions) ||
2074 Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
2075 insertions = {bottom:insertions};
2077 var content, insert, tagName, childNodes;
2079 for (var position in insertions) {
2080 content = insertions[position];
2081 position = position.toLowerCase();
2082 insert = Element._insertionTranslations[position];
2084 if (content && content.toElement) content = content.toElement();
2085 if (Object.isElement(content)) {
2086 insert(element, content);
2090 content = Object.toHTML(content);
2092 tagName = ((position == 'before' || position == 'after')
2093 ? element.parentNode : element).tagName.toUpperCase();
2095 childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2097 if (position == 'top' || position == 'after') childNodes.reverse();
2098 childNodes.each(insert.curry(element));
2100 content.evalScripts.bind(content).defer();
2106 wrap: function(element, wrapper, attributes) {
2107 element = $(element);
2108 if (Object.isElement(wrapper))
2109 $(wrapper).writeAttribute(attributes || { });
2110 else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
2111 else wrapper = new Element('div', wrapper);
2112 if (element.parentNode)
2113 element.parentNode.replaceChild(wrapper, element);
2114 wrapper.appendChild(element);
2118 inspect: function(element) {
2119 element = $(element);
2120 var result = '<' + element.tagName.toLowerCase();
2121 $H({'id': 'id', 'className': 'class'}).each(function(pair) {
2122 var property = pair.first(),
2123 attribute = pair.last(),
2124 value = (element[property] || '').toString();
2125 if (value) result += ' ' + attribute + '=' + value.inspect(true);
2127 return result + '>';
2130 recursivelyCollect: function(element, property, maximumLength) {
2131 element = $(element);
2132 maximumLength = maximumLength || -1;
2135 while (element = element[property]) {
2136 if (element.nodeType == 1)
2137 elements.push(Element.extend(element));
2138 if (elements.length == maximumLength)
2145 ancestors: function(element) {
2146 return Element.recursivelyCollect(element, 'parentNode');
2149 descendants: function(element) {
2150 return Element.select(element, "*");
2153 firstDescendant: function(element) {
2154 element = $(element).firstChild;
2155 while (element && element.nodeType != 1) element = element.nextSibling;
2159 immediateDescendants: function(element) {
2160 var results = [], child = $(element).firstChild;
2162 if (child.nodeType === 1) {
2163 results.push(Element.extend(child));
2165 child = child.nextSibling;
2170 previousSiblings: function(element, maximumLength) {
2171 return Element.recursivelyCollect(element, 'previousSibling');
2174 nextSiblings: function(element) {
2175 return Element.recursivelyCollect(element, 'nextSibling');
2178 siblings: function(element) {
2179 element = $(element);
2180 return Element.previousSiblings(element).reverse()
2181 .concat(Element.nextSiblings(element));
2184 match: function(element, selector) {
2185 element = $(element);
2186 if (Object.isString(selector))
2187 return Prototype.Selector.match(element, selector);
2188 return selector.match(element);
2191 up: function(element, expression, index) {
2192 element = $(element);
2193 if (arguments.length == 1) return $(element.parentNode);
2194 var ancestors = Element.ancestors(element);
2195 return Object.isNumber(expression) ? ancestors[expression] :
2196 Prototype.Selector.find(ancestors, expression, index);
2199 down: function(element, expression, index) {
2200 element = $(element);
2201 if (arguments.length == 1) return Element.firstDescendant(element);
2202 return Object.isNumber(expression) ? Element.descendants(element)[expression] :
2203 Element.select(element, expression)[index || 0];
2206 previous: function(element, expression, index) {
2207 element = $(element);
2208 if (Object.isNumber(expression)) index = expression, expression = false;
2209 if (!Object.isNumber(index)) index = 0;
2212 return Prototype.Selector.find(element.previousSiblings(), expression, index);
2214 return element.recursivelyCollect("previousSibling", index + 1)[index];
2218 next: function(element, expression, index) {
2219 element = $(element);
2220 if (Object.isNumber(expression)) index = expression, expression = false;
2221 if (!Object.isNumber(index)) index = 0;
2224 return Prototype.Selector.find(element.nextSiblings(), expression, index);
2226 var maximumLength = Object.isNumber(index) ? index + 1 : 1;
2227 return element.recursivelyCollect("nextSibling", index + 1)[index];
2232 select: function(element) {
2233 element = $(element);
2234 var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
2235 return Prototype.Selector.select(expressions, element);
2238 adjacent: function(element) {
2239 element = $(element);
2240 var expressions = Array.prototype.slice.call(arguments, 1).join(', ');
2241 return Prototype.Selector.select(expressions, element.parentNode).without(element);
2244 identify: function(element) {
2245 element = $(element);
2246 var id = Element.readAttribute(element, 'id');
2248 do { id = 'anonymous_element_' + Element.idCounter++ } while ($(id));
2249 Element.writeAttribute(element, 'id', id);
2253 readAttribute: function(element, name) {
2254 element = $(element);
2255 if (Prototype.Browser.IE) {
2256 var t = Element._attributeTranslations.read;
2257 if (t.values[name]) return t.values[name](element, name);
2258 if (t.names[name]) name = t.names[name];
2259 if (name.include(':')) {
2260 return (!element.attributes || !element.attributes[name]) ? null :
2261 element.attributes[name].value;
2264 return element.getAttribute(name);
2267 writeAttribute: function(element, name, value) {
2268 element = $(element);
2269 var attributes = { }, t = Element._attributeTranslations.write;
2271 if (typeof name == 'object') attributes = name;
2272 else attributes[name] = Object.isUndefined(value) ? true : value;
2274 for (var attr in attributes) {
2275 name = t.names[attr] || attr;
2276 value = attributes[attr];
2277 if (t.values[attr]) name = t.values[attr](element, value);
2278 if (value === false || value === null)
2279 element.removeAttribute(name);
2280 else if (value === true)
2281 element.setAttribute(name, name);
2282 else element.setAttribute(name, value);
2287 getHeight: function(element) {
2288 return Element.getDimensions(element).height;
2291 getWidth: function(element) {
2292 return Element.getDimensions(element).width;
2295 classNames: function(element) {
2296 return new Element.ClassNames(element);
2299 hasClassName: function(element, className) {
2300 if (!(element = $(element))) return;
2301 var elementClassName = element.className;
2302 return (elementClassName.length > 0 && (elementClassName == className ||
2303 new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
2306 addClassName: function(element, className) {
2307 if (!(element = $(element))) return;
2308 if (!Element.hasClassName(element, className))
2309 element.className += (element.className ? ' ' : '') + className;
2313 removeClassName: function(element, className) {
2314 if (!(element = $(element))) return;
2315 element.className = element.className.replace(
2316 new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
2320 toggleClassName: function(element, className) {
2321 if (!(element = $(element))) return;
2322 return Element[Element.hasClassName(element, className) ?
2323 'removeClassName' : 'addClassName'](element, className);
2326 cleanWhitespace: function(element) {
2327 element = $(element);
2328 var node = element.firstChild;
2330 var nextNode = node.nextSibling;
2331 if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
2332 element.removeChild(node);
2338 empty: function(element) {
2339 return $(element).innerHTML.blank();
2342 descendantOf: function(element, ancestor) {
2343 element = $(element), ancestor = $(ancestor);
2345 if (element.compareDocumentPosition)
2346 return (element.compareDocumentPosition(ancestor) & 8) === 8;
2348 if (ancestor.contains)
2349 return ancestor.contains(element) && ancestor !== element;
2351 while (element = element.parentNode)
2352 if (element == ancestor) return true;
2357 scrollTo: function(element) {
2358 element = $(element);
2359 var pos = Element.cumulativeOffset(element);
2360 window.scrollTo(pos[0], pos[1]);
2364 getStyle: function(element, style) {
2365 element = $(element);
2366 style = style == 'float' ? 'cssFloat' : style.camelize();
2367 var value = element.style[style];
2368 if (!value || value == 'auto') {
2369 var css = document.defaultView.getComputedStyle(element, null);
2370 value = css ? css[style] : null;
2372 if (style == 'opacity') return value ? parseFloat(value) : 1.0;
2373 return value == 'auto' ? null : value;
2376 getOpacity: function(element) {
2377 return $(element).getStyle('opacity');
2380 setStyle: function(element, styles) {
2381 element = $(element);
2382 var elementStyle = element.style, match;
2383 if (Object.isString(styles)) {
2384 element.style.cssText += ';' + styles;
2385 return styles.include('opacity') ?
2386 element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
2388 for (var property in styles)
2389 if (property == 'opacity') element.setOpacity(styles[property]);
2391 elementStyle[(property == 'float' || property == 'cssFloat') ?
2392 (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
2393 property] = styles[property];
2398 setOpacity: function(element, value) {
2399 element = $(element);
2400 element.style.opacity = (value == 1 || value === '') ? '' :
2401 (value < 0.00001) ? 0 : value;
2405 makePositioned: function(element) {
2406 element = $(element);
2407 var pos = Element.getStyle(element, 'position');
2408 if (pos == 'static' || !pos) {
2409 element._madePositioned = true;
2410 element.style.position = 'relative';
2411 if (Prototype.Browser.Opera) {
2412 element.style.top = 0;
2413 element.style.left = 0;
2419 undoPositioned: function(element) {
2420 element = $(element);
2421 if (element._madePositioned) {
2422 element._madePositioned = undefined;
2423 element.style.position =
2425 element.style.left =
2426 element.style.bottom =
2427 element.style.right = '';
2432 makeClipping: function(element) {
2433 element = $(element);
2434 if (element._overflow) return element;
2435 element._overflow = Element.getStyle(element, 'overflow') || 'auto';
2436 if (element._overflow !== 'hidden')
2437 element.style.overflow = 'hidden';
2441 undoClipping: function(element) {
2442 element = $(element);
2443 if (!element._overflow) return element;
2444 element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
2445 element._overflow = null;
2449 clonePosition: function(element, source) {
2450 var options = Object.extend({
2457 }, arguments[2] || { });
2460 var p = Element.viewportOffset(source), delta = [0, 0], parent = null;
2462 element = $(element);
2464 if (Element.getStyle(element, 'position') == 'absolute') {
2465 parent = Element.getOffsetParent(element);
2466 delta = Element.viewportOffset(parent);
2469 if (parent == document.body) {
2470 delta[0] -= document.body.offsetLeft;
2471 delta[1] -= document.body.offsetTop;
2474 if (options.setLeft) element.style.left = (p[0] - delta[0] + options.offsetLeft) + 'px';
2475 if (options.setTop) element.style.top = (p[1] - delta[1] + options.offsetTop) + 'px';
2476 if (options.setWidth) element.style.width = source.offsetWidth + 'px';
2477 if (options.setHeight) element.style.height = source.offsetHeight + 'px';
2482 Object.extend(Element.Methods, {
2483 getElementsBySelector: Element.Methods.select,
2485 childElements: Element.Methods.immediateDescendants
2488 Element._attributeTranslations = {
2498 if (Prototype.Browser.Opera) {
2499 Element.Methods.getStyle = Element.Methods.getStyle.wrap(
2500 function(proceed, element, style) {
2502 case 'height': case 'width':
2503 if (!Element.visible(element)) return null;
2505 var dim = parseInt(proceed(element, style), 10);
2507 if (dim !== element['offset' + style.capitalize()])
2511 if (style === 'height') {
2512 properties = ['border-top-width', 'padding-top',
2513 'padding-bottom', 'border-bottom-width'];
2516 properties = ['border-left-width', 'padding-left',
2517 'padding-right', 'border-right-width'];
2519 return properties.inject(dim, function(memo, property) {
2520 var val = proceed(element, property);
2521 return val === null ? memo : memo - parseInt(val, 10);
2523 default: return proceed(element, style);
2528 Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
2529 function(proceed, element, attribute) {
2530 if (attribute === 'title') return element.title;
2531 return proceed(element, attribute);
2536 else if (Prototype.Browser.IE) {
2537 Element.Methods.getStyle = function(element, style) {
2538 element = $(element);
2539 style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
2540 var value = element.style[style];
2541 if (!value && element.currentStyle) value = element.currentStyle[style];
2543 if (style == 'opacity') {
2544 if (value = (element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
2545 if (value[1]) return parseFloat(value[1]) / 100;
2549 if (value == 'auto') {
2550 if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
2551 return element['offset' + style.capitalize()] + 'px';
2557 Element.Methods.setOpacity = function(element, value) {
2558 function stripAlpha(filter){
2559 return filter.replace(/alpha\([^\)]*\)/gi,'');
2561 element = $(element);
2562 var currentStyle = element.currentStyle;
2563 if ((currentStyle && !currentStyle.hasLayout) ||
2564 (!currentStyle && element.style.zoom == 'normal'))
2565 element.style.zoom = 1;
2567 var filter = element.getStyle('filter'), style = element.style;
2568 if (value == 1 || value === '') {
2569 (filter = stripAlpha(filter)) ?
