/*  Prototype JavaScript framework, version 1.6.0.2
 *  (c) 2005-2008 Sam Stephenson
 *
 *  Prototype is freely distributable under the terms of an MIT-style license.
 *  For details, see the Prototype web site:http://www.prototypejs.org/
 *
 *--------------------------------------------------------------------------*/
var Prototype={
Version:'1.6.0.2',
Browser:{
IE:!!(window.attachEvent && !window.opera),
Opera:!!window.opera,
WebKit:navigator.userAgent.indexOf('AppleWebKit/')>-1,
Gecko:navigator.userAgent.indexOf('Gecko')>-1 && navigator.userAgent.indexOf('KHTML')==-1,
MobileSafari:!!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
},
BrowserFeatures:{
XPath:!!document.evaluate,
ElementExtensions:!!window.HTMLElement,
SpecificElementExtensions:
document.createElement('div').__proto__ &&
document.createElement('div').__proto__ !==
document.createElement('form').__proto__
},
ScriptFragment:'<script[^>]*>([\\S\\s]*?)<\/script>',
JSONFilter:/^\/\*-secure-([\s\S]*)\*\/\s*$/,
emptyFunction:function(){ },
K:function(x){ return x }
};
if(Prototype.Browser.MobileSafari)
Prototype.BrowserFeatures.SpecificElementExtensions=false;

/* Based on Alex Arnell's inheritance implementation. */
var Class={
create:function(){
var parent=null, properties=$A(arguments);
if(Object.isFunction(properties[0]))
parent=properties.shift();
function klass(){
this.initialize.apply(this, arguments);
}
Object.extend(klass, Class.Methods);
klass.superclass=parent;
klass.subclasses=[];
if(parent){
var subclass=function(){ };
subclass.prototype=parent.prototype;
klass.prototype=new subclass;
parent.subclasses.push(klass);
}
for (var i=0;i < properties.length;i++)
klass.addMethods(properties[i]);
if(!klass.prototype.initialize)
klass.prototype.initialize=Prototype.emptyFunction;
klass.prototype.constructor=klass;
return klass;
}
};
Class.Methods={
addMethods:function(source){
var ancestor  =this.superclass && this.superclass.prototype;
var properties=Object.keys(source);
if(!Object.keys({ toString:true }).length)
properties.push("toString", "valueOf");
for (var i=0, length=properties.length;i < length;i++){
var property=properties[i], value=source[property];
if(ancestor && Object.isFunction(value) &&
value.argumentNames().first()=="$super"){
var method=value, value=Object.extend((function(m){
return function(){ return ancestor[m].apply(this, arguments) };
})(property).wrap(method), {
valueOf:function(){ return method },
toString:function(){ return method.toString() }
});
}
this.prototype[property]=value;
}
return this;
}
};
var Abstract={ };
Object.extend=function(destination, source){
for (var property in source)
destination[property]=source[property];
return destination;
};
Object.extend(Object, {
inspect:function(object){
try {
if(Object.isUndefined(object)) return 'undefined';
if(object === null) return 'null';
return object.inspect ? object.inspect() :String(object);
} catch (e){
if(e instanceof RangeError) return '...';
throw e;
}
},
toJSON:function(object){
var type=typeof object;
switch (type){
case 'undefined':
case 'function':
case 'unknown':return;
case 'boolean':return object.toString();
}
if(object === null) return 'null';
if(object.toJSON) return object.toJSON();
if(Object.isElement(object)) return;
var results=[];
for (var property in object){
var value=Object.toJSON(object[property]);
if(!Object.isUndefined(value))
results.push(property.toJSON()+':'+value);
}
return '{'+results.join(', ')+'}';
},
toQueryString:function(object){
return $H(object).toQueryString();
},
toHTML:function(object){
return object && object.toHTML ? object.toHTML() :String.interpret(object);
},
keys:function(object){
var keys=[];
for (var property in object)
keys.push(property);
return keys;
},
values:function(object){
var values=[];
for (var property in object)
values.push(object[property]);
return values;
},
clone:function(object){
return Object.extend({ }, object);
},
isElement:function(object){
return object && object.nodeType==1;
},
isArray:function(object){
return object != null && typeof object=="object" &&
'splice' in object && 'join' in object;
},
isHash:function(object){
return object instanceof Hash;
},
isFunction:function(object){
return typeof object=="function";
},
isString:function(object){
return typeof object=="string";
},
isNumber:function(object){
return typeof object=="number";
},
isUndefined:function(object){
return typeof object=="undefined";
}
});
Object.extend(Function.prototype, {
argumentNames:function(){
var names=this.toString().match(/^[\s\(]*function[^(]*\((.*?)\)/)[1].split(",").invoke("strip");
return names.length==1 && !names[0] ? [] :names;
},
bind:function(){
if(arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
var __method=this, args=$A(arguments), object=args.shift();
return function(){
return __method.apply(object, args.concat($A(arguments)));
}
},
bindAsEventListener:function(){
var __method=this, args=$A(arguments), object=args.shift();
return function(event){
return __method.apply(object, [event || window.event].concat(args));
}
},
curry:function(){
if(!arguments.length) return this;
var __method=this, args=$A(arguments);
return function(){
return __method.apply(this, args.concat($A(arguments)));
}
},
delay:function(){
var __method=this, args=$A(arguments), timeout=args.shift() * 1000;
return window.setTimeout(function(){
return __method.apply(__method, args);
}, timeout);
},
wrap:function(wrapper){
var __method=this;
return function(){
return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
}
},
methodize:function(){
if(this._methodized) return this._methodized;
var __method=this;
return this._methodized=function(){
return __method.apply(null, [this].concat($A(arguments)));
};
}
});
Function.prototype.defer=Function.prototype.delay.curry(0.01);
Date.prototype.toJSON=function(){
return '"'+this.getUTCFullYear()+'-' +
(this.getUTCMonth()+1).toPaddedString(2)+'-' +
this.getUTCDate().toPaddedString(2)+'T' +
this.getUTCHours().toPaddedString(2)+':' +
this.getUTCMinutes().toPaddedString(2)+':' +
this.getUTCSeconds().toPaddedString(2)+'Z"';
};
var Try={
these:function(){
var returnValue;
for (var i=0, length=arguments.length;i < length;i++){
var lambda=arguments[i];
try {
returnValue=lambda();
break;
} catch (e){ }
}
return returnValue;
}
};
RegExp.prototype.match=RegExp.prototype.test;
RegExp.escape=function(str){
return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};
/*--------------------------------------------------------------------------*/
var PeriodicalExecuter=Class.create({
initialize:function(callback, frequency){
this.callback=callback;
this.frequency=frequency;
this.currentlyExecuting=false;
this.registerCallback();
},
registerCallback:function(){
this.timer=setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
},
execute:function(){
this.callback(this);
},
stop:function(){
if(!this.timer) return;
clearInterval(this.timer);
this.timer=null;
},
onTimerEvent:function(){
if(!this.currentlyExecuting){
try {
this.currentlyExecuting=true;
this.execute();
} finally {
this.currentlyExecuting=false;
}
}
}
});
Object.extend(String, {
interpret:function(value){
return value==null ? '' :String(value);
},
specialChar:{
'\b':'\\b',
'\t':'\\t',
'\n':'\\n',
'\f':'\\f',
'\r':'\\r',
'\\':'\\\\'
}
});
Object.extend(String.prototype, {
gsub:function(pattern, replacement){
var result='', source=this, match;
replacement=arguments.callee.prepareReplacement(replacement);
while (source.length>0){
if(match=source.match(pattern)){
result += source.slice(0, match.index);
result += String.interpret(replacement(match));
source =source.slice(match.index+match[0].length);
} else {
result += source, source='';
}
}
return result;
},
sub:function(pattern, replacement, count){
replacement=this.gsub.prepareReplacement(replacement);
count=Object.isUndefined(count) ? 1 :count;
return this.gsub(pattern, function(match){
if(--count < 0) return match[0];
return replacement(match);
});
},
scan:function(pattern, iterator){
this.gsub(pattern, iterator);
return String(this);
},
truncate:function(length, truncation){
length=length || 30;
truncation=Object.isUndefined(truncation) ? '...' :truncation;
return this.length>length ?
this.slice(0, length-truncation.length)+truncation :String(this);
},
strip:function(){
return this.replace(/^\s+/, '').replace(/\s+$/, '');
},
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(function(script){ return eval(script) });
},
escapeHTML:function(){
var self=arguments.callee;
self.text.data=this;
return self.div.innerHTML;
},
unescapeHTML:function(){
var div=new Element('div');
div.innerHTML=this.stripTags();
return div.childNodes[0] ? (div.childNodes.length>1 ?
$A(div.childNodes).inject('', function(memo, node){ return memo+node.nodeValue }) :
div.childNodes[0].nodeValue) :'';
},
toQueryParams:function(separator){
var match=this.strip().match(/([^?#]*)(#.*)?$/);
if(!match) return { };
return match[1].split(separator || '&').inject({ }, function(hash, pair){
if((pair=pair.split('='))[0]){
var key=decodeURIComponent(pair.shift());
var value=pair.length>1 ? pair.join('=') :pair[0];
if(value != undefined) value=decodeURIComponent(value);
if(key in hash){
if(!Object.isArray(hash[key])) hash[key]=[hash[key]];
hash[key].push(value);
}
else hash[key]=value;
}
return hash;
});
},
toArray:function(){
return this.split('');
},
succ:function(){
return this.slice(0, this.length-1) +
String.fromCharCode(this.charCodeAt(this.length-1)+1);
},
times:function(count){
return count < 1 ? '' :new Array(count+1).join(this);
},
camelize:function(){
var parts=this.split('-'), len=parts.length;
if(len==1) return parts[0];
var camelized=this.charAt(0)=='-'
? parts[0].charAt(0).toUpperCase()+parts[0].substring(1)
:parts[0];
for (var i=1;i < len;i++)
camelized += parts[i].charAt(0).toUpperCase()+parts[i].substring(1);
return camelized;
},
capitalize:function(){
return this.charAt(0).toUpperCase()+this.substring(1).toLowerCase();
},
underscore:function(){
return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
},
dasherize:function(){
return this.gsub(/_/,'-');
},
inspect:function(useDoubleQuotes){
var escapedString=this.gsub(/[\x00-\x1f\\]/, function(match){
var character=String.specialChar[match[0]];
return character ? character :'\\u00'+match[0].charCodeAt().toPaddedString(2, 16);
});
if(useDoubleQuotes) return '"'+escapedString.replace(/"/g, '\\"')+'"';
return "'"+escapedString.replace(/'/g, '\\\'')+"'";
},
toJSON:function(){
return this.inspect(true);
},
unfilterJSON:function(filter){
return this.sub(filter || Prototype.JSONFilter, '#{1}');
},
isJSON:function(){
var str=this;
if(str.blank()) return false;
str=this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
},
evalJSON:function(sanitize){
var json=this.unfilterJSON();
try {
if(!sanitize || json.isJSON()) return eval('('+json+')');
} catch (e){ }
throw new SyntaxError('Badly formed JSON string:'+this.inspect());
},
include:function(pattern){
return this.indexOf(pattern)>-1;
},
startsWith:function(pattern){
return this.indexOf(pattern) === 0;
},
endsWith:function(pattern){
var d=this.length-pattern.length;
return d >= 0 && this.lastIndexOf(pattern) === d;
},
empty:function(){
return this=='';
},
blank:function(){
return /^\s*$/.test(this);
},
interpolate:function(object, pattern){
return new Template(this, pattern).evaluate(object);
}
});
if(Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
escapeHTML:function(){
return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
},
unescapeHTML:function(){
return this.replace(/&amp;/g,'&').replace(/&lt;/g,'<').replace(/&gt;/g,'>');
}
});
String.prototype.gsub.prepareReplacement=function(replacement){
if(Object.isFunction(replacement)) return replacement;
var template=new Template(replacement);
return function(match){ return template.evaluate(match) };
};
String.prototype.parseQuery=String.prototype.toQueryParams;
Object.extend(String.prototype.escapeHTML, {
div:document.createElement('div'),
text:document.createTextNode('')
});
with (String.prototype.escapeHTML) div.appendChild(text);
var Template=Class.create({
initialize:function(template, pattern){
this.template=template.toString();
this.pattern=pattern || Template.Pattern;
},
evaluate:function(object){
if(Object.isFunction(object.toTemplateReplacements))
object=object.toTemplateReplacements();
return this.template.gsub(this.pattern, function(match){
if(object==null) return '';
var before=match[1] || '';
if(before=='\\') return match[2];
var ctx=object, expr=match[3];
var pattern=/^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
match=pattern.exec(expr);
if(match==null) return before;
while (match != null){
var comp=match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') :match[1];
ctx=ctx[comp];
if(null==ctx || ''==match[3]) break;
expr=expr.substring('['==match[3] ? match[1].length :match[0].length);
match=pattern.exec(expr);
}
return before+String.interpret(ctx);
});
}
});
Template.Pattern=/(^|.|\r|\n)(#\{(.*?)\})/;
var $break={ };
var Enumerable={
each:function(iterator, context){
var index=0;
iterator=iterator.bind(context);
try {
this._each(function(value){
iterator(value, index++);
});
} catch (e){
if(e != $break) throw e;
}
return this;
},
eachSlice:function(number, iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var index=-number, slices=[], array=this.toArray();
while ((index += number) < array.length)
slices.push(array.slice(index, index+number));
return slices.collect(iterator, context);
},
all:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var result=true;
this.each(function(value, index){
result=result && !!iterator(value, index);
if(!result) throw $break;
});
return result;
},
any:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var result=false;
this.each(function(value, index){
if(result=!!iterator(value, index))
throw $break;
});
return result;
},
collect:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var results=[];
this.each(function(value, index){
results.push(iterator(value, index));
});
return results;
},
detect:function(iterator, context){
iterator=iterator.bind(context);
var result;
this.each(function(value, index){
if(iterator(value, index)){
result=value;
throw $break;
}
});
return result;
},
findAll:function(iterator, context){
iterator=iterator.bind(context);
var results=[];
this.each(function(value, index){
if(iterator(value, index))
results.push(value);
});
return results;
},
grep:function(filter, iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var results=[];
if(Object.isString(filter))
filter=new RegExp(filter);
this.each(function(value, index){
if(filter.match(value))
results.push(iterator(value, index));
});
return results;
},
include:function(object){
if(Object.isFunction(this.indexOf))
if(this.indexOf(object) != -1) return true;
var found=false;
this.each(function(value){
if(value==object){
found=true;
throw $break;
}
});
return found;
},
inGroupsOf:function(number, fillWith){
fillWith=Object.isUndefined(fillWith) ? null :fillWith;
return this.eachSlice(number, function(slice){
while(slice.length < number) slice.push(fillWith);
return slice;
});
},
inject:function(memo, iterator, context){
iterator=iterator.bind(context);
this.each(function(value, index){
memo=iterator(memo, value, index);
});
return memo;
},
invoke:function(method){
var args=$A(arguments).slice(1);
return this.map(function(value){
return value[method].apply(value, args);
});
},
max:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var result;
this.each(function(value, index){
value=iterator(value, index);
if(result==null || value >= result)
result=value;
});
return result;
},
min:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var result;
this.each(function(value, index){
value=iterator(value, index);
if(result==null || value < result)
result=value;
});
return result;
},
partition:function(iterator, context){
iterator=iterator ? iterator.bind(context) :Prototype.K;
var trues=[], falses=[];
this.each(function(value, index){
(iterator(value, index) ?
