var Prototype={
Version:'1.7',
Browser: (function(){
var ua=navigator.userAgent;
var isOpera=Object.prototype.toString.call(window.opera)=='[object Opera]';
return{
IE:             !!window.attachEvent && !isOpera,
Opera:          isOpera,
WebKit:         ua.indexOf('AppleWebKit/') > -1,
Gecko:          ua.indexOf('Gecko') > -1 && ua.indexOf('KHTML')===-1,
MobileSafari:   /Apple.*Mobile/.test(ua)
}})(),
BrowserFeatures:{
XPath: !!document.evaluate,
SelectorsAPI: !!document.querySelector,
ElementExtensions: (function(){
var constructor=window.Element || window.HTMLElement;
return !!(constructor && constructor.prototype);
})(),
SpecificElementExtensions: (function(){
if (typeof window.HTMLDivElement !=='undefined')
return true;
var div=document.createElement('div'),
form=document.createElement('form'),
isSupported=false;
if (div['__proto__'] && (div['__proto__'] !==form['__proto__'])){
isSupported=true;
}
div=form=null;
return isSupported;
})()
},
ScriptFragment:'<script[^>]*>([\\S\\s]*?)<\/script>',
JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,
emptyFunction: function(){},
K: function(x){return x}};
if (Prototype.Browser.MobileSafari)
Prototype.BrowserFeatures.SpecificElementExtensions=false;
var Abstract={};
var Try={
these: function(){
var returnValue;
for (var i=0, length=arguments.length; i < length; i++){
var lambda=arguments[i];
try{
returnValue=lambda();
break;
}catch (e){}}
return returnValue;
}};
var Class=(function(){
var IS_DONTENUM_BUGGY=(function(){
for (var p in{toString: 1}){
if (p==='toString') return false;
}
return true;
})();
function subclass(){};
function create(){
var parent=null, properties=$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){
subclass.prototype=parent.prototype;
klass.prototype=new subclass;
parent.subclasses.push(klass);
}
for (var i=0, length=properties.length; i < length; i++)
klass.addMethods(properties[i]);
if (!klass.prototype.initialize)
klass.prototype.initialize=Prototype.emptyFunction;
klass.prototype.constructor=klass;
return klass;
}
function addMethods(source){
var ancestor=this.superclass && this.superclass.prototype,
properties=Object.keys(source);
if (IS_DONTENUM_BUGGY){
if (source.toString !=Object.prototype.toString)
properties.push("toString");
if (source.valueOf !=Object.prototype.valueOf)
properties.push("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()[0]=="$super"){
var method=value;
value=(function(m){
return function(){return ancestor[m].apply(this, arguments);};
})(property).wrap(method);
value.valueOf=method.valueOf.bind(method);
value.toString=method.toString.bind(method);
}
this.prototype[property]=value;
}
return this;
}
return{
create: create,
Methods:{
addMethods: addMethods
}};
})();
(function(){
var _toString=Object.prototype.toString,
NULL_TYPE='Null',
UNDEFINED_TYPE='Undefined',
BOOLEAN_TYPE='Boolean',
NUMBER_TYPE='Number',
STRING_TYPE='String',
OBJECT_TYPE='Object',
FUNCTION_CLASS='[object Function]',
BOOLEAN_CLASS='[object Boolean]',
NUMBER_CLASS='[object Number]',
STRING_CLASS='[object String]',
ARRAY_CLASS='[object Array]',
DATE_CLASS='[object Date]',
NATIVE_JSON_STRINGIFY_SUPPORT=window.JSON &&
typeof JSON.stringify==='function' &&
JSON.stringify(0)==='0' &&
typeof JSON.stringify(Prototype.K)==='undefined';
function Type(o){
switch(o){
case null: return NULL_TYPE;
case (void 0): return UNDEFINED_TYPE;
}
var type=typeof o;
switch(type){
case 'boolean': return BOOLEAN_TYPE;
case 'number':  return NUMBER_TYPE;
case 'string':  return STRING_TYPE;
}
return OBJECT_TYPE;
}
function extend(destination, source){
for (var property in source)
destination[property]=source[property];
return destination;
}
function inspect(object){
try{
if (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;
}}
function toJSON(value){
return Str('',{'': value}, []);
}
function Str(key, holder, stack){
var value=holder[key],
type=typeof value;
if (Type(value)===OBJECT_TYPE && typeof value.toJSON==='function'){
value=value.toJSON(key);
}
var _class=_toString.call(value);
switch (_class){
case NUMBER_CLASS:
case BOOLEAN_CLASS:
case STRING_CLASS:
value=value.valueOf();
}
switch (value){
case null: return 'null';
case true: return 'true';
case false: return 'false';
}
type=typeof value;
switch (type){
case 'string':