2570 style.filter = filter : style.removeAttribute('filter');
2572 } else if (value < 0.00001) value = 0;
2573 style.filter = stripAlpha(filter) +
2574 'alpha(opacity=' + (value * 100) + ')';
2578 Element._attributeTranslations = (function(){
2580 var classProp = 'className',
2582 el = document.createElement('div');
2584 el.setAttribute(classProp, 'x');
2586 if (el.className !== 'x') {
2587 el.setAttribute('class', 'x');
2588 if (el.className === 'x') {
2589 classProp = 'class';
2594 el = document.createElement('label');
2595 el.setAttribute(forProp, 'x');
2596 if (el.htmlFor !== 'x') {
2597 el.setAttribute('htmlFor', 'x');
2598 if (el.htmlFor === 'x') {
2599 forProp = 'htmlFor';
2608 'className': classProp,
2613 _getAttr: function(element, attribute) {
2614 return element.getAttribute(attribute);
2616 _getAttr2: function(element, attribute) {
2617 return element.getAttribute(attribute, 2);
2619 _getAttrNode: function(element, attribute) {
2620 var node = element.getAttributeNode(attribute);
2621 return node ? node.value : "";
2623 _getEv: (function(){
2625 var el = document.createElement('div'), f;
2626 el.onclick = Prototype.emptyFunction;
2627 var value = el.getAttribute('onclick');
2629 if (String(value).indexOf('{') > -1) {
2630 f = function(element, attribute) {
2631 attribute = element.getAttribute(attribute);
2632 if (!attribute) return null;
2633 attribute = attribute.toString();
2634 attribute = attribute.split('{')[1];
2635 attribute = attribute.split('}')[0];
2636 return attribute.strip();
2639 else if (value === '') {
2640 f = function(element, attribute) {
2641 attribute = element.getAttribute(attribute);
2642 if (!attribute) return null;
2643 return attribute.strip();
2649 _flag: function(element, attribute) {
2650 return $(element).hasAttribute(attribute) ? attribute : null;
2652 style: function(element) {
2653 return element.style.cssText.toLowerCase();
2655 title: function(element) {
2656 return element.title;
2663 Element._attributeTranslations.write = {
2664 names: Object.extend({
2665 cellpadding: 'cellPadding',
2666 cellspacing: 'cellSpacing'
2667 }, Element._attributeTranslations.read.names),
2669 checked: function(element, value) {
2670 element.checked = !!value;
2673 style: function(element, value) {
2674 element.style.cssText = value ? value : '';
2679 Element._attributeTranslations.has = {};
2681 $w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
2682 'encType maxLength readOnly longDesc frameBorder').each(function(attr) {
2683 Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
2684 Element._attributeTranslations.has[attr.toLowerCase()] = attr;
2692 action: v._getAttrNode,
2700 ondblclick: v._getEv,
2701 onmousedown: v._getEv,
2702 onmouseup: v._getEv,
2703 onmouseover: v._getEv,
2704 onmousemove: v._getEv,
2705 onmouseout: v._getEv,
2708 onkeypress: v._getEv,
2709 onkeydown: v._getEv,
2716 })(Element._attributeTranslations.read.values);
2718 if (Prototype.BrowserFeatures.ElementExtensions) {
2720 function _descendants(element) {
2721 var nodes = element.getElementsByTagName('*'), results = [];
2722 for (var i = 0, node; node = nodes[i]; i++)
2723 if (node.tagName !== "!") // Filter out comment nodes.
2728 Element.Methods.down = function(element, expression, index) {
2729 element = $(element);
2730 if (arguments.length == 1) return element.firstDescendant();
2731 return Object.isNumber(expression) ? _descendants(element)[expression] :
2732 Element.select(element, expression)[index || 0];
2739 else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
2740 Element.Methods.setOpacity = function(element, value) {
2741 element = $(element);
2742 element.style.opacity = (value == 1) ? 0.999999 :
2743 (value === '') ? '' : (value < 0.00001) ? 0 : value;
2748 else if (Prototype.Browser.WebKit) {
2749 Element.Methods.setOpacity = function(element, value) {
2750 element = $(element);
2751 element.style.opacity = (value == 1 || value === '') ? '' :
2752 (value < 0.00001) ? 0 : value;
2755 if (element.tagName.toUpperCase() == 'IMG' && element.width) {
2756 element.width++; element.width--;
2758 var n = document.createTextNode(' ');
2759 element.appendChild(n);
2760 element.removeChild(n);
2767 if ('outerHTML' in document.documentElement) {
2768 Element.Methods.replace = function(element, content) {
2769 element = $(element);
2771 if (content && content.toElement) content = content.toElement();
2772 if (Object.isElement(content)) {
2773 element.parentNode.replaceChild(content, element);
2777 content = Object.toHTML(content);
2778 var parent = element.parentNode, tagName = parent.tagName.toUpperCase();
2780 if (Element._insertionTranslations.tags[tagName]) {
2781 var nextSibling = element.next(),
2782 fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
2783 parent.removeChild(element);
2785 fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
2787 fragments.each(function(node) { parent.appendChild(node) });
2789 else element.outerHTML = content.stripScripts();
2791 content.evalScripts.bind(content).defer();
2796 Element._returnOffset = function(l, t) {
2797 var result = [l, t];
2803 Element._getContentFromAnonymousElement = function(tagName, html, force) {
2804 var div = new Element('div'),
2805 t = Element._insertionTranslations.tags[tagName];
2807 var workaround = false;
2808 if (t) workaround = true;
2815 div.innerHTML = ' ' + t[0] + html + t[1];
2816 div.removeChild(div.firstChild);
2817 for (var i = t[2]; i--; ) {
2818 div = div.firstChild;
2822 div.innerHTML = html;
2824 return $A(div.childNodes);
2827 Element._insertionTranslations = {
2828 before: function(element, node) {
2829 element.parentNode.insertBefore(node, element);
2831 top: function(element, node) {
2832 element.insertBefore(node, element.firstChild);
2834 bottom: function(element, node) {
2835 element.appendChild(node);
2837 after: function(element, node) {
2838 element.parentNode.insertBefore(node, element.nextSibling);
2841 TABLE: ['<table>', '</table>', 1],
2842 TBODY: ['<table><tbody>', '</tbody></table>', 2],
2843 TR: ['<table><tbody><tr>', '</tr></tbody></table>', 3],
2844 TD: ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
2845 SELECT: ['<select>', '</select>', 1]
2850 var tags = Element._insertionTranslations.tags;
2851 Object.extend(tags, {
2858 Element.Methods.Simulated = {
2859 hasAttribute: function(element, attribute) {
2860 attribute = Element._attributeTranslations.has[attribute] || attribute;
2861 var node = $(element).getAttributeNode(attribute);
2862 return !!(node && node.specified);
2866 Element.Methods.ByTag = { };
2868 Object.extend(Element, Element.Methods);
2872 if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']) {
2873 window.HTMLElement = { };
2874 window.HTMLElement.prototype = div['__proto__'];
2875 Prototype.BrowserFeatures.ElementExtensions = true;
2880 })(document.createElement('div'));
2882 Element.extend = (function() {
2884 function checkDeficiency(tagName) {
2885 if (typeof window.Element != 'undefined') {
2886 var proto = window.Element.prototype;
2888 var id = '_' + (Math.random()+'').slice(2),
2889 el = document.createElement(tagName);
2891 var isBuggy = (el[id] !== 'x');
2900 function extendElementWith(element, methods) {
2901 for (var property in methods) {
2902 var value = methods[property];
2903 if (Object.isFunction(value) && !(property in element))
2904 element[property] = value.methodize();
2908 var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY = checkDeficiency('object');
2910 if (Prototype.BrowserFeatures.SpecificElementExtensions) {
2911 if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY) {
2912 return function(element) {
2913 if (element && typeof element._extendedByPrototype == 'undefined') {
2914 var t = element.tagName;
2915 if (t && (/^(?:object|applet|embed)$/i.test(t))) {
2916 extendElementWith(element, Element.Methods);
2917 extendElementWith(element, Element.Methods.Simulated);
2918 extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
2927 var Methods = { }, ByTag = Element.Methods.ByTag;
2929 var extend = Object.extend(function(element) {
2930 if (!element || typeof element._extendedByPrototype != 'undefined' ||
2931 element.nodeType != 1 || element == window) return element;
2933 var methods = Object.clone(Methods),
2934 tagName = element.tagName.toUpperCase();
2936 if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
2938 extendElementWith(element, methods);
2940 element._extendedByPrototype = Prototype.emptyFunction;
2944 refresh: function() {
2945 if (!Prototype.BrowserFeatures.ElementExtensions) {
2946 Object.extend(Methods, Element.Methods);
2947 Object.extend(Methods, Element.Methods.Simulated);
2956 if (document.documentElement.hasAttribute) {
2957 Element.hasAttribute = function(element, attribute) {
2958 return element.hasAttribute(attribute);
2962 Element.hasAttribute = Element.Methods.Simulated.hasAttribute;
2965 Element.addMethods = function(methods) {
2966 var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;
2969 Object.extend(Form, Form.Methods);
2970 Object.extend(Form.Element, Form.Element.Methods);
2971 Object.extend(Element.Methods.ByTag, {
2972 "FORM": Object.clone(Form.Methods),
2973 "INPUT": Object.clone(Form.Element.Methods),
2974 "SELECT": Object.clone(Form.Element.Methods),
2975 "TEXTAREA": Object.clone(Form.Element.Methods),
2976 "BUTTON": Object.clone(Form.Element.Methods)
2980 if (arguments.length == 2) {
2981 var tagName = methods;
2982 methods = arguments[1];
2985 if (!tagName) Object.extend(Element.Methods, methods || { });
2987 if (Object.isArray(tagName)) tagName.each(extend);
2988 else extend(tagName);
2991 function extend(tagName) {
2992 tagName = tagName.toUpperCase();
2993 if (!Element.Methods.ByTag[tagName])
2994 Element.Methods.ByTag[tagName] = { };
2995 Object.extend(Element.Methods.ByTag[tagName], methods);
2998 function copy(methods, destination, onlyIfAbsent) {
2999 onlyIfAbsent = onlyIfAbsent || false;
3000 for (var property in methods) {
3001 var value = methods[property];
3002 if (!Object.isFunction(value)) continue;
3003 if (!onlyIfAbsent || !(property in destination))
3004 destination[property] = value.methodize();
3008 function findDOMClass(tagName) {
3011 "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
3012 "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
3013 "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
3014 "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
3015 "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
3016 "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
3017 "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
3018 "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
3019 "FrameSet", "IFRAME": "IFrame"
3021 if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
3022 if (window[klass]) return window[klass];
3023 klass = 'HTML' + tagName + 'Element';
3024 if (window[klass]) return window[klass];
