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/* Prototype JavaScript framework, version 1.4.0
* (c) 2005 Sam Stephenson <sam@conio.net>
*
* Prototype is freely distributable under the terms of an MIT-style license.
* For details, see the Prototype web site: http://prototype.conio.net/
*
/*--------------------------------------------------------------------------*/
var Prototype = {
Version: '1.4.0',
ScriptFragment: '(?:<script.*?>)((\n|\r|.)*?)(?:<\/script>)',
emptyFunction: function() {},
K: function(x) {return x}
}
var Class = {
create: function() {
return function() {
this.initialize.apply(this, arguments);
}
}
}
var Abstract = new Object();
Object.extend = function(destination, source) {
for (property in source) {
destination[property] = source[property];
}
return destination;
}
Object.inspect = function(object) {
try {
if (object == undefined) return 'undefined';
if (object == null) return 'null';
return object.inspect ? object.inspect() : object.toString();
} catch (e) {
if (e instanceof RangeError) return '...';
throw e;
}
}
Function.prototype.bind = function() {
var __method = this, args = $A(arguments), object = args.shift();
return function() {
return __method.apply(object, args.concat($A(arguments)));
}
}
Function.prototype.bindAsEventListener = function(object) {
var __method = this;
return function(event) {
return __method.call(object, event || window.event);
}
}
Object.extend(Number.prototype, {
toColorPart: function() {
var digits = this.toString(16);
if (this < 16) return '0' + digits;
return digits;
},
succ: function() {
return this + 1;
},
times: function(iterator) {
$R(0, this, true).each(iterator);
return this;
}
});
var Try = {
these: function() {
var returnValue;
for (var i = 0; i < arguments.length; i++) {
var lambda = arguments[i];
try {
returnValue = lambda();
break;
} catch (e) {}
}
return returnValue;
}
}
/*--------------------------------------------------------------------------*/
var PeriodicalExecuter = Class.create();
PeriodicalExecuter.prototype = {
initialize: function(callback, frequency) {
this.callback = callback;
this.frequency = frequency;
this.currentlyExecuting = false;
this.registerCallback();
},
registerCallback: function() {
setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
},
onTimerEvent: function() {
if (!this.currentlyExecuting) {
try {
this.currentlyExecuting = true;
this.callback();
} finally {
this.currentlyExecuting = false;
}
}
}
}
/*--------------------------------------------------------------------------*/
function $() {
var elements = new Array();
for (var i = 0; i < arguments.length; i++) {
var element = arguments[i];
if (typeof element == 'string')
element = document.getElementById(element);
if (arguments.length == 1)
return element;
elements.push(element);
}
return elements;
}
Object.extend(String.prototype, {
stripTags: function() {
return this.replace(/<\/?[^>]+>/gi, '');
},
stripScripts: function() {
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
},
extractScripts: function() {
var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
return (this.match(matchAll) || []).map(function(scriptTag) {
return (scriptTag.match(matchOne) || ['', ''])[1];
});
},
evalScripts: function() {
return this.extractScripts().map(eval);
},
escapeHTML: function() {
var div = document.createElement('div');
var text = document.createTextNode(this);
div.appendChild(text);
return div.innerHTML;
},
unescapeHTML: function() {
var div = document.createElement('div');
div.innerHTML = this.stripTags();
return div.childNodes[0] ? div.childNodes[0].nodeValue : '';
},
toQueryParams: function() {
var pairs = this.match(/^\??(.*)$/)[1].split('&');
return pairs.inject({}, function(params, pairString) {
var pair = pairString.split('=');
params[pair[0]] = pair[1];
return params;
});
},
toArray: function() {
return this.split('');
},
camelize: function() {
var oStringList = this.split('-');
if (oStringList.length == 1) return oStringList[0];
var camelizedString = this.indexOf('-') == 0
? oStringList[0].charAt(0).toUpperCase() + oStringList[0].substring(1)
: oStringList[0];
for (var i = 1, len = oStringList.length; i < len; i++) {
var s = oStringList[i];
camelizedString += s.charAt(0).toUpperCase() + s.substring(1);
}
return camelizedString;
},
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