return value.inspect(true);
case 'number':
return isFinite(value) ? String(value) :'null';
case 'object':
for (var i=0, length=stack.length; i < length; i++){
if (stack[i]===value){throw new TypeError();}}
stack.push(value);
var partial=[];
if (_class===ARRAY_CLASS){
for (var i=0, length=value.length; i < length; i++){
var str=Str(i, value, stack);
partial.push(typeof str==='undefined' ? 'null' : str);
}
partial='['+partial.join(',')+']';
}else{
var keys=Object.keys(value);
for (var i=0, length=keys.length; i < length; i++){
var key=keys[i], str=Str(key, value, stack);
if (typeof str !=="undefined"){
partial.push(key.inspect(true)+':'+str);
}}
partial='{'+partial.join(',')+'}';
}
stack.pop();
return partial;
}}
function stringify(object){
return JSON.stringify(object);
}
function toQueryString(object){
return $H(object).toQueryString();
}
function toHTML(object){
return object && object.toHTML ? object.toHTML() : String.interpret(object);
}
function keys(object){
if (Type(object) !==OBJECT_TYPE){throw new TypeError();}
var results=[];
for (var property in object){
if (object.hasOwnProperty(property)){
results.push(property);
}}
return results;
}
function values(object){
var results=[];
for (var property in object)
results.push(object[property]);
return results;
}
function clone(object){
return extend({}, object);
}
function isElement(object){
return !!(object && object.nodeType==1);
}
function isArray(object){
return _toString.call(object)===ARRAY_CLASS;
}
var hasNativeIsArray=(typeof Array.isArray=='function')
&& Array.isArray([]) && !Array.isArray({});
if (hasNativeIsArray){
isArray=Array.isArray;
}
function isHash(object){
return object instanceof Hash;
}
function isFunction(object){
return _toString.call(object)===FUNCTION_CLASS;
}
function isString(object){
return _toString.call(object)===STRING_CLASS;
}
function isNumber(object){
return _toString.call(object)===NUMBER_CLASS;
}
function isDate(object){
return _toString.call(object)===DATE_CLASS;
}
function isUndefined(object){
return typeof object==="undefined";
}
extend(Object,{
extend:        extend,
inspect:       inspect,
toJSON:        NATIVE_JSON_STRINGIFY_SUPPORT ? stringify : toJSON,
toQueryString: toQueryString,
toHTML:        toHTML,
keys:          Object.keys || keys,
values:        values,
clone:         clone,
isElement:     isElement,
isArray:       isArray,
isHash:        isHash,
isFunction:    isFunction,
isString:      isString,
isNumber:      isNumber,
isDate:        isDate,
isUndefined:   isUndefined
});
})();
Object.extend(Function.prototype, (function(){
var slice=Array.prototype.slice;
function update(array, args){
var arrayLength=array.length, length=args.length;
while (length--) array[arrayLength+length]=args[length];
return array;
}
function merge(array, args){
array=slice.call(array, 0);
return update(array, args);
}
function argumentNames(){
var names=this.toString().match(/^[\s\(]*function[^(]*\(([^)]*)\)/)[1]
.replace(/\/\/.*?[\r\n]|\/\*(?:.|[\r\n])*?\*\//g, '')
.replace(/\s+/g, '').split(',');
return names.length==1 && !names[0] ? [] : names;
}
function bind(context){
if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
var __method=this, args=slice.call(arguments, 1);
return function(){
var a=merge(args, arguments);
return __method.apply(context, a);
}}
function bindAsEventListener(context){
var __method=this, args=slice.call(arguments, 1);
return function(event){
var a=update([event || window.event], args);
return __method.apply(context, a);
}}
function curry(){
if (!arguments.length) return this;
var __method=this, args=slice.call(arguments, 0);
return function(){
var a=merge(args, arguments);
return __method.apply(this, a);
}}
function delay(timeout){
var __method=this, args=slice.call(arguments, 1);
timeout=timeout * 1000;
return window.setTimeout(function(){
return __method.apply(__method, args);
}, timeout);
}
function defer(){
var args=update([0.01], arguments);
return this.delay.apply(this, args);
}
function wrap(wrapper){
var __method=this;
return function(){
var a=update([__method.bind(this)], arguments);
return wrapper.apply(this, a);
}}
function methodize(){
if (this._methodized) return this._methodized;
var __method=this;
return this._methodized=function(){
var a=update([this], arguments);