3025 klass = 'HTML' + tagName.capitalize() + 'Element';
3026 if (window[klass]) return window[klass];
3028 var element = document.createElement(tagName),
3029 proto = element['__proto__'] || element.constructor.prototype;
3035 var elementPrototype = window.HTMLElement ? HTMLElement.prototype :
3038 if (F.ElementExtensions) {
3039 copy(Element.Methods, elementPrototype);
3040 copy(Element.Methods.Simulated, elementPrototype, true);
3043 if (F.SpecificElementExtensions) {
3044 for (var tag in Element.Methods.ByTag) {
3045 var klass = findDOMClass(tag);
3046 if (Object.isUndefined(klass)) continue;
3047 copy(T[tag], klass.prototype);
3051 Object.extend(Element, Element.Methods);
3052 delete Element.ByTag;
3054 if (Element.extend.refresh) Element.extend.refresh();
3055 Element.cache = { };
3059 document.viewport = {
3061 getDimensions: function() {
3062 return { width: this.getWidth(), height: this.getHeight() };
3065 getScrollOffsets: function() {
3066 return Element._returnOffset(
3067 window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
3068 window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
3072 (function(viewport) {
3073 var B = Prototype.Browser, doc = document, element, property = {};
3075 function getRootElement() {
3076 if (B.WebKit && !doc.evaluate)
3079 if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
3080 return document.body;
3082 return document.documentElement;
3085 function define(D) {
3086 if (!element) element = getRootElement();
3088 property[D] = 'client' + D;
3090 viewport['get' + D] = function() { return element[property[D]] };
3091 return viewport['get' + D]();
3094 viewport.getWidth = define.curry('Width');
3096 viewport.getHeight = define.curry('Height');
3097 })(document.viewport);
3104 Element.addMethods({
3105 getStorage: function(element) {
3106 if (!(element = $(element))) return;
3109 if (element === window) {
3112 if (typeof element._prototypeUID === "undefined")
3113 element._prototypeUID = Element.Storage.UID++;
3114 uid = element._prototypeUID;
3117 if (!Element.Storage[uid])
3118 Element.Storage[uid] = $H();
3120 return Element.Storage[uid];
3123 store: function(element, key, value) {
3124 if (!(element = $(element))) return;
3126 if (arguments.length === 2) {
3127 Element.getStorage(element).update(key);
3129 Element.getStorage(element).set(key, value);
3135 retrieve: function(element, key, defaultValue) {
3136 if (!(element = $(element))) return;
3137 var hash = Element.getStorage(element), value = hash.get(key);
3139 if (Object.isUndefined(value)) {
3140 hash.set(key, defaultValue);
3141 value = defaultValue;
3147 clone: function(element, deep) {
3148 if (!(element = $(element))) return;
3149 var clone = element.cloneNode(deep);
3150 clone._prototypeUID = void 0;
3152 var descendants = Element.select(clone, '*'),
3153 i = descendants.length;
3155 descendants[i]._prototypeUID = void 0;
3158 return Element.extend(clone);
3161 purge: function(element) {
3162 if (!(element = $(element))) return;
3163 var purgeElement = Element._purgeElement;
3165 purgeElement(element);
3167 var descendants = element.getElementsByTagName('*'),
3168 i = descendants.length;
3170 while (i--) purgeElement(descendants[i]);
3178 function toDecimal(pctString) {
3179 var match = pctString.match(/^(\d+)%?$/i);
3180 if (!match) return null;
3181 return (Number(match[1]) / 100);
3184 function getPixelValue(value, property, context) {
3186 if (Object.isElement(value)) {
3188 value = element.getStyle(property);
3191 if (value === null) {
3195 if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)) {
3196 return window.parseFloat(value);
3199 var isPercentage = value.include('%'), isViewport = (context === document.viewport);
3201 if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport)) {
3202 var style = element.style.left, rStyle = element.runtimeStyle.left;
3203 element.runtimeStyle.left = element.currentStyle.left;
3204 element.style.left = value || 0;
3205 value = element.style.pixelLeft;
3206 element.style.left = style;
3207 element.runtimeStyle.left = rStyle;
3212 if (element && isPercentage) {
3213 context = context || element.parentNode;
3214 var decimal = toDecimal(value);
3216 var position = element.getStyle('position');
3218 var isHorizontal = property.include('left') || property.include('right') ||
3219 property.include('width');
3221 var isVertical = property.include('top') || property.include('bottom') ||
3222 property.include('height');
3224 if (context === document.viewport) {
3226 whole = document.viewport.getWidth();
3227 } else if (isVertical) {
3228 whole = document.viewport.getHeight();
3232 whole = $(context).measure('width');
3233 } else if (isVertical) {
3234 whole = $(context).measure('height');
3238 return (whole === null) ? 0 : whole * decimal;
3244 function toCSSPixels(number) {
3245 if (Object.isString(number) && number.endsWith('px')) {
3248 return number + 'px';
3251 function isDisplayed(element) {
3252 var originalElement = element;
3253 while (element && element.parentNode) {
3254 var display = element.getStyle('display');
3255 if (display === 'none') {
3258 element = $(element.parentNode);
3263 var hasLayout = Prototype.K;
3264 if ('currentStyle' in document.documentElement) {
3265 hasLayout = function(element) {
3266 if (!element.currentStyle.hasLayout) {
3267 element.style.zoom = 1;
3273 function cssNameFor(key) {
3274 if (key.include('border')) key = key + '-width';
3275 return key.camelize();
3278 Element.Layout = Class.create(Hash, {
3279 initialize: function($super, element, preCompute) {
3281 this.element = $(element);
3283 Element.Layout.PROPERTIES.each( function(property) {
3284 this._set(property, null);
3288 this._preComputing = true;
3290 Element.Layout.PROPERTIES.each( this._compute, this );
3292 this._preComputing = false;
3296 _set: function(property, value) {
3297 return Hash.prototype.set.call(this, property, value);
3300 set: function(property, value) {
3301 throw "Properties of Element.Layout are read-only.";
3304 get: function($super, property) {
3305 var value = $super(property);
3306 return value === null ? this._compute(property) : value;
3309 _begin: function() {
3310 if (this._prepared) return;
3312 var element = this.element;
3313 if (isDisplayed(element)) {
3314 this._prepared = true;
3318 var originalStyles = {
3319 position: element.style.position || '',
3320 width: element.style.width || '',
3321 visibility: element.style.visibility || '',
3322 display: element.style.display || ''
3325 element.store('prototype_original_styles', originalStyles);
3327 var position = element.getStyle('position'),
3328 width = element.getStyle('width');
3330 if (width === "0px" || width === null) {
3331 element.style.display = 'block';
3332 width = element.getStyle('width');
3335 var context = (position === 'fixed') ? document.viewport :
3339 position: 'absolute',
3340 visibility: 'hidden',
3344 var positionedWidth = element.getStyle('width');
3347 if (width && (positionedWidth === width)) {
3348 newWidth = getPixelValue(element, 'width', context);
3349 } else if (position === 'absolute' || position === 'fixed') {
3350 newWidth = getPixelValue(element, 'width', context);
3352 var parent = element.parentNode, pLayout = $(parent).getLayout();
3354 newWidth = pLayout.get('width') -
3355 this.get('margin-left') -
3356 this.get('border-left') -
3357 this.get('padding-left') -
3358 this.get('padding-right') -
3359 this.get('border-right') -
3360 this.get('margin-right');
3363 element.setStyle({ width: newWidth + 'px' });
3365 this._prepared = true;
3369 var element = this.element;
3370 var originalStyles = element.retrieve('prototype_original_styles');
3371 element.store('prototype_original_styles', null);
3372 element.setStyle(originalStyles);
3373 this._prepared = false;
3376 _compute: function(property) {
3377 var COMPUTATIONS = Element.Layout.COMPUTATIONS;
3378 if (!(property in COMPUTATIONS)) {
3379 throw "Property not found.";
3382 return this._set(property, COMPUTATIONS[property].call(this, this.element));
3385 toObject: function() {
3386 var args = $A(arguments);
3387 var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
3388 args.join(' ').split(' ');
3390 keys.each( function(key) {
3391 if (!Element.Layout.PROPERTIES.include(key)) return;
3392 var value = this.get(key);
3393 if (value != null) obj[key] = value;
3398 toHash: function() {
3399 var obj = this.toObject.apply(this, arguments);
3400 return new Hash(obj);
3404 var args = $A(arguments);
3405 var keys = (args.length === 0) ? Element.Layout.PROPERTIES :
3406 args.join(' ').split(' ');
3409 keys.each( function(key) {
3410 if (!Element.Layout.PROPERTIES.include(key)) return;
3411 if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;
3413 var value = this.get(key);
3414 if (value != null) css[cssNameFor(key)] = value + 'px';
3419 inspect: function() {
3420 return "#<Element.Layout>";
3424 Object.extend(Element.Layout, {
3425 PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),
3427 COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),
3430 'height': function(element) {
3431 if (!this._preComputing) this._begin();
3433 var bHeight = this.get('border-box-height');
3435 if (!this._preComputing) this._end();
3439 var bTop = this.get('border-top'),
3440 bBottom = this.get('border-bottom');
3442 var pTop = this.get('padding-top'),
3443 pBottom = this.get('padding-bottom');
3445 if (!this._preComputing) this._end();
3447 return bHeight - bTop - bBottom - pTop - pBottom;
3450 'width': function(element) {
3451 if (!this._preComputing) this._begin();
3453 var bWidth = this.get('border-box-width');
3455 if (!this._preComputing) this._end();
3459 var bLeft = this.get('border-left'),
3460 bRight = this.get('border-right');
3462 var pLeft = this.get('padding-left'),
3463 pRight = this.get('padding-right');
3465 if (!this._preComputing) this._end();
3467 return bWidth - bLeft - bRight - pLeft - pRight;
3470 'padding-box-height': function(element) {
3471 var height = this.get('height'),
3472 pTop = this.get('padding-top'),
3473 pBottom = this.get('padding-bottom');
3475 return height + pTop + pBottom;
3478 'padding-box-width': function(element) {
3479 var width = this.get('width'),
3480 pLeft = this.get('padding-left'),
3481 pRight = this.get('padding-right');
3483 return width + pLeft + pRight;
3486 'border-box-height': function(element) {
3487 if (!this._preComputing) this._begin();
3488 var height = element.offsetHeight;
3489 if (!this._preComputing) this._end();
3493 'border-box-width': function(element) {
3494 if (!this._preComputing) this._begin();
3495 var width = element.offsetWidth;
3496 if (!this._preComputing) this._end();
3500 'margin-box-height': function(element) {
3501 var bHeight = this.get('border-box-height'),
3502 mTop = this.get('margin-top'),
3503 mBottom = this.get('margin-bottom');
3505 if (bHeight <= 0) return 0;