trues :falses).push(value);
});
return [trues, falses];
},
pluck:function(property){
var results=[];
this.each(function(value){
results.push(value[property]);
});
return results;
},
reject:function(iterator, context){
iterator=iterator.bind(context);
var results=[];
this.each(function(value, index){
if(!iterator(value, index))
results.push(value);
});
return results;
},
sortBy:function(iterator, context){
iterator=iterator.bind(context);
return this.map(function(value, index){
return {value:value, criteria:iterator(value, index)};
}).sort(function(left, right){
var a=left.criteria, b=right.criteria;
return a < b ? -1 :a>b ? 1 :0;
}).pluck('value');
},
toArray:function(){
return this.map();
},
zip:function(){
var iterator=Prototype.K, args=$A(arguments);
if(Object.isFunction(args.last()))
iterator=args.pop();
var collections=[this].concat(args).map($A);
return this.map(function(value, index){
return iterator(collections.pluck(index));
});
},
size:function(){
return this.toArray().length;
},
inspect:function(){
return '#<Enumerable:'+this.toArray().inspect()+'>';
}
};
Object.extend(Enumerable, {
map:Enumerable.collect,
find:Enumerable.detect,
select:Enumerable.findAll,
filter:Enumerable.findAll,
member:Enumerable.include,
entries:Enumerable.toArray,
every:Enumerable.all,
some:Enumerable.any
});
function $A(iterable){
if(!iterable) return [];
if(iterable.toArray) return iterable.toArray();
var length=iterable.length || 0, results=new Array(length);
while (length--) results[length]=iterable[length];
return results;
}
if(Prototype.Browser.WebKit){
$A=function(iterable){
if(!iterable) return [];
if(!(Object.isFunction(iterable) && iterable=='[object NodeList]') &&
iterable.toArray) return iterable.toArray();
var length=iterable.length || 0, results=new Array(length);
while (length--) results[length]=iterable[length];
return results;
};
}
Array.from=$A;
Object.extend(Array.prototype, Enumerable);
if(!Array.prototype._reverse) Array.prototype._reverse=Array.prototype.reverse;
Object.extend(Array.prototype, {
_each:function(iterator){
for (var i=0, length=this.length;i < length;i++)
iterator(this[i]);
},
clear:function(){
this.length=0;
return this;
},
first:function(){
return this[0];
},
last:function(){
return this[this.length-1];
},
compact:function(){
return this.select(function(value){
return value != null;
});
},
flatten:function(){
return this.inject([], function(array, value){
return array.concat(Object.isArray(value) ?
value.flatten() :[value]);
});
},
without:function(){
var values=$A(arguments);
return this.select(function(value){
return !values.include(value);
});
},
reverse:function(inline){
return (inline !== false ? this :this.toArray())._reverse();
},
reduce:function(){
return this.length>1 ? this :this[0];
},
uniq:function(sorted){
return this.inject([], function(array, value, index){
if(0==index || (sorted ? array.last() != value :!array.include(value)))
array.push(value);
return array;
});
},
intersect:function(array){
return this.uniq().findAll(function(item){
return array.detect(function(value){ return item === value });
});
},
clone:function(){
return [].concat(this);
},
size:function(){
return this.length;
},
inspect:function(){
return '['+this.map(Object.inspect).join(', ')+']';
},
toJSON:function(){
var results=[];
this.each(function(object){
var value=Object.toJSON(object);
if(!Object.isUndefined(value)) results.push(value);
});
return '['+results.join(', ')+']';
}
});
// use native browser JS 1.6 implementation if available
if(Object.isFunction(Array.prototype.forEach))
Array.prototype._each=Array.prototype.forEach;
if(!Array.prototype.indexOf) Array.prototype.indexOf=function(item, i){
i || (i=0);
var length=this.length;
if(i < 0) i=length+i;
for (;i < length;i++)
if(this[i] === item) return i;
return -1;
};
if(!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf=function(item, i){
i=isNaN(i) ? this.length :(i < 0 ? this.length+i :i)+1;
var n=this.slice(0, i).reverse().indexOf(item);
return (n < 0) ? n :i-n-1;
};
Array.prototype.toArray=Array.prototype.clone;
function $w(string){
if(!Object.isString(string)) return [];
string=string.strip();
return string ? string.split(/\s+/) :[];
}
if(Prototype.Browser.Opera){
Array.prototype.concat=function(){
var array=[];
for (var i=0, length=this.length;i < length;i++) array.push(this[i]);
for (var i=0, length=arguments.length;i < length;i++){
if(Object.isArray(arguments[i])){
for (var j=0, arrayLength=arguments[i].length;j < arrayLength;j++)
array.push(arguments[i][j]);
} else {
array.push(arguments[i]);
}
}
return array;
};
}
Object.extend(Number.prototype, {
toColorPart:function(){
return this.toPaddedString(2, 16);
},
succ:function(){
return this+1;
},
times:function(iterator){
$R(0, this, true).each(iterator);
return this;
},
toPaddedString:function(length, radix){
var string=this.toString(radix || 10);
return '0'.times(length-string.length)+string;
},
toJSON:function(){
return isFinite(this) ? this.toString() :'null';
}
});
$w('abs round ceil floor').each(function(method){
Number.prototype[method]=Math[method].methodize();
});
function $H(object){
return new Hash(object);
};
var Hash=Class.create(Enumerable, (function(){
function toQueryPair(key, value){
if(Object.isUndefined(value)) return key;
return key+'='+encodeURIComponent(String.interpret(value));
}
return {
initialize:function(object){
this._object=Object.isHash(object) ? object.toObject() :Object.clone(object);
},
_each:function(iterator){
for (var key in this._object){
var value=this._object[key], pair=[key, value];
pair.key=key;
pair.value=value;
iterator(pair);
}
},
set:function(key, value){
return this._object[key]=value;
},
get:function(key){
return this._object[key];
},
unset:function(key){
var value=this._object[key];
delete this._object[key];
return value;
},
toObject:function(){
return Object.clone(this._object);
},
keys:function(){
return this.pluck('key');
},
values:function(){
return this.pluck('value');
},
index:function(value){
var match=this.detect(function(pair){
return pair.value === value;
});
return match && match.key;
},
merge:function(object){
return this.clone().update(object);
},
update:function(object){
return new Hash(object).inject(this, function(result, pair){
result.set(pair.key, pair.value);
return result;
});
},
toQueryString:function(){
return this.map(function(pair){
var key=encodeURIComponent(pair.key), values=pair.value;
if(values && typeof values=='object'){
if(Object.isArray(values))
return values.map(toQueryPair.curry(key)).join('&');
}
return toQueryPair(key, values);
}).join('&');
},
inspect:function(){
return '#<Hash:{'+this.map(function(pair){
return pair.map(Object.inspect).join(':');
}).join(', ')+'}>';
},
toJSON:function(){
return Object.toJSON(this.toObject());
},
clone:function(){
return new Hash(this);
}
}
})());
Hash.prototype.toTemplateReplacements=Hash.prototype.toObject;
Hash.from=$H;
var ObjectRange=Class.create(Enumerable, {
initialize:function(start, end, exclusive){
this.start=start;
this.end=end;
this.exclusive=exclusive;
},
_each:function(iterator){
var value=this.start;
while (this.include(value)){
iterator(value);
value=value.succ();
}
},
include:function(value){
if(value < this.start)
return false;
if(this.exclusive)
return value < this.end;
return value <= this.end;
}
});
var $R=function(start, end, exclusive){
return new ObjectRange(start, end, exclusive);
};
var Ajax={
getTransport:function(){
return Try.these(
function(){return new XMLHttpRequest()},
function(){return new ActiveXObject('Msxml2.XMLHTTP')},
function(){return new ActiveXObject('Microsoft.XMLHTTP')}
) || false;
},
activeRequestCount:0
};
Ajax.Responders={
responders:[],
_each:function(iterator){
this.responders._each(iterator);
},
register:function(responder){
if(!this.include(responder))
this.responders.push(responder);
},
unregister:function(responder){
this.responders=this.responders.without(responder);
},
dispatch:function(callback, request, transport, json){
this.each(function(responder){
if(Object.isFunction(responder[callback])){
try {
responder[callback].apply(responder, [request, transport, json]);
} catch (e){ }
}
});
}
};
Object.extend(Ajax.Responders, Enumerable);
Ajax.Responders.register({
onCreate:function(){ Ajax.activeRequestCount++ },
onComplete:function(){ Ajax.activeRequestCount-- }
});
Ajax.Base=Class.create({
initialize:function(options){
this.options={
method:'post',
asynchronous:true,
contentType:'application/x-www-form-urlencoded',
encoding:'UTF-8',
parameters:'',
evalJSON:true,
evalJS:true
};
Object.extend(this.options, options || { });
this.options.method=this.options.method.toLowerCase();
if(Object.isString(this.options.parameters))
this.options.parameters=this.options.parameters.toQueryParams();
else if(Object.isHash(this.options.parameters))
this.options.parameters=this.options.parameters.toObject();
}
});
Ajax.Request=Class.create(Ajax.Base, {
_complete:false,
initialize:function($super, url, options){
$super(options);
this.transport=Ajax.getTransport();
this.request(url);
},
request:function(url){
this.url=url;
this.method=this.options.method;
var params=Object.clone(this.options.parameters);
if(!['get', 'post'].include(this.method)){
// simulate other verbs over post
params['_method']=this.method;
this.method='post';
}
this.parameters=params;
if(params=Object.toQueryString(params)){
// when GET, append parameters to URL
if(this.method=='get')
this.url += (this.url.include('?') ? '&' :'?')+params;
else if(/Konqueror|Safari|KHTML/.test(navigator.userAgent))
params += '&_=';
}
try {
var response=new Ajax.Response(this);
if(this.options.onCreate) this.options.onCreate(response);
Ajax.Responders.dispatch('onCreate', this, response);
this.transport.open(this.method.toUpperCase(), this.url,
this.options.asynchronous);
if(this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);
this.transport.onreadystatechange=this.onStateChange.bind(this);
this.setRequestHeaders();
this.body=this.method=='post' ? (this.options.postBody || params) :null;
this.transport.send(this.body);
/* Force Firefox to handle ready state 4 for synchronous requests */
if(!this.options.asynchronous && this.transport.overrideMimeType)
this.onStateChange();
}
catch (e){
this.dispatchException(e);
}
},
onStateChange:function(){
var readyState=this.transport.readyState;
if(readyState>1 && !((readyState==4) && this._complete))
this.respondToReadyState(this.transport.readyState);
},
setRequestHeaders:function(){
var headers={
'X-Requested-With':'XMLHttpRequest',
'X-Prototype-Version':Prototype.Version,
'Accept':'text/javascript, text/html, application/xml, text/xml, */*'
};
if(this.method=='post'){
headers['Content-type']=this.options.contentType +
(this.options.encoding ? ';charset='+this.options.encoding :'');
/* Force "Connection:close" for older Mozilla browsers to work
 * around a bug where XMLHttpRequest sends an incorrect
 * Content-length header. See Mozilla Bugzilla #246651.