return __method.apply(null, a);
};
}
return{
argumentNames:       argumentNames,
bind:                bind,
bindAsEventListener: bindAsEventListener,
curry:               curry,
delay:               delay,
defer:               defer,
wrap:                wrap,
methodize:           methodize
}})());
(function(proto){
function toISOString(){
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';
}
function toJSON(){
return this.toISOString();
}
if (!proto.toISOString) proto.toISOString=toISOString;
if (!proto.toJSON) proto.toJSON=toJSON;
})(Date.prototype);
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();
this.currentlyExecuting=false;
}catch(e){
this.currentlyExecuting=false;
throw e;
}}}});
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, (function(){
var NATIVE_JSON_PARSE_SUPPORT=window.JSON &&
typeof JSON.parse==='function' &&
JSON.parse('{"test": true}').test;
function prepareReplacement(replacement){
if (Object.isFunction(replacement)) return replacement;
var template=new Template(replacement);
return function(match){return template.evaluate(match)};
}
function gsub(pattern, replacement){
var result='', source=this, match;
replacement=prepareReplacement(replacement);
if (Object.isString(pattern))
pattern=RegExp.escape(pattern);
if (!(pattern.length || pattern.source)){
replacement=replacement('');
return replacement+source.split('').join(replacement)+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;
}
function sub(pattern, replacement, count){
replacement=prepareReplacement(replacement);
count=Object.isUndefined(count) ? 1 : count;
return this.gsub(pattern, function(match){
if (--count < 0) return match[0];
return replacement(match);
});
}
function scan(pattern, iterator){
this.gsub(pattern, iterator);
return String(this);
}
function truncate(length, truncation){
length=length || 30;
truncation=Object.isUndefined(truncation) ? '...' : truncation;
return this.length > length ?
this.slice(0, length - truncation.length)+truncation : String(this);
}
function strip(){
return this.replace(/^\s+/, '').replace(/\s+$/, '');
}
function stripTags(){
return this.replace(/<\w+(\s+("[^"]*"|'[^']*'|[^>])+)?>|<\/\w+>/gi, '');
}
function stripScripts(){
return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
}
function extractScripts(){
var matchAll=new RegExp(Prototype.ScriptFragment, 'img'),
matchOne=new RegExp(Prototype.ScriptFragment, 'im');
return (this.match(matchAll) || []).map(function(scriptTag){
return (scriptTag.match(matchOne) || ['', ''])[1];
});
}
function evalScripts(){
return this.extractScripts().map(function(script){return eval(script)});
}
function escapeHTML(){
return this.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
}
function unescapeHTML(){
return this.stripTags().replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&amp;/g,'&');
}
function toQueryParams(separator){
var match=this.strip().match(/([^?#]*)(#.*)?$/);
if (!match) return{};
return match[1].split(separator || '&').inject({}, function(hash, pair){
if ((pair=pair.split('='))[0]){
var key=decodeURIComponent(pair.shift()),
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;
});
}
function toArray(){
return this.split('');
}
function succ(){
return this.slice(0, this.length - 1)+
String.fromCharCode(this.charCodeAt(this.length - 1)+1);
}
function times(count){
return count < 1 ? '' : new Array(count+1).join(this);
}
function camelize(){
return this.replace(/-+(.)?/g, function(match, chr){
return chr ? chr.toUpperCase() :'';
});
}
function capitalize(){
return this.charAt(0).toUpperCase()+this.substring(1).toLowerCase();
}
function underscore(){
return this.replace(/::/g, '/')
.replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
.replace(/([a-z\d])([A-Z])/g, '$1_$2')
.replace(/-/g, '_')
.toLowerCase();
}
function dasherize(){
return this.replace(/_/g, '-');
}
function inspect(useDoubleQuotes){
var escapedString=this.replace(/[\x00-\x1f\\]/g, function(character){
if (character in String.specialChar){
return String.specialChar[character];
}
return '\\u00'+character.charCodeAt().toPaddedString(2, 16);
});
if (useDoubleQuotes) return '"'+escapedString.replace(/"/g, '\\"')+'"';
return "'"+escapedString.replace(/'/g, '\\\'')+"'";
}
function unfilterJSON(filter){