3507 return bHeight + mTop + mBottom;
3510 'margin-box-width': function(element) {
3511 var bWidth = this.get('border-box-width'),
3512 mLeft = this.get('margin-left'),
3513 mRight = this.get('margin-right');
3515 if (bWidth <= 0) return 0;
3517 return bWidth + mLeft + mRight;
3520 'top': function(element) {
3521 var offset = element.positionedOffset();
3525 'bottom': function(element) {
3526 var offset = element.positionedOffset(),
3527 parent = element.getOffsetParent(),
3528 pHeight = parent.measure('height');
3530 var mHeight = this.get('border-box-height');
3532 return pHeight - mHeight - offset.top;
3535 'left': function(element) {
3536 var offset = element.positionedOffset();
3540 'right': function(element) {
3541 var offset = element.positionedOffset(),
3542 parent = element.getOffsetParent(),
3543 pWidth = parent.measure('width');
3545 var mWidth = this.get('border-box-width');
3547 return pWidth - mWidth - offset.left;
3550 'padding-top': function(element) {
3551 return getPixelValue(element, 'paddingTop');
3554 'padding-bottom': function(element) {
3555 return getPixelValue(element, 'paddingBottom');
3558 'padding-left': function(element) {
3559 return getPixelValue(element, 'paddingLeft');
3562 'padding-right': function(element) {
3563 return getPixelValue(element, 'paddingRight');
3566 'border-top': function(element) {
3567 return getPixelValue(element, 'borderTopWidth');
3570 'border-bottom': function(element) {
3571 return getPixelValue(element, 'borderBottomWidth');
3574 'border-left': function(element) {
3575 return getPixelValue(element, 'borderLeftWidth');
3578 'border-right': function(element) {
3579 return getPixelValue(element, 'borderRightWidth');
3582 'margin-top': function(element) {
3583 return getPixelValue(element, 'marginTop');
3586 'margin-bottom': function(element) {
3587 return getPixelValue(element, 'marginBottom');
3590 'margin-left': function(element) {
3591 return getPixelValue(element, 'marginLeft');
3594 'margin-right': function(element) {
3595 return getPixelValue(element, 'marginRight');
3600 if ('getBoundingClientRect' in document.documentElement) {
3601 Object.extend(Element.Layout.COMPUTATIONS, {
3602 'right': function(element) {
3603 var parent = hasLayout(element.getOffsetParent());
3604 var rect = element.getBoundingClientRect(),
3605 pRect = parent.getBoundingClientRect();
3607 return (pRect.right - rect.right).round();
3610 'bottom': function(element) {
3611 var parent = hasLayout(element.getOffsetParent());
3612 var rect = element.getBoundingClientRect(),
3613 pRect = parent.getBoundingClientRect();
3615 return (pRect.bottom - rect.bottom).round();
3620 Element.Offset = Class.create({
3621 initialize: function(left, top) {
3622 this.left = left.round();
3623 this.top = top.round();
3625 this[0] = this.left;
3629 relativeTo: function(offset) {
3630 return new Element.Offset(
3631 this.left - offset.left,
3632 this.top - offset.top
3636 inspect: function() {
3637 return "#<Element.Offset left: #{left} top: #{top}>".interpolate(this);
3640 toString: function() {
3641 return "[#{left}, #{top}]".interpolate(this);
3644 toArray: function() {
3645 return [this.left, this.top];
3649 function getLayout(element, preCompute) {
3650 return new Element.Layout(element, preCompute);
3653 function measure(element, property) {
3654 return $(element).getLayout().get(property);
3657 function getDimensions(element) {
3658 element = $(element);
3659 var display = Element.getStyle(element, 'display');
3661 if (display && display !== 'none') {
3662 return { width: element.offsetWidth, height: element.offsetHeight };
3665 var style = element.style;
3666 var originalStyles = {
3667 visibility: style.visibility,
3668 position: style.position,
3669 display: style.display
3673 visibility: 'hidden',
3677 if (originalStyles.position !== 'fixed')
3678 newStyles.position = 'absolute';
3680 Element.setStyle(element, newStyles);
3683 width: element.offsetWidth,
3684 height: element.offsetHeight
3687 Element.setStyle(element, originalStyles);
3692 function getOffsetParent(element) {
3693 element = $(element);
3695 if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
3696 return $(document.body);
3698 var isInline = (Element.getStyle(element, 'display') === 'inline');
3699 if (!isInline && element.offsetParent) return $(element.offsetParent);
3701 while ((element = element.parentNode) && element !== document.body) {
3702 if (Element.getStyle(element, 'position') !== 'static') {
3703 return isHtml(element) ? $(document.body) : $(element);
3707 return $(document.body);
3711 function cumulativeOffset(element) {
3712 element = $(element);
3713 var valueT = 0, valueL = 0;
3714 if (element.parentNode) {
3716 valueT += element.offsetTop || 0;
3717 valueL += element.offsetLeft || 0;
3718 element = element.offsetParent;
3721 return new Element.Offset(valueL, valueT);
3724 function positionedOffset(element) {
3725 element = $(element);
3727 var layout = element.getLayout();
3729 var valueT = 0, valueL = 0;
3731 valueT += element.offsetTop || 0;
3732 valueL += element.offsetLeft || 0;
3733 element = element.offsetParent;
3735 if (isBody(element)) break;
3736 var p = Element.getStyle(element, 'position');
3737 if (p !== 'static') break;
3741 valueL -= layout.get('margin-top');
3742 valueT -= layout.get('margin-left');
3744 return new Element.Offset(valueL, valueT);
3747 function cumulativeScrollOffset(element) {
3748 var valueT = 0, valueL = 0;
3750 valueT += element.scrollTop || 0;
3751 valueL += element.scrollLeft || 0;
3752 element = element.parentNode;
3754 return new Element.Offset(valueL, valueT);
3757 function viewportOffset(forElement) {
3758 element = $(element);
3759 var valueT = 0, valueL = 0, docBody = document.body;
3761 var element = forElement;
3763 valueT += element.offsetTop || 0;
3764 valueL += element.offsetLeft || 0;
3765 if (element.offsetParent == docBody &&
3766 Element.getStyle(element, 'position') == 'absolute') break;
3767 } while (element = element.offsetParent);
3769 element = forElement;
3771 if (element != docBody) {
3772 valueT -= element.scrollTop || 0;
3773 valueL -= element.scrollLeft || 0;
3775 } while (element = element.parentNode);
3776 return new Element.Offset(valueL, valueT);
3779 function absolutize(element) {
3780 element = $(element);
3782 if (Element.getStyle(element, 'position') === 'absolute') {
3786 var offsetParent = getOffsetParent(element);
3787 var eOffset = element.viewportOffset(),
3788 pOffset = offsetParent.viewportOffset();
3790 var offset = eOffset.relativeTo(pOffset);
3791 var layout = element.getLayout();
3793 element.store('prototype_absolutize_original_styles', {
3794 left: element.getStyle('left'),
3795 top: element.getStyle('top'),
3796 width: element.getStyle('width'),
3797 height: element.getStyle('height')
3801 position: 'absolute',
3802 top: offset.top + 'px',
3803 left: offset.left + 'px',
3804 width: layout.get('width') + 'px',
3805 height: layout.get('height') + 'px'
3811 function relativize(element) {
3812 element = $(element);
3813 if (Element.getStyle(element, 'position') === 'relative') {
3817 var originalStyles =
3818 element.retrieve('prototype_absolutize_original_styles');
3820 if (originalStyles) element.setStyle(originalStyles);
3824 if (Prototype.Browser.IE) {
3825 getOffsetParent = getOffsetParent.wrap(
3826 function(proceed, element) {
3827 element = $(element);
3829 if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
3830 return $(document.body);
3832 var position = element.getStyle('position');
3833 if (position !== 'static') return proceed(element);
3835 element.setStyle({ position: 'relative' });
3836 var value = proceed(element);
3837 element.setStyle({ position: position });
3842 positionedOffset = positionedOffset.wrap(function(proceed, element) {
3843 element = $(element);
3844 if (!element.parentNode) return new Element.Offset(0, 0);
3845 var position = element.getStyle('position');
3846 if (position !== 'static') return proceed(element);
3848 var offsetParent = element.getOffsetParent();
3849 if (offsetParent && offsetParent.getStyle('position') === 'fixed')
3850 hasLayout(offsetParent);
3852 element.setStyle({ position: 'relative' });
3853 var value = proceed(element);
3854 element.setStyle({ position: position });
3857 } else if (Prototype.Browser.Webkit) {
3858 cumulativeOffset = function(element) {
3859 element = $(element);
3860 var valueT = 0, valueL = 0;
3862 valueT += element.offsetTop || 0;
3863 valueL += element.offsetLeft || 0;
3864 if (element.offsetParent == document.body)
3865 if (Element.getStyle(element, 'position') == 'absolute') break;
3867 element = element.offsetParent;
3870 return new Element.Offset(valueL, valueT);
3875 Element.addMethods({
3876 getLayout: getLayout,
3878 getDimensions: getDimensions,
3879 getOffsetParent: getOffsetParent,
3880 cumulativeOffset: cumulativeOffset,
3881 positionedOffset: positionedOffset,
3882 cumulativeScrollOffset: cumulativeScrollOffset,
3883 viewportOffset: viewportOffset,
3884 absolutize: absolutize,
3885 relativize: relativize
3888 function isBody(element) {
3889 return element.nodeName.toUpperCase() === 'BODY';
3892 function isHtml(element) {
3893 return element.nodeName.toUpperCase() === 'HTML';
3896 function isDocument(element) {
3897 return element.nodeType === Node.DOCUMENT_NODE;
3900 function isDetached(element) {
3901 return element !== document.body &&
3902 !Element.descendantOf(element, document.body);
3905 if ('getBoundingClientRect' in document.documentElement) {
3906 Element.addMethods({
3907 viewportOffset: function(element) {
3908 element = $(element);
3909 if (isDetached(element)) return new Element.Offset(0, 0);
3911 var rect = element.getBoundingClientRect(),
3912 docEl = document.documentElement;
3913 return new Element.Offset(rect.left - docEl.clientLeft,
3914 rect.top - docEl.clientTop);
3919 window.$$ = function() {
3920 var expression = $A(arguments).join(', ');
3921 return Prototype.Selector.select(expression, document);
3924 Prototype.Selector = (function() {
3927 throw new Error('Method "Prototype.Selector.select" must be defined.');
3931 throw new Error('Method "Prototype.Selector.match" must be defined.');
3934 function find(elements, expression, index) {
3936 var match = Prototype.Selector.match, length = elements.length, matchIndex = 0, i;
3938 for (i = 0; i < length; i++) {
3939 if (match(elements[i], expression) && index == matchIndex++) {
3940 return Element.extend(elements[i]);
3945 function extendElements(elements) {
3946 for (var i = 0, length = elements.length; i < length; i++) {
3947 Element.extend(elements[i]);
3953 var K = Prototype.K;
3959 extendElements: (Element.extend === K) ? K : extendElements,
3960 extendElement: Element.extend
3964 * Sizzle CSS Selector Engine - v1.0
3965 * Copyright 2009, The Dojo Foundation
3966 * Released under the MIT, BSD, and GPL Licenses.