 */
if(this.transport.overrideMimeType &&
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
headers['Connection']='close';
}
// user-defined headers
if(typeof this.options.requestHeaders=='object'){
var extras=this.options.requestHeaders;
if(Object.isFunction(extras.push))
for (var i=0, length=extras.length;i < length;i += 2)
headers[extras[i]]=extras[i+1];
else
$H(extras).each(function(pair){ headers[pair.key]=pair.value });
}
for (var name in headers)
this.transport.setRequestHeader(name, headers[name]);
},
success:function(){
var status=this.getStatus();
return !status || (status >= 200 && status < 300);
},
getStatus:function(){
try {
return this.transport.status || 0;
} catch (e){ return 0 }
},
respondToReadyState:function(readyState){
var state=Ajax.Request.Events[readyState], response=new Ajax.Response(this);
if(state=='Complete'){
try {
this._complete=true;
(this.options['on'+response.status]
 || this.options['on'+(this.success() ? 'Success' :'Failure')]
 || Prototype.emptyFunction)(response, response.headerJSON);
} catch (e){
this.dispatchException(e);
}
var contentType=response.getHeader('Content-type');
if(this.options.evalJS=='force'
|| (this.options.evalJS && this.isSameOrigin() && contentType
&& contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
this.evalResponse();
}
try {
(this.options['on'+state] || Prototype.emptyFunction)(response, response.headerJSON);
Ajax.Responders.dispatch('on'+state, this, response, response.headerJSON);
} catch (e){
this.dispatchException(e);
}
if(state=='Complete'){
// avoid memory leak in MSIE:clean up
this.transport.onreadystatechange=Prototype.emptyFunction;
}
},
isSameOrigin:function(){
var m=this.url.match(/^\s*https?:\/\/[^\/]*/);
return !m || (m[0]=='#{protocol}//#{domain}#{port}'.interpolate({
protocol:location.protocol,
domain:document.domain,
port:location.port ? ':'+location.port :''
}));
},
getHeader:function(name){
try {
return this.transport.getResponseHeader(name) || null;
} catch (e){ return null }
},
evalResponse:function(){
try {
return eval((this.transport.responseText || '').unfilterJSON());
} catch (e){
this.dispatchException(e);
}
},
dispatchException:function(exception){
(this.options.onException || Prototype.emptyFunction)(this, exception);
Ajax.Responders.dispatch('onException', this, exception);
}
});
Ajax.Request.Events =
['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];
Ajax.Response=Class.create({
initialize:function(request){
this.request=request;
var transport =this.transport =request.transport,
readyState=this.readyState=transport.readyState;
if((readyState>2 && !Prototype.Browser.IE) || readyState==4){
this.status      =this.getStatus();
this.statusText  =this.getStatusText();
this.responseText=String.interpret(transport.responseText);
this.headerJSON  =this._getHeaderJSON();
}
if(readyState==4){
var xml=transport.responseXML;
this.responseXML =Object.isUndefined(xml) ? null :xml;
this.responseJSON=this._getResponseJSON();
}
},
status:0,
statusText:'',
getStatus:Ajax.Request.prototype.getStatus,
getStatusText:function(){
try {
return this.transport.statusText || '';
} catch (e){ return '' }
},
getHeader:Ajax.Request.prototype.getHeader,
getAllHeaders:function(){
try {
return this.getAllResponseHeaders();
} catch (e){ return null }
},
getResponseHeader:function(name){
return this.transport.getResponseHeader(name);
},
getAllResponseHeaders:function(){
return this.transport.getAllResponseHeaders();
},
_getHeaderJSON:function(){
var json=this.getHeader('X-JSON');
if(!json) return null;
json=decodeURIComponent(escape(json));
try {
return json.evalJSON(this.request.options.sanitizeJSON ||
!this.request.isSameOrigin());
} catch (e){
this.request.dispatchException(e);
}
},
_getResponseJSON:function(){
var options=this.request.options;
if(!options.evalJSON || (options.evalJSON != 'force' &&
!(this.getHeader('Content-type') || '').include('application/json')) ||
this.responseText.blank())
return null;
try {
return this.responseText.evalJSON(options.sanitizeJSON ||
!this.request.isSameOrigin());
} catch (e){
this.request.dispatchException(e);
}
}
});
Ajax.Updater=Class.create(Ajax.Request, {
initialize:function($super, container, url, options){
this.container={
success:(container.success || container),
failure:(container.failure || (container.success ? null :container))
};
options=Object.clone(options);
var onComplete=options.onComplete;
options.onComplete=(function(response, json){
this.updateContent(response.responseText);
if(Object.isFunction(onComplete)) onComplete(response, json);
}).bind(this);
$super(url, options);
},
updateContent:function(responseText){
var receiver=this.container[this.success() ? 'success' :'failure'],
options=this.options;
if(!options.evalScripts) responseText=responseText.stripScripts();
if(receiver=$(receiver)){
if(options.insertion){
if(Object.isString(options.insertion)){
var insertion={ };insertion[options.insertion]=responseText;
receiver.insert(insertion);
}
else options.insertion(receiver, responseText);
}
else receiver.update(responseText);
}
}
});
Ajax.PeriodicalUpdater=Class.create(Ajax.Base, {
initialize:function($super, container, url, options){
$super(options);
this.onComplete=this.options.onComplete;
this.frequency=(this.options.frequency || 2);
this.decay=(this.options.decay || 1);
this.updater={ };
this.container=container;
this.url=url;
this.start();
},
start:function(){
this.options.onComplete=this.updateComplete.bind(this);
this.onTimerEvent();
},
stop:function(){
this.updater.options.onComplete=undefined;
clearTimeout(this.timer);
(this.onComplete || Prototype.emptyFunction).apply(this, arguments);
},
updateComplete:function(response){
if(this.options.decay){
this.decay=(response.responseText==this.lastText ?
this.decay * this.options.decay :1);
this.lastText=response.responseText;
}
this.timer=this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
},
onTimerEvent:function(){
this.updater=new Ajax.Updater(this.container, this.url, this.options);
}
});
function $(element){
if(arguments.length>1){
for (var i=0, elements=[], length=arguments.length;i < length;i++)
elements.push($(arguments[i]));
return elements;
}
if(Object.isString(element))
element=document.getElementById(element);
return Element.extend(element);
}
if(Prototype.BrowserFeatures.XPath){
document._getElementsByXPath=function(expression, parentElement){
var results=[];
var query=document.evaluate(expression, $(parentElement) || document,
null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
for (var i=0, length=query.snapshotLength;i < length;i++)
results.push(Element.extend(query.snapshotItem(i)));
return results;
};
}
/*--------------------------------------------------------------------------*/
if(!window.Node) var Node={ };
if(!Node.ELEMENT_NODE){
// DOM level 2 ECMAScript Language Binding
Object.extend(Node, {
ELEMENT_NODE:1,
ATTRIBUTE_NODE:2,
TEXT_NODE:3,
CDATA_SECTION_NODE:4,
ENTITY_REFERENCE_NODE:5,
ENTITY_NODE:6,
PROCESSING_INSTRUCTION_NODE:7,
COMMENT_NODE:8,
DOCUMENT_NODE:9,
DOCUMENT_TYPE_NODE:10,
DOCUMENT_FRAGMENT_NODE:11,
NOTATION_NODE:12
});
}
(function(){
var element=this.Element;
this.Element=function(tagName, attributes){
attributes=attributes || { };
tagName=tagName.toLowerCase();
var cache=Element.cache;
if(Prototype.Browser.IE && attributes.name){
tagName='<'+tagName+' name="'+attributes.name+'">';
delete attributes.name;
return Element.writeAttribute(document.createElement(tagName), attributes);
}
if(!cache[tagName]) cache[tagName]=Element.extend(document.createElement(tagName));
return Element.writeAttribute(cache[tagName].cloneNode(false), attributes);
};
Object.extend(this.Element, element || { });
}).call(window);
Element.cache={ };
Element.Methods={
visible:function(element){
return $(element).style.display != 'none';
},
toggle:function(element){
element=$(element);
Element[Element.visible(element) ? 'hide' :'show'](element);
return element;
},
hide:function(element){
$(element).style.display='none';
return element;
},
show:function(element){
$(element).style.display='';
return element;
},
remove:function(element){
element=$(element);
element.parentNode.removeChild(element);
return element;
},
update:function(element, content){
element=$(element);
if(content && content.toElement) content=content.toElement();
if(Object.isElement(content)) return element.update().insert(content);
content=Object.toHTML(content);
element.innerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
},
replace:function(element, content){
element=$(element);
if(content && content.toElement) content=content.toElement();
else if(!Object.isElement(content)){
content=Object.toHTML(content);
var range=element.ownerDocument.createRange();
range.selectNode(element);
content.evalScripts.bind(content).defer();
content=range.createContextualFragment(content.stripScripts());
}
element.parentNode.replaceChild(content, element);
return element;
},
insert:function(element, insertions){
element=$(element);
if(Object.isString(insertions) || Object.isNumber(insertions) ||
Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
insertions={bottom:insertions};
var content, insert, tagName, childNodes;
for (var position in insertions){
content =insertions[position];
position=position.toLowerCase();
insert=Element._insertionTranslations[position];
if(content && content.toElement) content=content.toElement();
if(Object.isElement(content)){
insert(element, content);
continue;
}
content=Object.toHTML(content);
tagName=((position=='before' || position=='after')
? element.parentNode :element).tagName.toUpperCase();
childNodes=Element._getContentFromAnonymousElement(tagName, content.stripScripts());
if(position=='top' || position=='after') childNodes.reverse();
childNodes.each(insert.curry(element));
content.evalScripts.bind(content).defer();
}
return element;
},
wrap:function(element, wrapper, attributes){
element=$(element);
if(Object.isElement(wrapper))
$(wrapper).writeAttribute(attributes || { });
else if(Object.isString(wrapper)) wrapper=new Element(wrapper, attributes);
else wrapper=new Element('div', wrapper);
if(element.parentNode)
element.parentNode.replaceChild(wrapper, element);
wrapper.appendChild(element);
return wrapper;
},
inspect:function(element){
element=$(element);
var result='<'+element.tagName.toLowerCase();
$H({'id':'id', 'className':'class'}).each(function(pair){
var property=pair.first(), attribute=pair.last();
var value=(element[property] || '').toString();
if(value) result += ' '+attribute+'='+value.inspect(true);
});
return result+'>';
},
recursivelyCollect:function(element, property){
element=$(element);
var elements=[];
while (element=element[property])
if(element.nodeType==1)
elements.push(Element.extend(element));
return elements;
},
ancestors:function(element){
return $(element).recursivelyCollect('parentNode');
},
descendants:function(element){
return $(element).select("*");
},
firstDescendant:function(element){
element=$(element).firstChild;
while (element && element.nodeType != 1) element=element.nextSibling;
return $(element);
},
immediateDescendants:function(element){
if(!(element=$(element).firstChild)) return [];
while (element && element.nodeType != 1) element=element.nextSibling;
if(element) return [element].concat($(element).nextSiblings());
return [];
},
previousSiblings:function(element){
return $(element).recursivelyCollect('previousSibling');
},
nextSiblings:function(element){
return $(element).recursivelyCollect('nextSibling');
},
siblings:function(element){
element=$(element);
return element.previousSiblings().reverse().concat(element.nextSiblings());
},
match:function(element, selector){
if(Object.isString(selector))
selector=new Selector(selector);
return selector.match($(element));
},
up:function(element, expression, index){
element=$(element);
if(arguments.length==1) return $(element.parentNode);
var ancestors=element.ancestors();
return Object.isNumber(expression) ? ancestors[expression] :
Selector.findElement(ancestors, expression, index);
},
down:function(element, expression, index){
element=$(element);
if(arguments.length==1) return element.firstDescendant();
return Object.isNumber(expression) ? element.descendants()[expression] :
element.select(expression)[index || 0];
},
previous:function(element, expression, index){
element=$(element);
if(arguments.length==1) return $(Selector.handlers.previousElementSibling(element));
var previousSiblings=element.previousSiblings();
return Object.isNumber(expression) ? previousSiblings[expression] :
Selector.findElement(previousSiblings, expression, index);
},
next:function(element, expression, index){
element=$(element);
if(arguments.length==1) return $(Selector.handlers.nextElementSibling(element));
var nextSiblings=element.nextSiblings();
return Object.isNumber(expression) ? nextSiblings[expression] :
Selector.findElement(nextSiblings, expression, index);
},
select:function(){
var args=$A(arguments), element=$(args.shift());
return Selector.findChildElements(element, args);
},
adjacent:function(){
var args=$A(arguments), element=$(args.shift());
return Selector.findChildElements(element.parentNode, args).without(element);
},
identify:function(element){
element=$(element);
var id=element.readAttribute('id'), self=arguments.callee;
if(id) return id;
do { id='anonymous_element_'+self.counter++ } while ($(id));
element.writeAttribute('id', id);
return id;
},
readAttribute:function(element, name){
element=$(element);
if(Prototype.Browser.IE){
var t=Element._attributeTranslations.read;
if(t.values[name]) return t.values[name](element, name);
if(t.names[name]) name=t.names[name];
if(name.include(':')){
return (!element.attributes || !element.attributes[name]) ? null :
 element.attributes[name].value;
}
}
return element.getAttribute(name);
},
writeAttribute:function(element, name, value){
element=$(element);
var attributes={ }, t=Element._attributeTranslations.write;
if(typeof name=='object') attributes=name;
else attributes[name]=Object.isUndefined(value) ? true :value;
for (var attr in attributes){
name=t.names[attr] || attr;
value=attributes[attr];
if(t.values[attr]) name=t.values[attr](element, value);
if(value === false || value === null)
element.removeAttribute(name);
else if(value === true)
element.setAttribute(name, name);
else element.setAttribute(name, value);
}
return element;
},
getHeight:function(element){
return $(element).getDimensions().height;
},
getWidth:function(element){
return $(element).getDimensions().width;
},
classNames:function(element){
return new Element.ClassNames(element);
},
hasClassName:function(element, className){
if(!(element=$(element))) return;
var elementClassName=element.className;
return (elementClassName.length>0 && (elementClassName==className ||
new RegExp("(^|\\s)"+className+"(\\s|$)").test(elementClassName)));
},
addClassName:function(element, className){
if(!(element=$(element))) return;
if(!element.hasClassName(className))
element.className += (element.className ? ' ' :'')+className;
return element;
},
removeClassName:function(element, className){
if(!(element=$(element))) return;
element.className=element.className.replace(
new RegExp("(^|\\s+)"+className+"(\\s+|$)"), ' ').strip();
return element;
},
toggleClassName:function(element, className){
if(!(element=$(element))) return;
return element[element.hasClassName(className) ?