return this.replace(filter || Prototype.JSONFilter, '$1');
}
function isJSON(){
var str=this;
if (str.blank()) return false;
str=str.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@');
str=str.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']');
str=str.replace(/(?:^|:|,)(?:\s*\[)+/g, '');
return (/^[\],:{}\s]*$/).test(str);
}
function evalJSON(sanitize){
var json=this.unfilterJSON(),
cx=/[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g;
if (cx.test(json)){
json=json.replace(cx, function (a){
return '\\u'+('0000'+a.charCodeAt(0).toString(16)).slice(-4);
});
}
try{
if (!sanitize || json.isJSON()) return eval('('+json+')');
}catch (e){}
throw new SyntaxError('Badly formed JSON string:'+this.inspect());
}
function parseJSON(){
var json=this.unfilterJSON();
return JSON.parse(json);
}
function include(pattern){
return this.indexOf(pattern) > -1;
}
function startsWith(pattern){
return this.lastIndexOf(pattern, 0)===0;
}
function endsWith(pattern){
var d=this.length - pattern.length;
return d >=0 && this.indexOf(pattern, d)===d;
}
function empty(){
return this=='';
}
function blank(){
return /^\s*$/.test(this);
}
function interpolate(object, pattern){
return new Template(this, pattern).evaluate(object);
}
return{
gsub:           gsub,
sub:            sub,
scan:           scan,
truncate:       truncate,
strip:          String.prototype.trim || strip,
stripTags:      stripTags,
stripScripts:   stripScripts,
extractScripts: extractScripts,
evalScripts:    evalScripts,
escapeHTML:     escapeHTML,
unescapeHTML:   unescapeHTML,
toQueryParams:  toQueryParams,
parseQuery:     toQueryParams,
toArray:        toArray,
succ:           succ,
times:          times,
camelize:       camelize,
capitalize:     capitalize,
underscore:     underscore,
dasherize:      dasherize,
inspect:        inspect,
unfilterJSON:   unfilterJSON,
isJSON:         isJSON,
evalJSON:       NATIVE_JSON_PARSE_SUPPORT ? parseJSON : evalJSON,
include:        include,
startsWith:     startsWith,
endsWith:       endsWith,
empty:          empty,
blank:          blank,
interpolate:    interpolate
};
})());
var Template=Class.create({
initialize: function(template, pattern){
this.template=template.toString();
this.pattern=pattern || Template.Pattern;
},
evaluate: function(object){
if (object && Object.isFunction(object.toTemplateReplacements))
object=object.toTemplateReplacements();
return this.template.gsub(this.pattern, function(match){
if (object==null) return (match[1]+'');
var before=match[1] || '';
if (before=='\\') return match[2];
var ctx=object, expr=match[3],
pattern=/^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
match=pattern.exec(expr);
if (match==null) return before;
while (match !=null){
var comp=match[1].startsWith('[') ? match[2].replace(/\\\\]/g, ']') : 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 $break={};
var Enumerable=(function(){
function each(iterator, context){
var index=0;
try{
this._each(function(value){
iterator.call(context, value, index++);
});
}catch (e){
if (e !=$break) throw e;
}
return this;
}
function eachSlice(number, iterator, context){
var index=-number, slices=[], array=this.toArray();
if (number < 1) return array;
while ((index+=number) < array.length)
slices.push(array.slice(index, index+number));
return slices.collect(iterator, context);
}
function all(iterator, context){
iterator=iterator || Prototype.K;
var result=true;
this.each(function(value, index){
result=result && !!iterator.call(context, value, index);
if (!result) throw $break;
});
return result;
}
function any(iterator, context){
iterator=iterator || Prototype.K;
var result=false;
this.each(function(value, index){
if (result=!!iterator.call(context, value, index))
throw $break;
});
return result;
}
function collect(iterator, context){
iterator=iterator || Prototype.K;
var results=[];
this.each(function(value, index){
results.push(iterator.call(context, value, index));
});
return results;
}
function detect(iterator, context){
var result;
this.each(function(value, index){
if (iterator.call(context, value, index)){
result=value;
throw $break;
}});
return result;
}
function findAll(iterator, context){
var results=[];
this.each(function(value, index){
if (iterator.call(context, value, index))
results.push(value);
});