3967 * More information: http://sizzlejs.com/
3971 var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
3973 toString = Object.prototype.toString,
3974 hasDuplicate = false,
3975 baseHasDuplicate = true;
3977 [0, 0].sort(function(){
3978 baseHasDuplicate = false;
3982 var Sizzle = function(selector, context, results, seed) {
3983 results = results || [];
3984 var origContext = context = context || document;
3986 if ( context.nodeType !== 1 && context.nodeType !== 9 ) {
3990 if ( !selector || typeof selector !== "string" ) {
3994 var parts = [], m, set, checkSet, check, mode, extra, prune = true, contextXML = isXML(context),
3997 while ( (chunker.exec(""), m = chunker.exec(soFar)) !== null ) {
4008 if ( parts.length > 1 && origPOS.exec( selector ) ) {
4009 if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
4010 set = posProcess( parts[0] + parts[1], context );
4012 set = Expr.relative[ parts[0] ] ?
4014 Sizzle( parts.shift(), context );
4016 while ( parts.length ) {
4017 selector = parts.shift();
4019 if ( Expr.relative[ selector ] )
4020 selector += parts.shift();
4022 set = posProcess( selector, set );
4026 if ( !seed && parts.length > 1 && context.nodeType === 9 && !contextXML &&
4027 Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ) {
4028 var ret = Sizzle.find( parts.shift(), context, contextXML );
4029 context = ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
4034 { expr: parts.pop(), set: makeArray(seed) } :
4035 Sizzle.find( parts.pop(), parts.length === 1 && (parts[0] === "~" || parts[0] === "+") && context.parentNode ? context.parentNode : context, contextXML );
4036 set = ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
4038 if ( parts.length > 0 ) {
4039 checkSet = makeArray(set);
4044 while ( parts.length ) {
4045 var cur = parts.pop(), pop = cur;
4047 if ( !Expr.relative[ cur ] ) {
4053 if ( pop == null ) {
4057 Expr.relative[ cur ]( checkSet, pop, contextXML );
4060 checkSet = parts = [];
4069 throw "Syntax error, unrecognized expression: " + (cur || selector);
4072 if ( toString.call(checkSet) === "[object Array]" ) {
4074 results.push.apply( results, checkSet );
4075 } else if ( context && context.nodeType === 1 ) {
4076 for ( var i = 0; checkSet[i] != null; i++ ) {
4077 if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
4078 results.push( set[i] );
4082 for ( var i = 0; checkSet[i] != null; i++ ) {
4083 if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
4084 results.push( set[i] );
4089 makeArray( checkSet, results );
4093 Sizzle( extra, origContext, results, seed );
4094 Sizzle.uniqueSort( results );
4100 Sizzle.uniqueSort = function(results){
4102 hasDuplicate = baseHasDuplicate;
4103 results.sort(sortOrder);
4105 if ( hasDuplicate ) {
4106 for ( var i = 1; i < results.length; i++ ) {
4107 if ( results[i] === results[i-1] ) {
4108 results.splice(i--, 1);
4117 Sizzle.matches = function(expr, set){
4118 return Sizzle(expr, null, null, set);
4121 Sizzle.find = function(expr, context, isXML){
4128 for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
4129 var type = Expr.order[i], match;
4131 if ( (match = Expr.leftMatch[ type ].exec( expr )) ) {
4132 var left = match[1];
4135 if ( left.substr( left.length - 1 ) !== "\\" ) {
4136 match[1] = (match[1] || "").replace(/\\/g, "");
4137 set = Expr.find[ type ]( match, context, isXML );
4138 if ( set != null ) {
4139 expr = expr.replace( Expr.match[ type ], "" );
4147 set = context.getElementsByTagName("*");
4150 return {set: set, expr: expr};
4153 Sizzle.filter = function(expr, set, inplace, not){
4154 var old = expr, result = [], curLoop = set, match, anyFound,
4155 isXMLFilter = set && set[0] && isXML(set[0]);
4157 while ( expr && set.length ) {
4158 for ( var type in Expr.filter ) {
4159 if ( (match = Expr.match[ type ].exec( expr )) != null ) {
4160 var filter = Expr.filter[ type ], found, item;
4163 if ( curLoop == result ) {
4167 if ( Expr.preFilter[ type ] ) {
4168 match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
4171 anyFound = found = true;
4172 } else if ( match === true ) {
4178 for ( var i = 0; (item = curLoop[i]) != null; i++ ) {
4180 found = filter( item, match, i, curLoop );
4181 var pass = not ^ !!found;
4183 if ( inplace && found != null ) {
4189 } else if ( pass ) {
4190 result.push( item );
4197 if ( found !== undefined ) {
4202 expr = expr.replace( Expr.match[ type ], "" );
4213 if ( expr == old ) {
4214 if ( anyFound == null ) {
4215 throw "Syntax error, unrecognized expression: " + expr;
4227 var Expr = Sizzle.selectors = {
4228 order: [ "ID", "NAME", "TAG" ],
4230 ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
4231 CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
4232 NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
4233 ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
4234 TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
4235 CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
4236 POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
4237 PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
4241 "class": "className",
4245 href: function(elem){
4246 return elem.getAttribute("href");
4250 "+": function(checkSet, part, isXML){
4251 var isPartStr = typeof part === "string",
4252 isTag = isPartStr && !/\W/.test(part),
4253 isPartStrNotTag = isPartStr && !isTag;
4255 if ( isTag && !isXML ) {
4256 part = part.toUpperCase();
4259 for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) {
4260 if ( (elem = checkSet[i]) ) {
4261 while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
4263 checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
4269 if ( isPartStrNotTag ) {
4270 Sizzle.filter( part, checkSet, true );
4273 ">": function(checkSet, part, isXML){
4274 var isPartStr = typeof part === "string";
4276 if ( isPartStr && !/\W/.test(part) ) {
4277 part = isXML ? part : part.toUpperCase();
4279 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
4280 var elem = checkSet[i];
4282 var parent = elem.parentNode;
4283 checkSet[i] = parent.nodeName === part ? parent : false;
4287 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
4288 var elem = checkSet[i];
4290 checkSet[i] = isPartStr ?
4292 elem.parentNode === part;
4297 Sizzle.filter( part, checkSet, true );
4301 "": function(checkSet, part, isXML){
4302 var doneName = done++, checkFn = dirCheck;
4304 if ( !/\W/.test(part) ) {
4305 var nodeCheck = part = isXML ? part : part.toUpperCase();
4306 checkFn = dirNodeCheck;
4309 checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
4311 "~": function(checkSet, part, isXML){
4312 var doneName = done++, checkFn = dirCheck;
4314 if ( typeof part === "string" && !/\W/.test(part) ) {
4315 var nodeCheck = part = isXML ? part : part.toUpperCase();
4316 checkFn = dirNodeCheck;
4319 checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
4323 ID: function(match, context, isXML){
4324 if ( typeof context.getElementById !== "undefined" && !isXML ) {
4325 var m = context.getElementById(match[1]);
4326 return m ? [m] : [];
4329 NAME: function(match, context, isXML){
4330 if ( typeof context.getElementsByName !== "undefined" ) {
4331 var ret = [], results = context.getElementsByName(match[1]);
4333 for ( var i = 0, l = results.length; i < l; i++ ) {
4334 if ( results[i].getAttribute("name") === match[1] ) {
4335 ret.push( results[i] );
4339 return ret.length === 0 ? null : ret;
4342 TAG: function(match, context){
4343 return context.getElementsByTagName(match[1]);
4347 CLASS: function(match, curLoop, inplace, result, not, isXML){
4348 match = " " + match[1].replace(/\\/g, "") + " ";
4354 for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
4356 if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
4358 result.push( elem );
4359 } else if ( inplace ) {
4367 ID: function(match){
4368 return match[1].replace(/\\/g, "");
4370 TAG: function(match, curLoop){
4371 for ( var i = 0; curLoop[i] === false; i++ ){}
4372 return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
4374 CHILD: function(match){
4375 if ( match[1] == "nth" ) {
4376 var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
4377 match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
4378 !/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
4380 match[2] = (test[1] + (test[2] || 1)) - 0;
4381 match[3] = test[3] - 0;
4388 ATTR: function(match, curLoop, inplace, result, not, isXML){
4389 var name = match[1].replace(/\\/g, "");
4391 if ( !isXML && Expr.attrMap[name] ) {
4392 match[1] = Expr.attrMap[name];
4395 if ( match[2] === "~=" ) {
4396 match[4] = " " + match[4] + " ";
4401 PSEUDO: function(match, curLoop, inplace, result, not){
4402 if ( match[1] === "not" ) {
4403 if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ) {
4404 match[3] = Sizzle(match[3], null, null, curLoop);
4406 var ret = Sizzle.filter(match[3], curLoop, inplace, true ^ not);
4408 result.push.apply( result, ret );
4412 } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
4418 POS: function(match){
4419 match.unshift( true );
4424 enabled: function(elem){
4425 return elem.disabled === false && elem.type !== "hidden";
4427 disabled: function(elem){
4428 return elem.disabled === true;
4430 checked: function(elem){
4431 return elem.checked === true;
4433 selected: function(elem){
4434 elem.parentNode.selectedIndex;
4435 return elem.selected === true;
4437 parent: function(elem){
4438 return !!elem.firstChild;
4440 empty: function(elem){
4441 return !elem.firstChild;
4443 has: function(elem, i, match){
4444 return !!Sizzle( match[3], elem ).length;
4446 header: function(elem){
4447 return /h\d/i.test( elem.nodeName );
4449 text: function(elem){
4450 return "text" === elem.type;
4452 radio: function(elem){
4453 return "radio" === elem.type;
4455 checkbox: function(elem){
4456 return "checkbox" === elem.type;
4458 file: function(elem){
4459 return "file" === elem.type;
4461 password: function(elem){
4462 return "password" === elem.type;
4464 submit: function(elem){
4465 return "submit" === elem.type;
4467 image: function(elem){
4468 return "image" === elem.type;
4470 reset: function(elem){
4471 return "reset" === elem.type;
4473 button: function(elem){
4474 return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
4476 input: function(elem){
4477 return /input|select|textarea|button/i.test(elem.nodeName);
4481 first: function(elem, i){
4484 last: function(elem, i, match, array){
4485 return i === array.length - 1;
4487 even: function(elem, i){
4490 odd: function(elem, i){
4493 lt: function(elem, i, match){
4494 return i < match[3] - 0;
4496 gt: function(elem, i, match){
4497 return i > match[3] - 0;
4499 nth: function(elem, i, match){
4500 return match[3] - 0 == i;
4502 eq: function(elem, i, match){
4503 return match[3] - 0 == i;
4507 PSEUDO: function(elem, match, i, array){
4508 var name = match[1], filter = Expr.filters[ name ];
4511 return filter( elem, i, match, array );
4512 } else if ( name === "contains" ) {
4513 return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
4514 } else if ( name === "not" ) {
4517 for ( var i = 0, l = not.length; i < l; i++ ) {
4518 if ( not[i] === elem ) {
4526 CHILD: function(elem, match){
4527 var type = match[1], node = elem;
4531 while ( (node = node.previousSibling) ) {
4532 if ( node.nodeType === 1 ) return false;
4534 if ( type == 'first') return true;
4537 while ( (node = node.nextSibling) ) {
4538 if ( node.nodeType === 1 ) return false;
4542 var first = match[2], last = match[3];
4544 if ( first == 1 && last == 0 ) {
4548 var doneName = match[0],
4549 parent = elem.parentNode;
4551 if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) {
4553 for ( node = parent.firstChild; node; node = node.nextSibling ) {
4554 if ( node.nodeType === 1 ) {
4555 node.nodeIndex = ++count;
4558 parent.sizcache = doneName;
4561 var diff = elem.nodeIndex - last;
4565 return ( diff % first == 0 && diff / first >= 0 );
4569 ID: function(elem, match){
4570 return elem.nodeType === 1 && elem.getAttribute("id") === match;
4572 TAG: function(elem, match){
4573 return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
4575 CLASS: function(elem, match){
4576 return (" " + (elem.className || elem.getAttribute("class")) + " ")
4577 .indexOf( match ) > -1;
4579 ATTR: function(elem, match){
4580 var name = match[1],
4581 result = Expr.attrHandle[ name ] ?