'removeClassName' :'addClassName'](className);
},
// removes whitespace-only text node children
cleanWhitespace:function(element){
element=$(element);
var node=element.firstChild;
while (node){
var nextNode=node.nextSibling;
if(node.nodeType==3 && !/\S/.test(node.nodeValue))
element.removeChild(node);
node=nextNode;
}
return element;
},
empty:function(element){
return $(element).innerHTML.blank();
},
descendantOf:function(element, ancestor){
element=$(element), ancestor=$(ancestor);
var originalAncestor=ancestor;
if(element.compareDocumentPosition)
return (element.compareDocumentPosition(ancestor) & 8) === 8;
if(element.sourceIndex && !Prototype.Browser.Opera){
var e=element.sourceIndex, a=ancestor.sourceIndex,
 nextAncestor=ancestor.nextSibling;
if(!nextAncestor){
do { ancestor=ancestor.parentNode;}
while (!(nextAncestor=ancestor.nextSibling) && ancestor.parentNode);
}
if(nextAncestor && nextAncestor.sourceIndex)
 return (e>a && e < nextAncestor.sourceIndex);
}
while (element=element.parentNode)
if(element==originalAncestor) return true;
return false;
},
scrollTo:function(element){
element=$(element);
var pos=element.cumulativeOffset();
window.scrollTo(pos[0], pos[1]);
return element;
},
getStyle:function(element, style){
element=$(element);
style=style=='float' ? 'cssFloat' :style.camelize();
var value=element.style[style];
if(!value){
var css=document.defaultView.getComputedStyle(element, null);
value=css ? css[style] :null;
}
if(style=='opacity') return value ? parseFloat(value) :1.0;
return value=='auto' ? null :value;
},
getOpacity:function(element){
return $(element).getStyle('opacity');
},
setStyle:function(element, styles){
element=$(element);
var elementStyle=element.style, match;
if(Object.isString(styles)){
element.style.cssText += ';'+styles;
return styles.include('opacity') ?
element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) :element;
}
for (var property in styles)
if(property=='opacity') element.setOpacity(styles[property]);
else
elementStyle[(property=='float' || property=='cssFloat') ?
(Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' :'styleFloat') :
property]=styles[property];
return element;
},
setOpacity:function(element, value){
element=$(element);
element.style.opacity=(value==1 || value === '') ? '' :
(value < 0.00001) ? 0 :value;
return element;
},
getDimensions:function(element){
element=$(element);
var display=$(element).getStyle('display');
if(display != 'none' && display != null) // Safari bug
return {width:element.offsetWidth, height:element.offsetHeight};
// All *Width and *Height properties give 0 on elements with display none,
// so enable the element temporarily
var els=element.style;
var originalVisibility=els.visibility;
var originalPosition=els.position;
var originalDisplay=els.display;
els.visibility='hidden';
els.position='absolute';
els.display='block';
var originalWidth=element.clientWidth;
var originalHeight=element.clientHeight;
els.display=originalDisplay;
els.position=originalPosition;
els.visibility=originalVisibility;
return {width:originalWidth, height:originalHeight};
},
makePositioned:function(element){
element=$(element);
var pos=Element.getStyle(element, 'position');
if(pos=='static' || !pos){
element._madePositioned=true;
element.style.position='relative';
// Opera returns the offset relative to the positioning context, when an
// element is position relative but top and left have not been defined
if(window.opera){
element.style.top=0;
element.style.left=0;
}
}
return element;
},
undoPositioned:function(element){
element=$(element);
if(element._madePositioned){
element._madePositioned=undefined;
element.style.position =
element.style.top =
element.style.left =
element.style.bottom =
element.style.right='';
}
return element;
},
makeClipping:function(element){
element=$(element);
if(element._overflow) return element;
element._overflow=Element.getStyle(element, 'overflow') || 'auto';
if(element._overflow !== 'hidden')
element.style.overflow='hidden';
return element;
},
undoClipping:function(element){
element=$(element);
if(!element._overflow) return element;
element.style.overflow=element._overflow=='auto' ? '' :element._overflow;
element._overflow=null;
return element;
},
cumulativeOffset:function(element){
var valueT=0, valueL=0;
do {
valueT += element.offsetTop  || 0;
valueL += element.offsetLeft || 0;
element=element.offsetParent;
} while (element);
return Element._returnOffset(valueL, valueT);
},
positionedOffset:function(element){
var valueT=0, valueL=0;
do {
valueT += element.offsetTop  || 0;
valueL += element.offsetLeft || 0;
element=element.offsetParent;
if(element){
if(element.tagName=='BODY') break;
var p=Element.getStyle(element, 'position');
if(p !== 'static') break;
}
} while (element);
return Element._returnOffset(valueL, valueT);
},
absolutize:function(element){
element=$(element);
if(element.getStyle('position')=='absolute') return;
// Position.prepare();// To be done manually by Scripty when it needs it.
var offsets=element.positionedOffset();
var top    =offsets[1];
var left   =offsets[0];
var width  =element.clientWidth;
var height =element.clientHeight;
element._originalLeft  =left-parseFloat(element.style.left  || 0);
element._originalTop   =top -parseFloat(element.style.top || 0);
element._originalWidth =element.style.width;
element._originalHeight=element.style.height;
element.style.position='absolute';
element.style.top   =top+'px';
element.style.left  =left+'px';
element.style.width =width+'px';
element.style.height=height+'px';
return element;
},
relativize:function(element){
element=$(element);
if(element.getStyle('position')=='relative') return;
// Position.prepare();// To be done manually by Scripty when it needs it.
element.style.position='relative';
var top =parseFloat(element.style.top  || 0)-(element._originalTop || 0);
var left=parseFloat(element.style.left || 0)-(element._originalLeft || 0);
element.style.top   =top+'px';
element.style.left  =left+'px';
element.style.height=element._originalHeight;
element.style.width =element._originalWidth;
return element;
},
cumulativeScrollOffset:function(element){
var valueT=0, valueL=0;
do {
valueT += element.scrollTop  || 0;
valueL += element.scrollLeft || 0;
element=element.parentNode;
} while (element);
return Element._returnOffset(valueL, valueT);
},
getOffsetParent:function(element){
if(element.offsetParent) return $(element.offsetParent);
if(element==document.body) return $(element);
while ((element=element.parentNode) && element != document.body)
if(Element.getStyle(element, 'position') != 'static')
return $(element);
return $(document.body);
},
viewportOffset:function(forElement){
var valueT=0, valueL=0;
var element=forElement;
do {
valueT += element.offsetTop  || 0;
valueL += element.offsetLeft || 0;
// Safari fix
if(element.offsetParent==document.body &&
Element.getStyle(element, 'position')=='absolute') break;
} while (element=element.offsetParent);
element=forElement;
do {
if(!Prototype.Browser.Opera || element.tagName=='BODY'){
valueT -= element.scrollTop  || 0;
valueL -= element.scrollLeft || 0;
}
} while (element=element.parentNode);
return Element._returnOffset(valueL, valueT);
},
clonePosition:function(element, source){
var options=Object.extend({
setLeft:true,
setTop:true,
setWidth:true,
setHeight:true,
offsetTop:0,
offsetLeft:0
}, arguments[2] || { });
// find page position of source
source=$(source);
var p=source.viewportOffset();
// find coordinate system to use
element=$(element);
var delta=[0, 0];
var parent=null;
// delta [0,0] will do fine with position:fixed elements,
// position:absolute needs offsetParent deltas
if(Element.getStyle(element, 'position')=='absolute'){
parent=element.getOffsetParent();
delta=parent.viewportOffset();
}
// correct by body offsets (fixes Safari)
if(parent==document.body){
delta[0] -= document.body.offsetLeft;
delta[1] -= document.body.offsetTop;
}
// set position
if(options.setLeft)   element.style.left =(p[0]-delta[0]+options.offsetLeft)+'px';
if(options.setTop)    element.style.top  =(p[1]-delta[1]+options.offsetTop)+'px';
if(options.setWidth)  element.style.width=source.offsetWidth+'px';
if(options.setHeight) element.style.height=source.offsetHeight+'px';
return element;
}
};
Element.Methods.identify.counter=1;
Object.extend(Element.Methods, {
getElementsBySelector:Element.Methods.select,
childElements:Element.Methods.immediateDescendants
});
Element._attributeTranslations={
write:{
names:{
className:'class',
htmlFor:'for'
},
values:{ }
}
};
if(Prototype.Browser.Opera){
Element.Methods.getStyle=Element.Methods.getStyle.wrap(
function(proceed, element, style){
switch (style){
case 'left':case 'top':case 'right':case 'bottom':
if(proceed(element, 'position') === 'static') return null;
case 'height':case 'width':
// returns '0px' for hidden elements;we want it to return null
if(!Element.visible(element)) return null;
// returns the border-box dimensions rather than the content-box
// dimensions, so we subtract padding and borders from the value
var dim=parseInt(proceed(element, style), 10);
if(dim !== element['offset'+style.capitalize()])
return dim+'px';
var properties;
if(style === 'height'){
properties=['border-top-width', 'padding-top',
 'padding-bottom', 'border-bottom-width'];
}
else {
properties=['border-left-width', 'padding-left',
 'padding-right', 'border-right-width'];
}
return properties.inject(dim, function(memo, property){
var val=proceed(element, property);
return val === null ? memo :memo-parseInt(val, 10);
})+'px';
default:return proceed(element, style);
}
}
);
Element.Methods.readAttribute=Element.Methods.readAttribute.wrap(
function(proceed, element, attribute){
if(attribute === 'title') return element.title;
return proceed(element, attribute);
}
);
}
else if(Prototype.Browser.IE){
// IE doesn't report offsets correctly for static elements, so we change them
// to "relative" to get the values, then change them back.