return results;
}
function grep(filter, iterator, context){
iterator=iterator || Prototype.K;
var results=[];
if (Object.isString(filter))
filter=new RegExp(RegExp.escape(filter));
this.each(function(value, index){
if (filter.match(value))
results.push(iterator.call(context, value, index));
});
return results;
}
function include(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 $break;
}});
return found;
}
function inGroupsOf(number, fillWith){
fillWith=Object.isUndefined(fillWith) ? null : fillWith;
return this.eachSlice(number, function(slice){
while(slice.length < number) slice.push(fillWith);
return slice;
});
}
function inject(memo, iterator, context){
this.each(function(value, index){
memo=iterator.call(context, memo, value, index);
});
return memo;
}
function invoke(method){
var args=$A(arguments).slice(1);
return this.map(function(value){
return value[method].apply(value, args);
});
}
function max(iterator, context){
iterator=iterator || Prototype.K;
var result;
this.each(function(value, index){
value=iterator.call(context, value, index);
if (result==null || value >=result)
result=value;
});
return result;
}
function min(iterator, context){
iterator=iterator || Prototype.K;
var result;
this.each(function(value, index){
value=iterator.call(context, value, index);
if (result==null || value < result)
result=value;
});
return result;
}
function partition(iterator, context){
iterator=iterator || Prototype.K;
var trues=[], falses=[];
this.each(function(value, index){
(iterator.call(context, value, index) ?
trues : falses).push(value);
});
return [trues, falses];
}
function pluck(property){
var results=[];
this.each(function(value){
results.push(value[property]);
});
return results;
}
function reject(iterator, context){
var results=[];
this.each(function(value, index){
if (!iterator.call(context, value, index))
results.push(value);
});
return results;
}
function sortBy(iterator, context){
return this.map(function(value, index){
return{
value: value,
criteria: iterator.call(context, value, index)
};
}).sort(function(left, right){
var a=left.criteria, b=right.criteria;
return a < b ? -1 : a > b ? 1 : 0;
}).pluck('value');
}
function toArray(){
return this.map();
}
function zip(){
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));
});
}
function size(){
return this.toArray().length;
}
function inspect(){
return '#<Enumerable:'+this.toArray().inspect()+'>';
}
return{
each:       each,
eachSlice:  eachSlice,
all:        all,
every:      all,
any:        any,
some:       any,
collect:    collect,
map:        collect,
detect:     detect,
findAll:    findAll,
select:     findAll,
filter:     findAll,
grep:       grep,
include:    include,
member:     include,
inGroupsOf: inGroupsOf,
inject:     inject,
invoke:     invoke,
max:        max,
min:        min,
partition:  partition,
pluck:      pluck,
reject:     reject,
sortBy:     sortBy,
toArray:    toArray,
entries:    toArray,
zip:        zip,
size:       size,
inspect:    inspect,
find:       detect
};
})();
function $A(iterable){
if (!iterable) return [];
if ('toArray' in Object(iterable)) return iterable.toArray();
var length=iterable.length || 0, results=new Array(length);
while (length--) results[length]=iterable[length];
return results;
}
function $w(string){
if (!Object.isString(string)) return [];
string=string.strip();
return string ? string.split(/\s+/) : [];
}
Array.from=$A;
(function(){
var arrayProto=Array.prototype,
slice=arrayProto.slice,
_each=arrayProto.forEach; 
function each(iterator, context){
for (var i=0, length=this.length >>> 0; i < length; i++){
if (i in this) iterator.call(context, this[i], i, this);
}}
if (!_each) _each=each;
function clear(){
this.length=0;
return this;
}
function first(){
return this[0];
}
function last(){
return this[this.length - 1];
}
function compact(){
return this.select(function(value){
return value !=null;
});
}
function flatten(){
return this.inject([], function(array, value){
if (Object.isArray(value))
return array.concat(value.flatten());
array.push(value);
return array;
});
}
function without(){
var values=slice.call(arguments, 0);
return this.select(function(value){
return !values.include(value);
});
}
function reverse(inline){
return (inline===false ? this.toArray() : this)._reverse();