4582 Expr.attrHandle[ name ]( elem ) :
4583 elem[ name ] != null ?
4585 elem.getAttribute( name ),
4586 value = result + "",
4590 return result == null ?
4595 value.indexOf(check) >= 0 :
4597 (" " + value + " ").indexOf(check) >= 0 :
4599 value && result !== false :
4603 value.indexOf(check) === 0 :
4605 value.substr(value.length - check.length) === check :
4607 value === check || value.substr(0, check.length + 1) === check + "-" :
4610 POS: function(elem, match, i, array){
4611 var name = match[2], filter = Expr.setFilters[ name ];
4614 return filter( elem, i, match, array );
4620 var origPOS = Expr.match.POS;
4622 for ( var type in Expr.match ) {
4623 Expr.match[ type ] = new RegExp( Expr.match[ type ].source + /(?![^\[]*\])(?![^\(]*\))/.source );
4624 Expr.leftMatch[ type ] = new RegExp( /(^(?:.|\r|\n)*?)/.source + Expr.match[ type ].source );
4627 var makeArray = function(array, results) {
4628 array = Array.prototype.slice.call( array, 0 );
4631 results.push.apply( results, array );
4639 Array.prototype.slice.call( document.documentElement.childNodes, 0 );
4642 makeArray = function(array, results) {
4643 var ret = results || [];
4645 if ( toString.call(array) === "[object Array]" ) {
4646 Array.prototype.push.apply( ret, array );
4648 if ( typeof array.length === "number" ) {
4649 for ( var i = 0, l = array.length; i < l; i++ ) {
4650 ret.push( array[i] );
4653 for ( var i = 0; array[i]; i++ ) {
4654 ret.push( array[i] );
4665 if ( document.documentElement.compareDocumentPosition ) {
4666 sortOrder = function( a, b ) {
4667 if ( !a.compareDocumentPosition || !b.compareDocumentPosition ) {
4669 hasDuplicate = true;
4674 var ret = a.compareDocumentPosition(b) & 4 ? -1 : a === b ? 0 : 1;
4676 hasDuplicate = true;
4680 } else if ( "sourceIndex" in document.documentElement ) {
4681 sortOrder = function( a, b ) {
4682 if ( !a.sourceIndex || !b.sourceIndex ) {
4684 hasDuplicate = true;
4689 var ret = a.sourceIndex - b.sourceIndex;
4691 hasDuplicate = true;
4695 } else if ( document.createRange ) {
4696 sortOrder = function( a, b ) {
4697 if ( !a.ownerDocument || !b.ownerDocument ) {
4699 hasDuplicate = true;
4704 var aRange = a.ownerDocument.createRange(), bRange = b.ownerDocument.createRange();
4705 aRange.setStart(a, 0);
4706 aRange.setEnd(a, 0);
4707 bRange.setStart(b, 0);
4708 bRange.setEnd(b, 0);
4709 var ret = aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
4711 hasDuplicate = true;
4718 var form = document.createElement("div"),
4719 id = "script" + (new Date).getTime();
4720 form.innerHTML = "<a name='" + id + "'/>";
4722 var root = document.documentElement;
4723 root.insertBefore( form, root.firstChild );
4725 if ( !!document.getElementById( id ) ) {
4726 Expr.find.ID = function(match, context, isXML){
4727 if ( typeof context.getElementById !== "undefined" && !isXML ) {
4728 var m = context.getElementById(match[1]);
4729 return m ? m.id === match[1] || typeof m.getAttributeNode !== "undefined" && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
4733 Expr.filter.ID = function(elem, match){
4734 var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
4735 return elem.nodeType === 1 && node && node.nodeValue === match;
4739 root.removeChild( form );
4740 root = form = null; // release memory in IE
4745 var div = document.createElement("div");
4746 div.appendChild( document.createComment("") );
4748 if ( div.getElementsByTagName("*").length > 0 ) {
4749 Expr.find.TAG = function(match, context){
4750 var results = context.getElementsByTagName(match[1]);
4752 if ( match[1] === "*" ) {
4755 for ( var i = 0; results[i]; i++ ) {
4756 if ( results[i].nodeType === 1 ) {
4757 tmp.push( results[i] );
4768 div.innerHTML = "<a href='#'></a>";
4769 if ( div.firstChild && typeof div.firstChild.getAttribute !== "undefined" &&
4770 div.firstChild.getAttribute("href") !== "#" ) {
4771 Expr.attrHandle.href = function(elem){
4772 return elem.getAttribute("href", 2);
4776 div = null; // release memory in IE
4779 if ( document.querySelectorAll ) (function(){
4780 var oldSizzle = Sizzle, div = document.createElement("div");
4781 div.innerHTML = "<p class='TEST'></p>";
4783 if ( div.querySelectorAll && div.querySelectorAll(".TEST").length === 0 ) {
4787 Sizzle = function(query, context, extra, seed){
4788 context = context || document;
4790 if ( !seed && context.nodeType === 9 && !isXML(context) ) {
4792 return makeArray( context.querySelectorAll(query), extra );
4796 return oldSizzle(query, context, extra, seed);
4799 for ( var prop in oldSizzle ) {
4800 Sizzle[ prop ] = oldSizzle[ prop ];
4803 div = null; // release memory in IE
4806 if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
4807 var div = document.createElement("div");
4808 div.innerHTML = "<div class='test e'></div><div class='test'></div>";
4810 if ( div.getElementsByClassName("e").length === 0 )
4813 div.lastChild.className = "e";
4815 if ( div.getElementsByClassName("e").length === 1 )
4818 Expr.order.splice(1, 0, "CLASS");
4819 Expr.find.CLASS = function(match, context, isXML) {
4820 if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
4821 return context.getElementsByClassName(match[1]);
4825 div = null; // release memory in IE
4828 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
4829 var sibDir = dir == "previousSibling" && !isXML;
4830 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
4831 var elem = checkSet[i];
4833 if ( sibDir && elem.nodeType === 1 ){
4834 elem.sizcache = doneName;
4841 if ( elem.sizcache === doneName ) {
4842 match = checkSet[elem.sizset];
4846 if ( elem.nodeType === 1 && !isXML ){
4847 elem.sizcache = doneName;
4851 if ( elem.nodeName === cur ) {
4859 checkSet[i] = match;
4864 function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
4865 var sibDir = dir == "previousSibling" && !isXML;
4866 for ( var i = 0, l = checkSet.length; i < l; i++ ) {
4867 var elem = checkSet[i];
4869 if ( sibDir && elem.nodeType === 1 ) {
4870 elem.sizcache = doneName;
4877 if ( elem.sizcache === doneName ) {
4878 match = checkSet[elem.sizset];
4882 if ( elem.nodeType === 1 ) {
4884 elem.sizcache = doneName;
4887 if ( typeof cur !== "string" ) {
4888 if ( elem === cur ) {
4893 } else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
4902 checkSet[i] = match;
4907 var contains = document.compareDocumentPosition ? function(a, b){
4908 return a.compareDocumentPosition(b) & 16;
4910 return a !== b && (a.contains ? a.contains(b) : true);
4913 var isXML = function(elem){
4914 return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
4915 !!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
4918 var posProcess = function(selector, context){
4919 var tmpSet = [], later = "", match,
4920 root = context.nodeType ? [context] : context;
4922 while ( (match = Expr.match.PSEUDO.exec( selector )) ) {
4924 selector = selector.replace( Expr.match.PSEUDO, "" );
4927 selector = Expr.relative[selector] ? selector + "*" : selector;
4929 for ( var i = 0, l = root.length; i < l; i++ ) {
4930 Sizzle( selector, root[i], tmpSet );
4933 return Sizzle.filter( later, tmpSet );
4937 window.Sizzle = Sizzle;
4941 Prototype._original_property = window.Sizzle;
4943 ;(function(engine) {
4944 var extendElements = Prototype.Selector.extendElements;
4946 function select(selector, scope) {
4947 return extendElements(engine(selector, scope || document));
4950 function match(element, selector) {
4951 return engine.matches(selector, [element]).length == 1;
4954 Prototype.Selector.engine = engine;
4955 Prototype.Selector.select = select;
4956 Prototype.Selector.match = match;
4959 window.Sizzle = Prototype._original_property;
4960 delete Prototype._original_property;
4963 reset: function(form) {
4969 serializeElements: function(elements, options) {
4970 if (typeof options != 'object') options = { hash: !!options };
4971 else if (Object.isUndefined(options.hash)) options.hash = true;
4972 var key, value, submitted = false, submit = options.submit, accumulator, initial;
4976 accumulator = function(result, key, value) {
4977 if (key in result) {
4978 if (!Object.isArray(result[key])) result[key] = [result[key]];
4979 result[key].push(value);
4980 } else result[key] = value;
4985 accumulator = function(result, key, value) {
4986 return result + (result ? '&' : '') + encodeURIComponent(key) + '=' + encodeURIComponent(value);
4990 return elements.inject(initial, function(result, element) {
4991 if (!element.disabled && element.name) {
4992 key = element.name; value = $(element).getValue();
4993 if (value != null && element.type != 'file' && (element.type != 'submit' || (!submitted &&
4994 submit !== false && (!submit || key == submit) && (submitted = true)))) {
4995 result = accumulator(result, key, value);
5004 serialize: function(form, options) {
5005 return Form.serializeElements(Form.getElements(form), options);
5008 getElements: function(form) {
5009 var elements = $(form).getElementsByTagName('*'),
5012 serializers = Form.Element.Serializers;
5013 for (var i = 0; element = elements[i]; i++) {
5016 return arr.inject([], function(elements, child) {
5017 if (serializers[child.tagName.toLowerCase()])
5018 elements.push(Element.extend(child));
5023 getInputs: function(form, typeName, name) {
5025 var inputs = form.getElementsByTagName('input');
5027 if (!typeName && !name) return $A(inputs).map(Element.extend);
5029 for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
5030 var input = inputs[i];
5031 if ((typeName && input.type != typeName) || (name && input.name != name))
5033 matchingInputs.push(Element.extend(input));
5036 return matchingInputs;
5039 disable: function(form) {
5041 Form.getElements(form).invoke('disable');
5045 enable: function(form) {
5047 Form.getElements(form).invoke('enable');
5051 findFirstElement: function(form) {
5052 var elements = $(form).getElements().findAll(function(element) {
5053 return 'hidden' != element.type && !element.disabled;
5055 var firstByIndex = elements.findAll(function(element) {
5056 return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
5057 }).sortBy(function(element) { return element.tabIndex }).first();
5059 return firstByIndex ? firstByIndex : elements.find(function(element) {
5060 return /^(?:input|select|textarea)$/i.test(element.tagName);
5064 focusFirstElement: function(form) {
5066 var element = form.findFirstElement();
5067 if (element) element.activate();
5071 request: function(form, options) {
5072 form = $(form), options = Object.clone(options || { });
5074 var params = options.parameters, action = form.readAttribute('action') || '';
5075 if (action.blank()) action = window.location.href;
5076 options.parameters = form.serialize(true);
5079 if (Object.isString(params)) params = params.toQueryParams();
5080 Object.extend(options.parameters, params);
5083 if (form.hasAttribute('method') && !options.method)
5084 options.method = form.method;
5086 return new Ajax.Request(action, options);
5090 /*--------------------------------------------------------------------------*/
5094 focus: function(element) {
5099 select: function(element) {
5100 $(element).select();
5105 Form.Element.Methods = {
5107 serialize: function(element) {