Element.Methods.getOffsetParent=Element.Methods.getOffsetParent.wrap(
function(proceed, element){
element=$(element);
var position=element.getStyle('position');
if(position !== 'static') return proceed(element);
element.setStyle({ position:'relative' });
var value=proceed(element);
element.setStyle({ position:position });
return value;
}
);
$w('positionedOffset viewportOffset').each(function(method){
Element.Methods[method]=Element.Methods[method].wrap(
function(proceed, element){
element=$(element);
var position=element.getStyle('position');
if(position !== 'static') return proceed(element);
// Trigger hasLayout on the offset parent so that IE6 reports
// accurate offsetTop and offsetLeft values for position:fixed.
var offsetParent=element.getOffsetParent();
if(offsetParent && offsetParent.getStyle('position') === 'fixed')
offsetParent.setStyle({ zoom:1 });
element.setStyle({ position:'relative' });
var value=proceed(element);
element.setStyle({ position:position });
return value;
}
);
});
Element.Methods.getStyle=function(element, style){
element=$(element);
style=(style=='float' || style=='cssFloat') ? 'styleFloat' :style.camelize();
var value=element.style[style];
if(!value && element.currentStyle) value=element.currentStyle[style];
if(style=='opacity'){
if(value=(element.getStyle('filter') || '').match(/alpha\(opacity=(.*)\)/))
if(value[1]) return parseFloat(value[1]) / 100;
return 1.0;
}
if(value=='auto'){
if((style=='width' || style=='height') && (element.getStyle('display') != 'none'))
return element['offset'+style.capitalize()]+'px';
return null;
}
return value;
};
Element.Methods.setOpacity=function(element, value){
function stripAlpha(filter){
return filter.replace(/alpha\([^\)]*\)/gi,'');
}
element=$(element);
var currentStyle=element.currentStyle;
if((currentStyle && !currentStyle.hasLayout) ||
(!currentStyle && element.style.zoom=='normal'))
element.style.zoom=1;
var filter=element.getStyle('filter'), style=element.style;
if(value==1 || value === ''){
(filter=stripAlpha(filter)) ?
style.filter=filter :style.removeAttribute('filter');
return element;
} else if(value < 0.00001) value=0;
style.filter=stripAlpha(filter) +
'alpha(opacity='+(value * 100)+')';
return element;
};
Element._attributeTranslations={
read:{
names:{
'class':'className',
'for':'htmlFor'
},
values:{
_getAttr:function(element, attribute){
return element.getAttribute(attribute, 2);
},
_getAttrNode:function(element, attribute){
var node=element.getAttributeNode(attribute);
return node ? node.value :"";
},
_getEv:function(element, attribute){
attribute=element.getAttribute(attribute);
return attribute ? attribute.toString().slice(23, -2) :null;
},
_flag:function(element, attribute){
return $(element).hasAttribute(attribute) ? attribute :null;
},
style:function(element){
return element.style.cssText.toLowerCase();
},
title:function(element){
return element.title;
}
}
}
};
Element._attributeTranslations.write={
names:Object.extend({
cellpadding:'cellPadding',
cellspacing:'cellSpacing'
}, Element._attributeTranslations.read.names),
values:{
checked:function(element, value){
element.checked=!!value;
},
style:function(element, value){
element.style.cssText=value ? value :'';
}
}
};
Element._attributeTranslations.has={};
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
'encType maxLength readOnly longDesc').each(function(attr){
Element._attributeTranslations.write.names[attr.toLowerCase()]=attr;
Element._attributeTranslations.has[attr.toLowerCase()]=attr;
});
(function(v){
Object.extend(v, {
href:v._getAttr,
src:v._getAttr,
type:v._getAttr,
action:v._getAttrNode,
disabled:v._flag,
checked:v._flag,
readonly:v._flag,
multiple:v._flag,
onload:v._getEv,
onunload:v._getEv,
onclick:v._getEv,
ondblclick:v._getEv,
onmousedown:v._getEv,
onmouseup:v._getEv,
onmouseover:v._getEv,
onmousemove:v._getEv,
onmouseout:v._getEv,
onfocus:v._getEv,
onblur:v._getEv,
onkeypress:v._getEv,
onkeydown:v._getEv,
onkeyup:v._getEv,
onsubmit:v._getEv,
onreset:v._getEv,
onselect:v._getEv,
onchange:v._getEv
});
})(Element._attributeTranslations.read.values);
}
else if(Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)){
Element.Methods.setOpacity=function(element, value){
element=$(element);
element.style.opacity=(value==1) ? 0.999999 :
(value === '') ? '' :(value < 0.00001) ? 0 :value;
return element;
};
}
else if(Prototype.Browser.WebKit){
Element.Methods.setOpacity=function(element, value){
element=$(element);
element.style.opacity=(value==1 || value === '') ? '' :
(value < 0.00001) ? 0 :value;
if(value==1)
if(element.tagName=='IMG' && element.width){
element.width++;element.width--;
} else try {
var n=document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);
} catch (e){ }
return element;
};
// Safari returns margins on body which is incorrect if the child is absolutely
// positioned.  For performance reasons, redefine Element#cumulativeOffset for
// KHTML/WebKit only.
Element.Methods.cumulativeOffset=function(element){
var valueT=0, valueL=0;
do {
valueT += element.offsetTop  || 0;
valueL += element.offsetLeft || 0;
if(element.offsetParent==document.body)
if(Element.getStyle(element, 'position')=='absolute') break;
element=element.offsetParent;
} while (element);
return Element._returnOffset(valueL, valueT);
};
}
if(Prototype.Browser.IE || Prototype.Browser.Opera){
// IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
Element.Methods.update=function(element, content){
element=$(element);
if(content && content.toElement) content=content.toElement();
if(Object.isElement(content)) return element.update().insert(content);
content=Object.toHTML(content);
var tagName=element.tagName.toUpperCase();
if(tagName in Element._insertionTranslations.tags){
$A(element.childNodes).each(function(node){ element.removeChild(node) });
Element._getContentFromAnonymousElement(tagName, content.stripScripts())
.each(function(node){ element.appendChild(node) });
}
else element.innerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
if('outerHTML' in document.createElement('div')){
Element.Methods.replace=function(element, content){
element=$(element);
if(content && content.toElement) content=content.toElement();
if(Object.isElement(content)){
element.parentNode.replaceChild(content, element);
return element;
}
content=Object.toHTML(content);
var parent=element.parentNode, tagName=parent.tagName.toUpperCase();
if(Element._insertionTranslations.tags[tagName]){
var nextSibling=element.next();
var fragments=Element._getContentFromAnonymousElement(tagName, content.stripScripts());
parent.removeChild(element);
if(nextSibling)
fragments.each(function(node){ parent.insertBefore(node, nextSibling) });
else
fragments.each(function(node){ parent.appendChild(node) });
}
else element.outerHTML=content.stripScripts();
content.evalScripts.bind(content).defer();
return element;
};
}
Element._returnOffset=function(l, t){
var result=[l, t];
result.left=l;
result.top=t;
return result;
};
Element._getContentFromAnonymousElement=function(tagName, html){
var div=new Element('div'), t=Element._insertionTranslations.tags[tagName];
if(t){
div.innerHTML=t[0]+html+t[1];
t[2].times(function(){ div=div.firstChild });
} else div.innerHTML=html;
return $A(div.childNodes);
};
Element._insertionTranslations={
before:function(element, node){
element.parentNode.insertBefore(node, element);
},
top:function(element, node){
element.insertBefore(node, element.firstChild);
},
bottom:function(element, node){
element.appendChild(node);
},
after:function(element, node){
element.parentNode.insertBefore(node, element.nextSibling);
},
tags:{
TABLE:['<table>',                '</table>',                   1],
TBODY:['<table><tbody>',         '</tbody></table>',           2],
TR:['<table><tbody><tr>',     '</tr></tbody></table>',      3],
TD:['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
SELECT:['<select>',               '</select>',                  1]
}
};
(function(){
Object.extend(this.tags, {
THEAD:this.tags.TBODY,
TFOOT:this.tags.TBODY,
TH:this.tags.TD
});
}).call(Element._insertionTranslations);
Element.Methods.Simulated={
hasAttribute:function(element, attribute){
attribute=Element._attributeTranslations.has[attribute] || attribute;
var node=$(element).getAttributeNode(attribute);
return node && node.specified;
}
};
Element.Methods.ByTag={ };
Object.extend(Element, Element.Methods);
if(!Prototype.BrowserFeatures.ElementExtensions &&
document.createElement('div').__proto__){
window.HTMLElement={ };
window.HTMLElement.prototype=document.createElement('div').__proto__;
Prototype.BrowserFeatures.ElementExtensions=true;
}
Element.extend=(function(){
if(Prototype.BrowserFeatures.SpecificElementExtensions)
return Prototype.K;
var Methods={ }, ByTag=Element.Methods.ByTag;
var extend=Object.extend(function(element){
if(!element || element._extendedByPrototype ||
element.nodeType != 1 || element==window) return element;
var methods=Object.clone(Methods),
tagName=element.tagName, property, value;
// extend methods for specific tags
if(ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
for (property in methods){
value=methods[property];
if(Object.isFunction(value) && !(property in element))
element[property]=value.methodize();
}
element._extendedByPrototype=Prototype.emptyFunction;
return element;
}, {
refresh:function(){
// extend methods for all tags (Safari doesn't need this)
if(!Prototype.BrowserFeatures.ElementExtensions){
Object.extend(Methods, Element.Methods);
Object.extend(Methods, Element.Methods.Simulated);
}
}
});
extend.refresh();
return extend;
})();
Element.hasAttribute=function(element, attribute){
if(element.hasAttribute) return element.hasAttribute(attribute);
return Element.Methods.Simulated.hasAttribute(element, attribute);
};
Element.addMethods=function(methods){
var F=Prototype.BrowserFeatures, T=Element.Methods.ByTag;
if(!methods){
Object.extend(Form, Form.Methods);
Object.extend(Form.Element, Form.Element.Methods);
Object.extend(Element.Methods.ByTag, {
"FORM":Object.clone(Form.Methods),
"INPUT":Object.clone(Form.Element.Methods),
"SELECT":Object.clone(Form.Element.Methods),
"TEXTAREA":Object.clone(Form.Element.Methods)
});
}
if(arguments.length==2){
var tagName=methods;
methods=arguments[1];
}
if(!tagName) Object.extend(Element.Methods, methods || { });
else {
if(Object.isArray(tagName)) tagName.each(extend);
else extend(tagName);
}
function extend(tagName){
tagName=tagName.toUpperCase();
if(!Element.Methods.ByTag[tagName])
Element.Methods.ByTag[tagName]={ };
Object.extend(Element.Methods.ByTag[tagName], methods);
}
function copy(methods, destination, onlyIfAbsent){
onlyIfAbsent=onlyIfAbsent || false;
for (var property in methods){
var value=methods[property];
if(!Object.isFunction(value)) continue;
if(!onlyIfAbsent || !(property in destination))
destination[property]=value.methodize();
}
}
function findDOMClass(tagName){
var klass;
var trans={
"OPTGROUP":"OptGroup", "TEXTAREA":"TextArea", "P":"Paragraph",
"FIELDSET":"FieldSet", "UL":"UList", "OL":"OList", "DL":"DList",
"DIR":"Directory", "H1":"Heading", "H2":"Heading", "H3":"Heading",
"H4":"Heading", "H5":"Heading", "H6":"Heading", "Q":"Quote",
"INS":"Mod", "DEL":"Mod", "A":"Anchor", "IMG":"Image", "CAPTION":
"TableCaption", "COL":"TableCol", "COLGROUP":"TableCol", "THEAD":
"TableSection", "TFOOT":"TableSection", "TBODY":"TableSection", "TR":
"TableRow", "TH":"TableCell", "TD":"TableCell", "FRAMESET":
"FrameSet", "IFRAME":"IFrame"
};
if(trans[tagName]) klass='HTML'+trans[tagName]+'Element';
if(window[klass]) return window[klass];
klass='HTML'+tagName+'Element';
if(window[klass]) return window[klass];
klass='HTML'+tagName.capitalize()+'Element';
if(window[klass]) return window[klass];
window[klass]={ };
window[klass].prototype=document.createElement(tagName).__proto__;
return window[klass];
}
if(F.ElementExtensions){
copy(Element.Methods, HTMLElement.prototype);
copy(Element.Methods.Simulated, HTMLElement.prototype, true);
}
if(F.SpecificElementExtensions){
for (var tag in Element.Methods.ByTag){
var klass=findDOMClass(tag);
if(Object.isUndefined(klass)) continue;
copy(T[tag], klass.prototype);
}
}
Object.extend(Element, Element.Methods);
delete Element.ByTag;
if(Element.extend.refresh) Element.extend.refresh();
Element.cache={ };
};
document.viewport={
getDimensions:function(){
var dimensions={ };
var B=Prototype.Browser;
$w('width height').each(function(d){
var D=d.capitalize();
dimensions[d]=(B.WebKit && !document.evaluate) ? self['inner'+D] :
(B.Opera) ? document.body['client'+D] :document.documentElement['client'+D];
});
return dimensions;
},
getWidth:function(){
return this.getDimensions().width;
},
getHeight:function(){
return this.getDimensions().height;
},
getScrollOffsets:function(){
return Element._returnOffset(
window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
}
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */
var Selector=Class.create({
initialize:function(expression){
this.expression=expression.strip();
this.compileMatcher();
},
shouldUseXPath:function(){
if(!Prototype.BrowserFeatures.XPath) return false;
var e=this.expression;
// Safari 3 chokes on :*-of-type and :empty
if(Prototype.Browser.WebKit &&
 (e.include("-of-type") || e.include(":empty")))
return false;
// XPath can't do namespaced attributes, nor can it read
// the "checked" property from DOM nodes
if((/(\[[\w-]*?:|:checked)/).test(this.expression))
return false;
return true;
},
compileMatcher:function(){
if(this.shouldUseXPath())
return this.compileXPathMatcher();
var e=this.expression, ps=Selector.patterns, h=Selector.handlers,
c=Selector.criteria, le, p, m;
if(Selector._cache[e]){
this.matcher=Selector._cache[e];
return;
}
this.matcher=["this.matcher=function(root){",
"var r=root, h=Selector.handlers, c=false, n;"];
while (e && le != e && (/\S/).test(e)){
le=e;
for (var i in ps){
p=ps[i];
if(m=e.match(p)){
this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
	      new Template(c[i]).evaluate(m));
e=e.replace(m[0], '');
break;
}
}
}
this.matcher.push("return h.unique(n);\n}");
eval(this.matcher.join('\n'));
Selector._cache[this.expression]=this.matcher;
},
compileXPathMatcher:function(){
var e=this.expression, ps=Selector.patterns,
x=Selector.xpath, le, m;
if(Selector._cache[e]){
this.xpath=Selector._cache[e];return;
}
this.matcher=['.//*'];
while (e && le != e && (/\S/).test(e)){
le=e;
for (var i in ps){
if(m=e.match(ps[i])){
this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
new Template(x[i]).evaluate(m));
e=e.replace(m[0], '');
break;
}
}
}
this.xpath=this.matcher.join('');
Selector._cache[this.expression]=this.xpath;
},
findElements:function(root){
root=root || document;
if(this.xpath) return document._getElementsByXPath(this.xpath, root);
return this.matcher(root);
},
match:function(element){
this.tokens=[];
var e=this.expression, ps=Selector.patterns, as=Selector.assertions;
var le, p, m;
while (e && le !== e && (/\S/).test(e)){
le=e;
for (var i in ps){
p=ps[i];
if(m=e.match(p)){
// use the Selector.assertions methods unless the selector
// is too complex.