5108 element = $(element);
5109 if (!element.disabled && element.name) {
5110 var value = element.getValue();
5111 if (value != undefined) {
5113 pair[element.name] = value;
5114 return Object.toQueryString(pair);
5120 getValue: function(element) {
5121 element = $(element);
5122 var method = element.tagName.toLowerCase();
5123 return Form.Element.Serializers[method](element);
5126 setValue: function(element, value) {
5127 element = $(element);
5128 var method = element.tagName.toLowerCase();
5129 Form.Element.Serializers[method](element, value);
5133 clear: function(element) {
5134 $(element).value = '';
5138 present: function(element) {
5139 return $(element).value != '';
5142 activate: function(element) {
5143 element = $(element);
5146 if (element.select && (element.tagName.toLowerCase() != 'input' ||
5147 !(/^(?:button|reset|submit)$/i.test(element.type))))
5153 disable: function(element) {
5154 element = $(element);
5155 element.disabled = true;
5159 enable: function(element) {
5160 element = $(element);
5161 element.disabled = false;
5166 /*--------------------------------------------------------------------------*/
5168 var Field = Form.Element;
5170 var $F = Form.Element.Methods.getValue;
5172 /*--------------------------------------------------------------------------*/
5174 Form.Element.Serializers = (function() {
5175 function input(element, value) {
5176 switch (element.type.toLowerCase()) {
5179 return inputSelector(element, value);
5181 return valueSelector(element, value);
5185 function inputSelector(element, value) {
5186 if (Object.isUndefined(value))
5187 return element.checked ? element.value : null;
5188 else element.checked = !!value;
5191 function valueSelector(element, value) {
5192 if (Object.isUndefined(value)) return element.value;
5193 else element.value = value;
5196 function select(element, value) {
5197 if (Object.isUndefined(value))
5198 return (element.type === 'select-one' ? selectOne : selectMany)(element);
5200 var opt, currentValue, single = !Object.isArray(value);
5201 for (var i = 0, length = element.length; i < length; i++) {
5202 opt = element.options[i];
5203 currentValue = this.optionValue(opt);
5205 if (currentValue == value) {
5206 opt.selected = true;
5210 else opt.selected = value.include(currentValue);
5214 function selectOne(element) {
5215 var index = element.selectedIndex;
5216 return index >= 0 ? optionValue(element.options[index]) : null;
5219 function selectMany(element) {
5220 var values, length = element.length;
5221 if (!length) return null;
5223 for (var i = 0, values = []; i < length; i++) {
5224 var opt = element.options[i];
5225 if (opt.selected) values.push(optionValue(opt));
5230 function optionValue(opt) {
5231 return Element.hasAttribute(opt, 'value') ? opt.value : opt.text;
5236 inputSelector: inputSelector,
5237 textarea: valueSelector,
5239 selectOne: selectOne,
5240 selectMany: selectMany,
5241 optionValue: optionValue,
5242 button: valueSelector
5246 /*--------------------------------------------------------------------------*/
5249 Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
5250 initialize: function($super, element, frequency, callback) {
5251 $super(callback, frequency);
5252 this.element = $(element);
5253 this.lastValue = this.getValue();
5256 execute: function() {
5257 var value = this.getValue();
5258 if (Object.isString(this.lastValue) && Object.isString(value) ?
5259 this.lastValue != value : String(this.lastValue) != String(value)) {
5260 this.callback(this.element, value);
5261 this.lastValue = value;
5266 Form.Element.Observer = Class.create(Abstract.TimedObserver, {
5267 getValue: function() {
5268 return Form.Element.getValue(this.element);
5272 Form.Observer = Class.create(Abstract.TimedObserver, {
5273 getValue: function() {
5274 return Form.serialize(this.element);
5278 /*--------------------------------------------------------------------------*/
5280 Abstract.EventObserver = Class.create({
5281 initialize: function(element, callback) {
5282 this.element = $(element);
5283 this.callback = callback;
5285 this.lastValue = this.getValue();
5286 if (this.element.tagName.toLowerCase() == 'form')
5287 this.registerFormCallbacks();
5289 this.registerCallback(this.element);
5292 onElementEvent: function() {
5293 var value = this.getValue();
5294 if (this.lastValue != value) {
5295 this.callback(this.element, value);
5296 this.lastValue = value;
5300 registerFormCallbacks: function() {
5301 Form.getElements(this.element).each(this.registerCallback, this);
5304 registerCallback: function(element) {
5306 switch (element.type.toLowerCase()) {
5309 Event.observe(element, 'click', this.onElementEvent.bind(this));
5312 Event.observe(element, 'change', this.onElementEvent.bind(this));
5319 Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
5320 getValue: function() {
5321 return Form.Element.getValue(this.element);
5325 Form.EventObserver = Class.create(Abstract.EventObserver, {
5326 getValue: function() {
5327 return Form.serialize(this.element);
5351 var docEl = document.documentElement;
5352 var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED = 'onmouseenter' in docEl
5353 && 'onmouseleave' in docEl;
5357 var isIELegacyEvent = function(event) { return false; };
5359 if (window.attachEvent) {
5360 if (window.addEventListener) {
5361 isIELegacyEvent = function(event) {
5362 return !(event instanceof window.Event);
5365 isIELegacyEvent = function(event) { return true; };
5371 function _isButtonForDOMEvents(event, code) {
5372 return event.which ? (event.which === code + 1) : (event.button === code);
5375 var legacyButtonMap = { 0: 1, 1: 4, 2: 2 };
5376 function _isButtonForLegacyEvents(event, code) {
5377 return event.button === legacyButtonMap[code];
5380 function _isButtonForWebKit(event, code) {
5382 case 0: return event.which == 1 && !event.metaKey;
5383 case 1: return event.which == 2 || (event.which == 1 && event.metaKey);
5384 case 2: return event.which == 3;
5385 default: return false;
5389 if (window.attachEvent) {
5390 if (!window.addEventListener) {
5391 _isButton = _isButtonForLegacyEvents;
5393 _isButton = function(event, code) {
5394 return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
5395 _isButtonForDOMEvents(event, code);
5398 } else if (Prototype.Browser.WebKit) {
5399 _isButton = _isButtonForWebKit;
5401 _isButton = _isButtonForDOMEvents;
5404 function isLeftClick(event) { return _isButton(event, 0) }
5406 function isMiddleClick(event) { return _isButton(event, 1) }
5408 function isRightClick(event) { return _isButton(event, 2) }
5410 function element(event) {
5411 event = Event.extend(event);
5413 var node = event.target, type = event.type,
5414 currentTarget = event.currentTarget;
5416 if (currentTarget && currentTarget.tagName) {
5417 if (type === 'load' || type === 'error' ||
5418 (type === 'click' && currentTarget.tagName.toLowerCase() === 'input'
5419 && currentTarget.type === 'radio'))
5420 node = currentTarget;
5423 if (node.nodeType == Node.TEXT_NODE)
5424 node = node.parentNode;
5426 return Element.extend(node);
5429 function findElement(event, expression) {
5430 var element = Event.element(event);
5432 if (!expression) return element;
5434 if (Object.isElement(element) && Prototype.Selector.match(element, expression)) {
5435 return Element.extend(element);
5437 element = element.parentNode;
5441 function pointer(event) {
5442 return { x: pointerX(event), y: pointerY(event) };
5445 function pointerX(event) {
5446 var docElement = document.documentElement,
5447 body = document.body || { scrollLeft: 0 };
5449 return event.pageX || (event.clientX +
5450 (docElement.scrollLeft || body.scrollLeft) -
5451 (docElement.clientLeft || 0));
5454 function pointerY(event) {
5455 var docElement = document.documentElement,
5456 body = document.body || { scrollTop: 0 };
5458 return event.pageY || (event.clientY +
5459 (docElement.scrollTop || body.scrollTop) -
5460 (docElement.clientTop || 0));
5464 function stop(event) {
5465 Event.extend(event);
5466 event.preventDefault();
5467 event.stopPropagation();
5469 event.stopped = true;
5474 isLeftClick: isLeftClick,
5475 isMiddleClick: isMiddleClick,
5476 isRightClick: isRightClick,
5479 findElement: findElement,
5488 var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
5489 m[name] = Event.Methods[name].methodize();
5493 if (window.attachEvent) {
5494 function _relatedTarget(event) {
5496 switch (event.type) {
5499 element = event.fromElement;
5503 element = event.toElement;
5508 return Element.extend(element);
5511 var additionalMethods = {
5512 stopPropagation: function() { this.cancelBubble = true },
5513 preventDefault: function() { this.returnValue = false },
5514 inspect: function() { return '[object Event]' }
5517 Event.extend = function(event, element) {
5518 if (!event) return false;
5520 if (!isIELegacyEvent(event)) return event;
5522 if (event._extendedByPrototype) return event;
5523 event._extendedByPrototype = Prototype.emptyFunction;
5525 var pointer = Event.pointer(event);
5527 Object.extend(event, {
5528 target: event.srcElement || element,
5529 relatedTarget: _relatedTarget(event),
5534 Object.extend(event, methods);
5535 Object.extend(event, additionalMethods);
5540 Event.extend = Prototype.K;
5543 if (window.addEventListener) {
5544 Event.prototype = window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
5545 Object.extend(Event.prototype, methods);
5548 function _createResponder(element, eventName, handler) {
5549 var registry = Element.retrieve(element, 'prototype_event_registry');
5551 if (Object.isUndefined(registry)) {
5552 CACHE.push(element);
5553 registry = Element.retrieve(element, 'prototype_event_registry', $H());
5556 var respondersForEvent = registry.get(eventName);
5557 if (Object.isUndefined(respondersForEvent)) {
5558 respondersForEvent = [];
5559 registry.set(eventName, respondersForEvent);
5562 if (respondersForEvent.pluck('handler').include(handler)) return false;
5565 if (eventName.include(":")) {
5566 responder = function(event) {
5567 if (Object.isUndefined(event.eventName))
5570 if (event.eventName !== eventName)
5573 Event.extend(event, element);
5574 handler.call(element, event);
5577 if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
5578 (eventName === "mouseenter" || eventName === "mouseleave")) {
5579 if (eventName === "mouseenter" || eventName === "mouseleave") {
5580 responder = function(event) {
5581 Event.extend(event, element);
5583 var parent = event.relatedTarget;
5584 while (parent && parent !== element) {
5585 try { parent = parent.parentNode; }
5586 catch(e) { parent = element; }
5589 if (parent === element) return;
5591 handler.call(element, event);
5595 responder = function(event) {
5596 Event.extend(event, element);
5597 handler.call(element, event);
5602 responder.handler = handler;
5603 respondersForEvent.push(responder);
5607 function _destroyCache() {
5608 for (var i = 0, length = CACHE.length; i < length; i++) {
5609 Event.stopObserving(CACHE[i]);
5616 if (Prototype.Browser.IE)
5617 window.attachEvent('onunload', _destroyCache);
5619 if (Prototype.Browser.WebKit)
5620 window.addEventListener('unload', Prototype.emptyFunction, false);