if(as[i]){
this.tokens.push([i, Object.clone(m)]);
e=e.replace(m[0], '');
} else {
// reluctantly do a document-wide search
// and look for a match in the array
return this.findElements(document).include(element);
}
}
}
}
var match=true, name, matches;
for (var i=0, token;token=this.tokens[i];i++){
name=token[0], matches=token[1];
if(!Selector.assertions[name](element, matches)){
match=false;break;
}
}
return match;
},
toString:function(){
return this.expression;
},
inspect:function(){
return "#<Selector:"+this.expression.inspect()+">";
}
});
Object.extend(Selector, {
_cache:{ },
xpath:{
descendant:"//*",
child:"/*",
adjacent:"/following-sibling::*[1]",
laterSibling:'/following-sibling::*',
tagName:function(m){
if(m[1]=='*') return '';
return "[local-name()='"+m[1].toLowerCase() +
 "' or local-name()='"+m[1].toUpperCase()+"']";
},
className:"[contains(concat(' ', @class, ' '), ' #{1} ')]",
id:"[@id='#{1}']",
attrPresence:function(m){
m[1]=m[1].toLowerCase();
return new Template("[@#{1}]").evaluate(m);
},
attr:function(m){
m[1]=m[1].toLowerCase();
m[3]=m[5] || m[6];
return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
},
pseudo:function(m){
var h=Selector.xpath.pseudos[m[1]];
if(!h) return '';
if(Object.isFunction(h)) return h(m);
return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
},
operators:{
'=':"[@#{1}='#{3}']",
'!=':"[@#{1}!='#{3}']",
'^=':"[starts-with(@#{1}, '#{3}')]",
'$=':"[substring(@#{1}, (string-length(@#{1})-string-length('#{3}')+1))='#{3}']",
'*=':"[contains(@#{1}, '#{3}')]",
'~=':"[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
'|=':"[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
},
pseudos:{
'first-child':'[not(preceding-sibling::*)]',
'last-child':'[not(following-sibling::*)]',
'only-child':'[not(preceding-sibling::* or following-sibling::*)]',
'empty':"[count(*)=0 and (count(text())=0 or translate(text(), ' \t\r\n', '')='')]",
'checked':"[@checked]",
'disabled':"[@disabled]",
'enabled':"[not(@disabled)]",
'not':function(m){
var e=m[6], p=Selector.patterns,
x=Selector.xpath, le, v;
var exclusion=[];
while (e && le != e && (/\S/).test(e)){
le=e;
for (var i in p){
if(m=e.match(p[i])){
v=Object.isFunction(x[i]) ? x[i](m) :new Template(x[i]).evaluate(m);
exclusion.push("("+v.substring(1, v.length-1)+")");
e=e.replace(m[0], '');
break;
}
}
}
return "[not("+exclusion.join(" and ")+")]";
},
'nth-child':function(m){
return Selector.xpath.pseudos.nth("(count(./preceding-sibling::*)+1) ", m);
},
'nth-last-child':function(m){
return Selector.xpath.pseudos.nth("(count(./following-sibling::*)+1) ", m);
},
'nth-of-type':function(m){
return Selector.xpath.pseudos.nth("position() ", m);
},
'nth-last-of-type':function(m){
return Selector.xpath.pseudos.nth("(last()+1-position()) ", m);
},
'first-of-type':function(m){
m[6]="1";return Selector.xpath.pseudos['nth-of-type'](m);
},
'last-of-type':function(m){
m[6]="1";return Selector.xpath.pseudos['nth-last-of-type'](m);
},
'only-of-type':function(m){
var p=Selector.xpath.pseudos;return p['first-of-type'](m)+p['last-of-type'](m);
},
nth:function(fragment, m){
var mm, formula=m[6], predicate;
if(formula=='even') formula='2n+0';
if(formula=='odd')  formula='2n+1';
if(mm=formula.match(/^(\d+)$/)) // digit only
return '['+fragment+"= "+mm[1]+']';
if(mm=formula.match(/^(-?\d*)?n(([+-])(\d+))?/)){ // an+b
if(mm[1]=="-") mm[1]=-1;
var a=mm[1] ? Number(mm[1]) :1;
var b=mm[2] ? Number(mm[2]) :0;
predicate="[((#{fragment}-#{b}) mod #{a}=0) and " +
"((#{fragment}-#{b}) div #{a} >= 0)]";
return new Template(predicate).evaluate({
fragment:fragment, a:a, b:b });
}
}
}
},
criteria:{
tagName:'n=h.tagName(n, r, "#{1}", c);     c=false;',
className:'n=h.className(n, r, "#{1}", c);   c=false;',
id:'n=h.id(n, r, "#{1}", c);          c=false;',
attrPresence:'n=h.attrPresence(n, r, "#{1}", c);c=false;',
attr:function(m){
m[3]=(m[5] || m[6]);
return new Template('n=h.attr(n, r, "#{1}", "#{3}", "#{2}", c);c=false;').evaluate(m);
},
pseudo:function(m){
if(m[6]) m[6]=m[6].replace(/"/g, '\\"');
return new Template('n=h.pseudo(n, "#{1}", "#{6}", r, c);c=false;').evaluate(m);
},
descendant:'c="descendant";',
child:'c="child";',
adjacent:'c="adjacent";',
laterSibling:'c="laterSibling";'
},
patterns:{
// combinators must be listed first
// (and descendant needs to be last combinator)
laterSibling:/^\s*~\s*/,
child:/^\s*>\s*/,
adjacent:/^\s*\+\s*/,
descendant:/^\s/,
// selectors follow
tagName:/^\s*(\*|[\w\-]+)(\b|$)?/,
id:/^#([\w\-\*]+)(\b|$)/,
className:/^\.([\w\-\*]+)(\b|$)/,
pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)(\((.*?)\))?(\b|$|(?=\s|[:+~>]))/,
attrPresence:/^\[([\w]+)\]/,
attr:/\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
},
// for Selector.match and Element#match
assertions:{
tagName:function(element, matches){
return matches[1].toUpperCase()==element.tagName.toUpperCase();
},
className:function(element, matches){
return Element.hasClassName(element, matches[1]);
},
id:function(element, matches){
return element.id === matches[1];
},
attrPresence:function(element, matches){
return Element.hasAttribute(element, matches[1]);
},
attr:function(element, matches){
var nodeValue=Element.readAttribute(element, matches[1]);
return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
}
},
handlers:{
// UTILITY FUNCTIONS
// joins two collections
concat:function(a, b){
for (var i=0, node;node=b[i];i++)
a.push(node);
return a;
},
// marks an array of nodes for counting
mark:function(nodes){
var _true=Prototype.emptyFunction;
for (var i=0, node;node=nodes[i];i++)
node._countedByPrototype=_true;
return nodes;
},
unmark:function(nodes){
for (var i=0, node;node=nodes[i];i++)
node._countedByPrototype=undefined;
return nodes;
},
// mark each child node with its position (for nth calls)
// "ofType" flag indicates whether we're indexing for nth-of-type
// rather than nth-child
index:function(parentNode, reverse, ofType){
parentNode._countedByPrototype=Prototype.emptyFunction;
if(reverse){
for (var nodes=parentNode.childNodes, i=nodes.length-1, j=1;i >= 0;i--){
var node=nodes[i];
if(node.nodeType==1 && (!ofType || node._countedByPrototype)) node.nodeIndex=j++;
}
} else {
for (var i=0, j=1, nodes=parentNode.childNodes;node=nodes[i];i++)
if(node.nodeType==1 && (!ofType || node._countedByPrototype)) node.nodeIndex=j++;
}
},
// filters out duplicates and extends all nodes
unique:function(nodes){
if(nodes.length==0) return nodes;
var results=[], n;
for (var i=0, l=nodes.length;i < l;i++)
if(!(n=nodes[i])._countedByPrototype){
n._countedByPrototype=Prototype.emptyFunction;
results.push(Element.extend(n));
}
return Selector.handlers.unmark(results);
},
// COMBINATOR FUNCTIONS
descendant:function(nodes){
var h=Selector.handlers;
for (var i=0, results=[], node;node=nodes[i];i++)
h.concat(results, node.getElementsByTagName('*'));
return results;
},
child:function(nodes){
var h=Selector.handlers;
for (var i=0, results=[], node;node=nodes[i];i++){
for (var j=0, child;child=node.childNodes[j];j++)
if(child.nodeType==1 && child.tagName != '!') results.push(child);
}
return results;
},
adjacent:function(nodes){
for (var i=0, results=[], node;node=nodes[i];i++){
var next=this.nextElementSibling(node);
if(next) results.push(next);
}
return results;
},
laterSibling:function(nodes){
var h=Selector.handlers;
for (var i=0, results=[], node;node=nodes[i];i++)
h.concat(results, Element.nextSiblings(node));
return results;
},
nextElementSibling:function(node){
while (node=node.nextSibling)
	      if(node.nodeType==1) return node;
return null;
},
previousElementSibling:function(node){
while (node=node.previousSibling)
if(node.nodeType==1) return node;
return null;
},
// TOKEN FUNCTIONS
tagName:function(nodes, root, tagName, combinator){
var uTagName=tagName.toUpperCase();
var results=[], h=Selector.handlers;
if(nodes){
if(combinator){
// fastlane for ordinary descendant combinators
if(combinator=="descendant"){
for (var i=0, node;node=nodes[i];i++)
h.concat(results, node.getElementsByTagName(tagName));
return results;
} else nodes=this[combinator](nodes);
if(tagName=="*") return nodes;
}
for (var i=0, node;node=nodes[i];i++)
if(node.tagName.toUpperCase() === uTagName) results.push(node);
return results;
} else return root.getElementsByTagName(tagName);
},
id:function(nodes, root, id, combinator){
var targetNode=$(id), h=Selector.handlers;
if(!targetNode) return [];
if(!nodes && root==document) return [targetNode];
if(nodes){
if(combinator){
if(combinator=='child'){
for (var i=0, node;node=nodes[i];i++)
if(targetNode.parentNode==node) return [targetNode];
} else if(combinator=='descendant'){
for (var i=0, node;node=nodes[i];i++)
if(Element.descendantOf(targetNode, node)) return [targetNode];
} else if(combinator=='adjacent'){
for (var i=0, node;node=nodes[i];i++)
if(Selector.handlers.previousElementSibling(targetNode)==node)
return [targetNode];
} else nodes=h[combinator](nodes);
}
for (var i=0, node;node=nodes[i];i++)
if(node==targetNode) return [targetNode];
return [];
}
return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] :[];
},
className:function(nodes, root, className, combinator){
if(nodes && combinator) nodes=this[combinator](nodes);
return Selector.handlers.byClassName(nodes, root, className);
},
byClassName:function(nodes, root, className){
if(!nodes) nodes=Selector.handlers.descendant([root]);
var needle=' '+className+' ';
for (var i=0, results=[], node, nodeClassName;node=nodes[i];i++){
nodeClassName=node.className;
if(nodeClassName.length==0) continue;
if(nodeClassName==className || (' '+nodeClassName+' ').include(needle))
results.push(node);
}
return results;
},
attrPresence:function(nodes, root, attr, combinator){
if(!nodes) nodes=root.getElementsByTagName("*");
if(nodes && combinator) nodes=this[combinator](nodes);
var results=[];
for (var i=0, node;node=nodes[i];i++)
if(Element.hasAttribute(node, attr)) results.push(node);
return results;
},
attr:function(nodes, root, attr, value, operator, combinator){
if(!nodes) nodes=root.getElementsByTagName("*");
if(nodes && combinator) nodes=this[combinator](nodes);
var handler=Selector.operators[operator], results=[];
for (var i=0, node;node=nodes[i];i++){
var nodeValue=Element.readAttribute(node, attr);
if(nodeValue === null) continue;
if(handler(nodeValue, value)) results.push(node);
}
return results;
},
pseudo:function(nodes, name, value, root, combinator){
if(nodes && combinator) nodes=this[combinator](nodes);
if(!nodes) nodes=root.getElementsByTagName("*");
return Selector.pseudos[name](nodes, value, root);
}
},
pseudos:{
'first-child':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++){
if(Selector.handlers.previousElementSibling(node)) continue;
results.push(node);
}
return results;
},
'last-child':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++){
if(Selector.handlers.nextElementSibling(node)) continue;
results.push(node);
}
return results;
},
'only-child':function(nodes, value, root){
var h=Selector.handlers;
for (var i=0, results=[], node;node=nodes[i];i++)
if(!h.previousElementSibling(node) && !h.nextElementSibling(node))