5623 var _getDOMEventName = Prototype.K,
5624 translations = { mouseenter: "mouseover", mouseleave: "mouseout" };
5626 if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED) {
5627 _getDOMEventName = function(eventName) {
5628 return (translations[eventName] || eventName);
5632 function observe(element, eventName, handler) {
5633 element = $(element);
5635 var responder = _createResponder(element, eventName, handler);
5637 if (!responder) return element;
5639 if (eventName.include(':')) {
5640 if (element.addEventListener)
5641 element.addEventListener("dataavailable", responder, false);
5643 element.attachEvent("ondataavailable", responder);
5644 element.attachEvent("onlosecapture", responder);
5647 var actualEventName = _getDOMEventName(eventName);
5649 if (element.addEventListener)
5650 element.addEventListener(actualEventName, responder, false);
5652 element.attachEvent("on" + actualEventName, responder);
5658 function stopObserving(element, eventName, handler) {
5659 element = $(element);
5661 var registry = Element.retrieve(element, 'prototype_event_registry');
5662 if (!registry) return element;
5665 registry.each( function(pair) {
5666 var eventName = pair.key;
5667 stopObserving(element, eventName);
5672 var responders = registry.get(eventName);
5673 if (!responders) return element;
5676 responders.each(function(r) {
5677 stopObserving(element, eventName, r.handler);
5682 var i = responders.length, responder;
5684 if (responders[i].handler === handler) {
5685 responder = responders[i];
5689 if (!responder) return element;
5691 if (eventName.include(':')) {
5692 if (element.removeEventListener)
5693 element.removeEventListener("dataavailable", responder, false);
5695 element.detachEvent("ondataavailable", responder);
5696 element.detachEvent("onlosecapture", responder);
5699 var actualEventName = _getDOMEventName(eventName);
5700 if (element.removeEventListener)
5701 element.removeEventListener(actualEventName, responder, false);
5703 element.detachEvent('on' + actualEventName, responder);
5706 registry.set(eventName, responders.without(responder));
5711 function fire(element, eventName, memo, bubble) {
5712 element = $(element);
5714 if (Object.isUndefined(bubble))
5717 if (element == document && document.createEvent && !element.dispatchEvent)
5718 element = document.documentElement;
5721 if (document.createEvent) {
5722 event = document.createEvent('HTMLEvents');
5723 event.initEvent('dataavailable', bubble, true);
5725 event = document.createEventObject();
5726 event.eventType = bubble ? 'ondataavailable' : 'onlosecapture';
5729 event.eventName = eventName;
5730 event.memo = memo || { };
5732 if (document.createEvent)
5733 element.dispatchEvent(event);
5735 element.fireEvent(event.eventType, event);
5737 return Event.extend(event);
5740 Event.Handler = Class.create({
5741 initialize: function(element, eventName, selector, callback) {
5742 this.element = $(element);
5743 this.eventName = eventName;
5744 this.selector = selector;
5745 this.callback = callback;
5746 this.handler = this.handleEvent.bind(this);
5750 Event.observe(this.element, this.eventName, this.handler);
5755 Event.stopObserving(this.element, this.eventName, this.handler);
5759 handleEvent: function(event) {
5760 var element = Event.findElement(event, this.selector);
5761 if (element) this.callback.call(this.element, event, element);
5765 function on(element, eventName, selector, callback) {
5766 element = $(element);
5767 if (Object.isFunction(selector) && Object.isUndefined(callback)) {
5768 callback = selector, selector = null;
5771 return new Event.Handler(element, eventName, selector, callback).start();
5774 Object.extend(Event, Event.Methods);
5776 Object.extend(Event, {
5779 stopObserving: stopObserving,
5783 Element.addMethods({
5788 stopObserving: stopObserving,
5793 Object.extend(document, {
5794 fire: fire.methodize(),
5796 observe: observe.methodize(),
5798 stopObserving: stopObserving.methodize(),
5805 if (window.Event) Object.extend(window.Event, Event);
5806 else window.Event = Event;
5810 /* Support for the DOMContentLoaded event is based on work by Dan Webb,
5811 Matthias Miller, Dean Edwards, John Resig, and Diego Perini. */
5815 function fireContentLoadedEvent() {
5816 if (document.loaded) return;
5817 if (timer) window.clearTimeout(timer);
5818 document.loaded = true;
5819 document.fire('dom:loaded');
5822 function checkReadyState() {
5823 if (document.readyState === 'complete') {
5824 document.stopObserving('readystatechange', checkReadyState);
5825 fireContentLoadedEvent();
5829 function pollDoScroll() {
5830 try { document.documentElement.doScroll('left'); }
5832 timer = pollDoScroll.defer();
5835 fireContentLoadedEvent();
5838 if (document.addEventListener) {
5839 document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
5841 document.observe('readystatechange', checkReadyState);
5843 timer = pollDoScroll.defer();
5846 Event.observe(window, 'load', fireContentLoadedEvent);
5850 Element.addMethods();
5851 /*------------------------------- DEPRECATED -------------------------------*/
5853 Hash.toQueryString = Object.toQueryString;
5855 var Toggle = { display: Element.toggle };
5857 Element.Methods.childOf = Element.Methods.descendantOf;
5860 Before: function(element, content) {
5861 return Element.insert(element, {before:content});
5864 Top: function(element, content) {
5865 return Element.insert(element, {top:content});
5868 Bottom: function(element, content) {
5869 return Element.insert(element, {bottom:content});
5872 After: function(element, content) {
5873 return Element.insert(element, {after:content});
5877 var $continue = new Error('"throw $continue" is deprecated, use "return" instead');
5880 includeScrollOffsets: false,
5882 prepare: function() {
5883 this.deltaX = window.pageXOffset
5884 || document.documentElement.scrollLeft
5885 || document.body.scrollLeft
5887 this.deltaY = window.pageYOffset
5888 || document.documentElement.scrollTop
5889 || document.body.scrollTop
5893 within: function(element, x, y) {
5894 if (this.includeScrollOffsets)
5895 return this.withinIncludingScrolloffsets(element, x, y);
5898 this.offset = Element.cumulativeOffset(element);
5900 return (y >= this.offset[1] &&
5901 y < this.offset[1] + element.offsetHeight &&
5902 x >= this.offset[0] &&
5903 x < this.offset[0] + element.offsetWidth);
5906 withinIncludingScrolloffsets: function(element, x, y) {
5907 var offsetcache = Element.cumulativeScrollOffset(element);
5909 this.xcomp = x + offsetcache[0] - this.deltaX;
5910 this.ycomp = y + offsetcache[1] - this.deltaY;
5911 this.offset = Element.cumulativeOffset(element);
5913 return (this.ycomp >= this.offset[1] &&
5914 this.ycomp < this.offset[1] + element.offsetHeight &&
5915 this.xcomp >= this.offset[0] &&
5916 this.xcomp < this.offset[0] + element.offsetWidth);
5919 overlap: function(mode, element) {
5920 if (!mode) return 0;
5921 if (mode == 'vertical')
5922 return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
5923 element.offsetHeight;
5924 if (mode == 'horizontal')
5925 return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
5926 element.offsetWidth;
5930 cumulativeOffset: Element.Methods.cumulativeOffset,
5932 positionedOffset: Element.Methods.positionedOffset,
5934 absolutize: function(element) {
5936 return Element.absolutize(element);
5939 relativize: function(element) {
5941 return Element.relativize(element);
5944 realOffset: Element.Methods.cumulativeScrollOffset,
5946 offsetParent: Element.Methods.getOffsetParent,
5948 page: Element.Methods.viewportOffset,
5950 clone: function(source, target, options) {
5951 options = options || { };
5952 return Element.clonePosition(target, source, options);
5956 /*--------------------------------------------------------------------------*/
5958 if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
5959 function iter(name) {
5960 return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
5963 instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
5964 function(element, className) {
5965 className = className.toString().strip();
5966 var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
5967 return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
5968 } : function(element, className) {
5969 className = className.toString().strip();
5970 var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
5971 if (!classNames && !className) return elements;
5973 var nodes = $(element).getElementsByTagName('*');
5974 className = ' ' + className + ' ';
5976 for (var i = 0, child, cn; child = nodes[i]; i++) {
5977 if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
5978 (classNames && classNames.all(function(name) {
5979 return !name.toString().blank() && cn.include(' ' + name + ' ');
5981 elements.push(Element.extend(child));
5986 return function(className, parentElement) {
5987 return $(parentElement || document.body).getElementsByClassName(className);
5991 /*--------------------------------------------------------------------------*/
5993 Element.ClassNames = Class.create();
5994 Element.ClassNames.prototype = {
5995 initialize: function(element) {
5996 this.element = $(element);
5999 _each: function(iterator) {
6000 this.element.className.split(/\s+/).select(function(name) {
6001 return name.length > 0;
6005 set: function(className) {
6006 this.element.className = className;
6009 add: function(classNameToAdd) {
6010 if (this.include(classNameToAdd)) return;
6011 this.set($A(this).concat(classNameToAdd).join(' '));
6014 remove: function(classNameToRemove) {
6015 if (!this.include(classNameToRemove)) return;
6016 this.set($A(this).without(classNameToRemove).join(' '));
6019 toString: function() {
6020 return $A(this).join(' ');
6024 Object.extend(Element.ClassNames.prototype, Enumerable);
6026 /*--------------------------------------------------------------------------*/
6029 window.Selector = Class.create({
6030 initialize: function(expression) {
6031 this.expression = expression.strip();
6034 findElements: function(rootElement) {
6035 return Prototype.Selector.select(this.expression, rootElement);
6038 match: function(element) {
6039 return Prototype.Selector.match(element, this.expression);
6042 toString: function() {
6043 return this.expression;
6046 inspect: function() {
6047 return "#<Selector: " + this.expression + ">";
6051 Object.extend(Selector, {
6052 matchElements: function(elements, expression) {
6053 var match = Prototype.Selector.match,
6056 for (var i = 0, length = elements.length; i < length; i++) {
6057 var element = elements[i];
6058 if (match(element, expression)) {
6059 results.push(Element.extend(element));
6065 findElement: function(elements, expression, index) {
6067 var matchIndex = 0, element;
6068 for (var i = 0, length = elements.length; i < length; i++) {
6069 element = elements[i];
6070 if (Prototype.Selector.match(element, expression) && index === matchIndex++) {
6071 return Element.extend(element);
6076 findChildElements: function(element, expressions) {
6077 var selector = expressions.toArray().join(', ');
6078 return Prototype.Selector.select(selector, element || document);