results.push(node);
return results;
},
'nth-child':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, formula, root);
},
'nth-last-child':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, formula, root, true);
},
'nth-of-type':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, formula, root, false, true);
},
'nth-last-of-type':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, formula, root, true, true);
},
'first-of-type':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, "1", root, false, true);
},
'last-of-type':function(nodes, formula, root){
return Selector.pseudos.nth(nodes, "1", root, true, true);
},
'only-of-type':function(nodes, formula, root){
var p=Selector.pseudos;
return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
},
// handles the an+b logic
getIndices:function(a, b, total){
if(a==0) return b>0 ? [b] :[];
return $R(1, total).inject([], function(memo, i){
if(0==(i-b) % a && (i-b) / a >= 0) memo.push(i);
return memo;
});
},
// handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
nth:function(nodes, formula, root, reverse, ofType){
if(nodes.length==0) return [];
if(formula=='even') formula='2n+0';
if(formula=='odd')  formula='2n+1';
var h=Selector.handlers, results=[], indexed=[], m;
h.mark(nodes);
for (var i=0, node;node=nodes[i];i++){
if(!node.parentNode._countedByPrototype){
h.index(node.parentNode, reverse, ofType);
indexed.push(node.parentNode);
}
}
if(formula.match(/^\d+$/)){ // just a number
formula=Number(formula);
for (var i=0, node;node=nodes[i];i++)
if(node.nodeIndex==formula) results.push(node);
} else if(m=formula.match(/^(-?\d*)?n(([+-])(\d+))?/)){ // an+b
if(m[1]=="-") m[1]=-1;
var a=m[1] ? Number(m[1]) :1;
var b=m[2] ? Number(m[2]) :0;
var indices=Selector.pseudos.getIndices(a, b, nodes.length);
for (var i=0, node, l=indices.length;node=nodes[i];i++){
for (var j=0;j < l;j++)
if(node.nodeIndex==indices[j]) results.push(node);
}
}
h.unmark(nodes);
h.unmark(indexed);
return results;
},
'empty':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++){
// IE treats comments as element nodes
if(node.tagName=='!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
results.push(node);
}
return results;
},
'not':function(nodes, selector, root){
var h=Selector.handlers, selectorType, m;
var exclusions=new Selector(selector).findElements(root);
h.mark(exclusions);
for (var i=0, results=[], node;node=nodes[i];i++)
if(!node._countedByPrototype) results.push(node);
h.unmark(exclusions);
return results;
},
'enabled':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++)
if(!node.disabled) results.push(node);
return results;
},
'disabled':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++)
if(node.disabled) results.push(node);
return results;
},
'checked':function(nodes, value, root){
for (var i=0, results=[], node;node=nodes[i];i++)
if(node.checked) results.push(node);
return results;
}
},
operators:{
'=':function(nv, v){ return nv==v;},
'!=':function(nv, v){ return nv != v;},
'^=':function(nv, v){ return nv.startsWith(v);},
'$=':function(nv, v){ return nv.endsWith(v);},
'*=':function(nv, v){ return nv.include(v);},
'~=':function(nv, v){ return (' '+nv+' ').include(' '+v+' ');},
'|=':function(nv, v){ return ('-'+nv.toUpperCase()+'-').include('-'+v.toUpperCase()+'-');}
},
split:function(expression){
var expressions=[];
expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m){
expressions.push(m[1].strip());
});
return expressions;
},
matchElements:function(elements, expression){
var matches=$$(expression), h=Selector.handlers;
h.mark(matches);
for (var i=0, results=[], element;element=elements[i];i++)
if(element._countedByPrototype) results.push(element);
h.unmark(matches);
return results;
},
findElement:function(elements, expression, index){
if(Object.isNumber(expression)){
index=expression;expression=false;
}
return Selector.matchElements(elements, expression || '*')[index || 0];
},
findChildElements:function(element, expressions){
expressions=Selector.split(expressions.join(','));
var results=[], h=Selector.handlers;
for (var i=0, l=expressions.length, selector;i < l;i++){
selector=new Selector(expressions[i].strip());
h.concat(results, selector.findElements(element));
}
return (l>1) ? h.unique(results) :results;
}
});
if(Prototype.Browser.IE){
Object.extend(Selector.handlers, {
// IE returns comment nodes on getElementsByTagName("*").
// Filter them out.
concat:function(a, b){
for (var i=0, node;node=b[i];i++)
if(node.tagName !== "!") a.push(node);
return a;
},
// IE improperly serializes _countedByPrototype in (inner|outer)HTML.
unmark:function(nodes){
for (var i=0, node;node=nodes[i];i++)
node.removeAttribute('_countedByPrototype');
return nodes;
}
});
}
function $$(){
return Selector.findChildElements(document, $A(arguments));
}
var Form={
reset:function(form){
$(form).reset();
return form;
},
serializeElements:function(elements, options){
if(typeof options != 'object') options={ hash:!!options };
else if(Object.isUndefined(options.hash)) options.hash=true;
var key, value, submitted=false, submit=options.submit;
var data=elements.inject({ }, function(result, element){
if(!element.disabled && element.name){
key=element.name;value=$(element).getValue();
if(value != null && (element.type != 'submit' || (!submitted &&
submit !== false && (!submit || key==submit) && (submitted=true)))){
if(key in result){
// a key is already present;construct an array of values
if(!Object.isArray(result[key])) result[key]=[result[key]];
result[key].push(value);
}
else result[key]=value;
}
}
return result;
});
return options.hash ? data :Object.toQueryString(data);
}
};
Form.Methods={
serialize:function(form, options){
return Form.serializeElements(Form.getElements(form), options);
},
getElements:function(form){
return $A($(form).getElementsByTagName('*')).inject([],
function(elements, child){
if(Form.Element.Serializers[child.tagName.toLowerCase()])
elements.push(Element.extend(child));
return elements;
}
);
},
getInputs:function(form, typeName, name){
form=$(form);
var inputs=form.getElementsByTagName('input');
if(!typeName && !name) return $A(inputs).map(Element.extend);
for (var i=0, matchingInputs=[], length=inputs.length;i < length;i++){
var input=inputs[i];
if((typeName && input.type != typeName) || (name && input.name != name))
continue;
matchingInputs.push(Element.extend(input));
}
return matchingInputs;
},
disable:function(form){
form=$(form);
Form.getElements(form).invoke('disable');
return form;
},
enable:function(form){
form=$(form);
Form.getElements(form).invoke('enable');
return form;
},
findFirstElement:function(form){
var elements=$(form).getElements().findAll(function(element){
return 'hidden' != element.type && !element.disabled;
});
var firstByIndex=elements.findAll(function(element){
return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
}).sortBy(function(element){ return element.tabIndex }).first();
return firstByIndex ? firstByIndex :elements.find(function(element){
return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
});
},
focusFirstElement:function(form){
form=$(form);
form.findFirstElement().activate();
return form;
},
request:function(form, options){
form=$(form), options=Object.clone(options || { });
var params=options.parameters, action=form.readAttribute('action') || '';
if(action.blank()) action=window.location.href;
options.parameters=form.serialize(true);
if(params){
if(Object.isString(params)) params=params.toQueryParams();
Object.extend(options.parameters, params);
}
if(form.hasAttribute('method') && !options.method)
options.method=form.method;
return new Ajax.Request(action, options);
}
};
/*--------------------------------------------------------------------------*/
Form.Element={
focus:function(element){
$(element).focus();
return element;
},
select:function(element){
$(element).select();
return element;
}
};
Form.Element.Methods={
serialize:function(element){
element=$(element);
if(!element.disabled && element.name){
var value=element.getValue();
if(value != undefined){
var pair={ };
pair[element.name]=value;
return Object.toQueryString(pair);
}
}
return '';
},
getValue:function(element){
element=$(element);
var method=element.tagName.toLowerCase();
return Form.Element.Serializers[method](element);
},
setValue:function(element, value){
element=$(element);
var method=element.tagName.toLowerCase();
Form.Element.Serializers[method](element, value);
return element;
},
clear:function(element){
$(element).value='';
return element;
},
present:function(element){
return $(element).value != '';
},
activate:function(element){
element=$(element);
try {
element.focus();
if(element.select && (element.tagName.toLowerCase() != 'input' ||
!['button', 'reset', 'submit'].include(element.type)))
element.select();
} catch (e){ }
return element;
},
disable:function(element){
element=$(element);
element.blur();
element.disabled=true;
return element;
},
enable:function(element){
element=$(element);
element.disabled=false;
return element;
}
};
/*--------------------------------------------------------------------------*/
var Field=Form.Element;
var $F=Form.Element.Methods.getValue;
/*--------------------------------------------------------------------------*/
Form.Element.Serializers={
input:function(element, value){
switch (element.type.toLowerCase()){
case 'checkbox':
case 'radio':
return Form.Element.Serializers.inputSelector(element, value);
default:
return Form.Element.Serializers.textarea(element, value);
}
},
inputSelector:function(element, value){
if(Object.isUndefined(value)) return element.checked ? element.value :null;
else element.checked=!!value;
},
textarea:function(element, value){
if(Object.isUndefined(value)) return element.value;
else element.value=value;
},
select:function(element, index){
if(Object.isUndefined(index))
return this[element.type=='select-one' ?
'selectOne' :'selectMany'](element);
else {
var opt, value, single=!Object.isArray(index);
for (var i=0, length=element.length;i < length;i++){
opt=element.options[i];
value=this.optionValue(opt);
if(single){
if(value==index){
opt.selected=true;
return;
}
}
else opt.selected=index.include(value);
}
}
},
selectOne:function(element){
var index=element.selectedIndex;
return index >= 0 ? this.optionValue(element.options[index]) :null;
},
selectMany:function(element){
var values, length=element.length;
if(!length) return null;
for (var i=0, values=[];i < length;i++){
var opt=element.options[i];
if(opt.selected) values.push(this.optionValue(opt));
}
return values;
},
optionValue:function(opt){
// extend element because hasAttribute may not be native
return Element.extend(opt).hasAttribute('value') ? opt.value :opt.text;
}
};
/*--------------------------------------------------------------------------*/
Abstract.TimedObserver=Class.create(PeriodicalExecuter, {
initialize:function($super, element, frequency, callback){
$super(callback, frequency);
this.element  =$(element);
this.lastValue=this.getValue();
},
execute:function(){
var value=this.getValue();
if(Object.isString(this.lastValue) && Object.isString(value) ?
this.lastValue != value :String(this.lastValue) != String(value)){
this.callback(this.element, value);
this.lastValue=value;
}
}
});
Form.Element.Observer=Class.create(Abstract.TimedObserver, {
getValue:function(){
return Form.Element.getValue(this.element);
}
});
Form.Observer=Class.create(Abstract.TimedObserver, {
getValue:function(){
return Form.serialize(this.element);
}
});
/*--------------------------------------------------------------------------*/
Abstract.EventObserver=Class.create({
initialize:function(element, callback){
this.element =$(element);
this.callback=callback;
this.lastValue=this.getValue();
if(this.element.tagName.toLowerCase()=='form')
this.registerFormCallbacks();
else
this.registerCallback(this.element);
},
onElementEvent:function(){
var value=this.getValue();
if(this.lastValue != value){
this.callback(this.element, value);
this.lastValue=value;
}
},
registerFormCallbacks:function(){
Form.getElements(this.element).each(this.registerCallback, this);
},
registerCallback:function(element){
if(element.type){
switch (element.type.toLowerCase()){
case 'checkbox':
case 'radio':
Event.observe(element, 'click', this.onElementEvent.bind(this));
break;
default:
Event.observe(element, 'change', this.onElementEvent.bind(this));
break;
}
}
}
});
Form.Element.EventObserver=Class.create(Abstract.EventObserver, {
getValue:function(){
return Form.Element.getValue(this.element);
}
});
Form.EventObserver=Class.create(Abstract.EventObserver, {
getValue:function(){
return Form.serialize(this.element);
}
});
if(!window.Event) var Event={ };
Object.extend(Event, {
KEY_BACKSPACE:8,
KEY_TAB:9,
KEY_RETURN:13,
KEY_ESC:27,
KEY_LEFT:37,
KEY_UP:38,
KEY_RIGHT:39,
KEY_DOWN:40,
KEY_DELETE:46,
KEY_HOME:36,
KEY_END:35,
KEY_PAGEUP:33,
KEY_PAGEDOWN:34,
KEY_INSERT:45,
cache:{ },
relatedTarget:function(event){
var element;
switch(event.type){
case 'mouseover':element=event.fromElement;break;
case 'mouseout':element=event.toElement;  break;
default:return null;
}
return Element.extend(element);
}
});
Event.Methods=(function(){
var isButton;
if(Prototype.Browser.IE){
var buttonMap={ 0:1, 1:4, 2:2 };
isButton=function(event, code){
return event.button==buttonMap[code];
};
} else if(Prototype.Browser.WebKit){
isButton=function(event, code){
switch (code){
case 0:return event.which==1 && !event.metaKey;
case 1:return event.which==1 && event.metaKey;
default:return false;
}
};
} else {
isButton=function(event, code){
return event.which ? (event.which === code+1) :(event.button === code);
};
}
return {
isLeftClick:function(event){ return isButton(event, 0) },
isMiddleClick:function(event){ return isButton(event, 1) },
isRightClick:function(event){ return isButton(event, 2) },
element:function(event){
var node=Event.extend(event).target;
return Element.extend(node.nodeType==Node.TEXT_NODE ? node.parentNode :node);
},
findElement:function(event, expression){
var element=Event.element(event);
if(!expression) return element;
var elements=[element].concat(element.ancestors());
return Selector.findElement(elements, expression, 0);
},
pointer:function(event){
return {
x:event.pageX || (event.clientX +
(document.documentElement.scrollLeft || document.body.scrollLeft)),
y:event.pageY || (event.clientY +
(document.documentElement.scrollTop || document.body.scrollTop))
};
},
pointerX:function(event){ return Event.pointer(event).x },
pointerY:function(event){ return Event.pointer(event).y },
stop:function(event){
Event.extend(event);
event.preventDefault();
event.stopPropagation();
event.stopped=true;
}
};
})();
Event.extend=(function(){
var methods=Object.keys(Event.Methods).inject({ }, function(m, name){
m[name]=Event.Methods[name].methodize();
return m;
});
if(Prototype.Browser.IE){
Object.extend(methods, {
stopPropagation:function(){ this.cancelBubble=true },
preventDefault:function(){ this.returnValue=false },
inspect:function(){ return "[object Event]" }
});
return function(event){
if(!event) return false;
if(event._extendedByPrototype) return event;
event._extendedByPrototype=Prototype.emptyFunction;
var pointer=Event.pointer(event);
Object.extend(event, {
target:event.srcElement,
relatedTarget:Event.relatedTarget(event),
pageX:pointer.x,
pageY:pointer.y
});
return Object.extend(event, methods);
};
} else {
Event.prototype=Event.prototype || document.createEvent("HTMLEvents").__proto__;
Object.extend(Event.prototype, methods);
return Prototype.K;
}
})();
Object.extend(Event, (function(){
var cache=Event.cache;
function getEventID(element){
if(element._prototypeEventID) return element._prototypeEventID[0];
arguments.callee.id=arguments.callee.id || 1;
return element._prototypeEventID=[++arguments.callee.id];
}
function getDOMEventName(eventName){
if(eventName && eventName.include(':')) return "dataavailable";
return eventName;
}
function getCacheForID(id){
return cache[id]=cache[id] || { };
}
function getWrappersForEventName(id, eventName){
var c=getCacheForID(id);
return c[eventName]=c[eventName] || [];
}
function createWrapper(element, eventName, handler){
var id=getEventID(element);
var c=getWrappersForEventName(id, eventName);
if(c.pluck("handler").include(handler)) return false;
var wrapper=function(event){
if(!Event || !Event.extend ||
(event.eventName && event.eventName != eventName))
return false;
Event.extend(event);
handler.call(element, event);
};
wrapper.handler=handler;
c.push(wrapper);
return wrapper;
}
function findWrapper(id, eventName, handler){
var c=getWrappersForEventName(id, eventName);
return c.find(function(wrapper){ return wrapper.handler==handler });
}
function destroyWrapper(id, eventName, handler){
var c=getCacheForID(id);
if(!c[eventName]) return false;
c[eventName]=c[eventName].without(findWrapper(id, eventName, handler));
}
function destroyCache(){
for (var id in cache)
for (var eventName in cache[id])
cache[id][eventName]=null;
}
if(window.attachEvent){
window.attachEvent("onunload", destroyCache);
}
return {
observe:function(element, eventName, handler){
element=$(element);
var name=getDOMEventName(eventName);
var wrapper=createWrapper(element, eventName, handler);
if(!wrapper) return element;
if(element.addEventListener){
element.addEventListener(name, wrapper, false);
} else {
element.attachEvent("on"+name, wrapper);
}
return element;
},
stopObserving:function(element, eventName, handler){
element=$(element);
var id=getEventID(element), name=getDOMEventName(eventName);
if(!handler && eventName){
getWrappersForEventName(id, eventName).each(function(wrapper){
element.stopObserving(eventName, wrapper.handler);
});
return element;
} else if(!eventName){
Object.keys(getCacheForID(id)).each(function(eventName){
element.stopObserving(eventName);
});
return element;
}
var wrapper=findWrapper(id, eventName, handler);
if(!wrapper) return element;
if(element.removeEventListener){
element.removeEventListener(name, wrapper, false);
} else {
element.detachEvent("on"+name, wrapper);
}
destroyWrapper(id, eventName, handler);
return element;
},
fire:function(element, eventName, memo){
element=$(element);
if(element==document && document.createEvent && !element.dispatchEvent)
element=document.documentElement;
var event;
if(document.createEvent){
event=document.createEvent("HTMLEvents");
event.initEvent("dataavailable", true, true);
} else {
event=document.createEventObject();
event.eventType="ondataavailable";
}
event.eventName=eventName;
event.memo=memo || { };
if(document.createEvent){
element.dispatchEvent(event);
} else {
element.fireEvent(event.eventType, event);
}
return Event.extend(event);
}
};
})());
Object.extend(Event, Event.Methods);
Element.addMethods({
fire:Event.fire,
observe:Event.observe,
stopObserving:Event.stopObserving
});
Object.extend(document, {
fire:Element.Methods.fire.methodize(),
observe:Element.Methods.observe.methodize(),
stopObserving:Element.Methods.stopObserving.methodize(),
loaded:false
});
(function(){
/* Support for the DOMContentLoaded event is based on work by Dan Webb,
 Matthias Miller, Dean Edwards and John Resig. */
var timer;
function fireContentLoadedEvent(){
if(document.loaded) return;
if(timer) window.clearInterval(timer);
document.fire("dom:loaded");
document.loaded=true;
}
if(document.addEventListener){
if(Prototype.Browser.WebKit){
timer=window.setInterval(function(){
if(/loaded|complete/.test(document.readyState))
fireContentLoadedEvent();
}, 0);
Event.observe(window, "load", fireContentLoadedEvent);
} else {
document.addEventListener("DOMContentLoaded",
fireContentLoadedEvent, false);
}
} else {
document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
$("__onDOMContentLoaded").onreadystatechange=function(){
if(this.readyState=="complete"){
this.onreadystatechange=null;
fireContentLoadedEvent();
}
};
}
})();
/*------------------------------- DEPRECATED -------------------------------*/
Hash.toQueryString=Object.toQueryString;
var Toggle={ display:Element.toggle };
Element.Methods.childOf=Element.Methods.descendantOf;
var Insertion={
Before:function(element, content){
return Element.insert(element, {before:content});
},
Top:function(element, content){
return Element.insert(element, {top:content});
},
Bottom:function(element, content){
return Element.insert(element, {bottom:content});
},
After:function(element, content){
return Element.insert(element, {after:content});
}
};
var $continue=new Error('"throw $continue" is deprecated, use "return" instead');
// This should be moved to script.aculo.us;notice the deprecated methods
// further below, that map to the newer Element methods.
var Position={
// set to true if needed, warning:firefox performance problems
// NOT neeeded for page scrolling, only if draggable contained in
// scrollable elements
includeScrollOffsets:false,
// must be called before calling withinIncludingScrolloffset, every time the
// page is scrolled
prepare:function(){
this.deltaX= window.pageXOffset
|| document.documentElement.scrollLeft
|| document.body.scrollLeft
|| 0;
this.deltaY= window.pageYOffset
|| document.documentElement.scrollTop
|| document.body.scrollTop
|| 0;
},
// caches x/y coordinate pair to use with overlap
within:function(element, x, y){
if(this.includeScrollOffsets)
return this.withinIncludingScrolloffsets(element, x, y);
this.xcomp=x;
this.ycomp=y;
this.offset=Element.cumulativeOffset(element);
return (y >= this.offset[1] &&
y <  this.offset[1]+element.offsetHeight &&
x >= this.offset[0] &&
x <  this.offset[0]+element.offsetWidth);
},
withinIncludingScrolloffsets:function(element, x, y){
var offsetcache=Element.cumulativeScrollOffset(element);
this.xcomp=x+offsetcache[0]-this.deltaX;
this.ycomp=y+offsetcache[1]-this.deltaY;
this.offset=Element.cumulativeOffset(element);
return (this.ycomp >= this.offset[1] &&
this.ycomp <  this.offset[1]+element.offsetHeight &&
this.xcomp >= this.offset[0] &&
this.xcomp <  this.offset[0]+element.offsetWidth);
},
// within must be called directly before
overlap:function(mode, element){
if(!mode) return 0;
if(mode=='vertical')
return ((this.offset[1]+element.offsetHeight)-this.ycomp) /
element.offsetHeight;
if(mode=='horizontal')
return ((this.offset[0]+element.offsetWidth)-this.xcomp) /
element.offsetWidth;
},
// Deprecation layer -- use newer Element methods now (1.5.2).
cumulativeOffset:Element.Methods.cumulativeOffset,
positionedOffset:Element.Methods.positionedOffset,
absolutize:function(element){
Position.prepare();
return Element.absolutize(element);
},
relativize:function(element){
Position.prepare();
return Element.relativize(element);
},
realOffset:Element.Methods.cumulativeScrollOffset,
offsetParent:Element.Methods.getOffsetParent,
page:Element.Methods.viewportOffset,
clone:function(source, target, options){
options=options || { };
return Element.clonePosition(target, source, options);
}
};
/*--------------------------------------------------------------------------*/
if(!document.getElementsByClassName) document.getElementsByClassName=function(instanceMethods){
function iter(name){
return name.blank() ? null :"[contains(concat(' ', @class, ' '), ' "+name+" ')]";
}
instanceMethods.getElementsByClassName=Prototype.BrowserFeatures.XPath ?
function(element, className){
className=className.toString().strip();
var cond=/\s/.test(className) ? $w(className).map(iter).join('') :iter(className);
return cond ? document._getElementsByXPath('.//*'+cond, element) :[];
} :function(element, className){
className=className.toString().strip();
var elements=[], classNames=(/\s/.test(className) ? $w(className) :null);
if(!classNames && !className) return elements;
var nodes=$(element).getElementsByTagName('*');
className=' '+className+' ';
for (var i=0, child, cn;child=nodes[i];i++){
if(child.className && (cn=' '+child.className+' ') && (cn.include(className) ||
(classNames && classNames.all(function(name){
return !name.toString().blank() && cn.include(' '+name+' ');
}))))
elements.push(Element.extend(child));
}
return elements;
};
return function(className, parentElement){
return $(parentElement || document.body).getElementsByClassName(className);
};
}(Element.Methods);
/*--------------------------------------------------------------------------*/
Element.ClassNames=Class.create();
Element.ClassNames.prototype={
initialize:function(element){
this.element=$(element);
},
_each:function(iterator){
this.element.className.split(/\s+/).select(function(name){
return name.length>0;
})._each(iterator);
},
set:function(className){
this.element.className=className;
},
add:function(classNameToAdd){
if(this.include(classNameToAdd)) return;
this.set($A(this).concat(classNameToAdd).join(' '));
},
remove:function(classNameToRemove){
if(!this.include(classNameToRemove)) return;
this.set($A(this).without(classNameToRemove).join(' '));
},
toString:function(){
return $A(this).join(' ');
}
};
Object.extend(Element.ClassNames.prototype, Enumerable);
/*--------------------------------------------------------------------------*/
Element.addMethods();