}
function uniq(sorted){
return this.inject([], function(array, value, index){
if (0==index || (sorted ? array.last() !=value : !array.include(value)))
array.push(value);
return array;
});
}
function intersect(array){
return this.uniq().findAll(function(item){
return array.detect(function(value){return item===value});
});
}
function clone(){
return slice.call(this, 0);
}
function size(){
return this.length;
}
function inspect(){
return '['+this.map(Object.inspect).join(', ')+']';
}
function indexOf(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;
}
function lastIndexOf(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;
}
function concat(){
var array=slice.call(this, 0), item;
for (var i=0, length=arguments.length; i < length; i++){
item=arguments[i];
if (Object.isArray(item) && !('callee' in item)){
for (var j=0, arrayLength=item.length; j < arrayLength; j++)
array.push(item[j]);
}else{
array.push(item);
}}
return array;
}
Object.extend(arrayProto, Enumerable);
if (!arrayProto._reverse)
arrayProto._reverse=arrayProto.reverse;
Object.extend(arrayProto,{
_each:     _each,
clear:     clear,
first:     first,
last:      last,
compact:   compact,
flatten:   flatten,
without:   without,
reverse:   reverse,
uniq:      uniq,
intersect: intersect,
clone:     clone,
toArray:   clone,
size:      size,
inspect:   inspect
});
var CONCAT_ARGUMENTS_BUGGY=(function(){
return [].concat(arguments)[0][0] !==1;
})(1,2)
if (CONCAT_ARGUMENTS_BUGGY) arrayProto.concat=concat;
if (!arrayProto.indexOf) arrayProto.indexOf=indexOf;
if (!arrayProto.lastIndexOf) arrayProto.lastIndexOf=lastIndexOf;
})();
function $H(object){
return new Hash(object);
};
var Hash=Class.create(Enumerable, (function(){
function initialize(object){
this._object=Object.isHash(object) ? object.toObject() : Object.clone(object);
}
function _each(iterator){
for (var key in this._object){
var value=this._object[key], pair=[key, value];
pair.key=key;
pair.value=value;
iterator(pair);
}}
function set(key, value){
return this._object[key]=value;
}
function get(key){
if (this._object[key] !==Object.prototype[key])
return this._object[key];
}
function unset(key){
var value=this._object[key];
delete this._object[key];
return value;
}
function toObject(){
return Object.clone(this._object);
}
function keys(){
return this.pluck('key');
}
function values(){
return this.pluck('value');
}
function index(value){
var match=this.detect(function(pair){
return pair.value===value;
});
return match && match.key;
}
function merge(object){
return this.clone().update(object);
}
function update(object){
return new Hash(object).inject(this, function(result, pair){
result.set(pair.key, pair.value);
return result;
});
}
function toQueryPair(key, value){
if (Object.isUndefined(value)) return key;
return key+'='+encodeURIComponent(String.interpret(value));
}
function toQueryString(){
return this.inject([], function(results, pair){
var key=encodeURIComponent(pair.key), values=pair.value;
if (values && typeof values=='object'){
if (Object.isArray(values)){
var queryValues=[];
for (var i=0, len=values.length, value; i < len; i++){
value=values[i];
queryValues.push(toQueryPair(key, value));
}
return results.concat(queryValues);
}}else results.push(toQueryPair(key, values));
return results;
}).join('&');
}
function inspect(){
return '#<Hash:{'+this.map(function(pair){
return pair.map(Object.inspect).join(':');
}).join(', ')+'}>';
}
function clone(){
return new Hash(this);
}
return{
initialize:             initialize,
_each:                  _each,
set:                    set,
get:                    get,
unset:                  unset,
toObject:               toObject,
toTemplateReplacements: toObject,
keys:                   keys,
values:                 values,
index:                  index,
merge:                  merge,
update:                 update,
toQueryString:          toQueryString,
inspect:                inspect,
toJSON:                 toObject,
clone:                  clone
};
})());
Hash.from=$H;
Object.extend(Number.prototype, (function(){
function toColorPart(){
return this.toPaddedString(2, 16);
}
function succ(){
return this+1;
}
function times(iterator, context){
$R(0, this, true).each(iterator, context);
return this;
}
function toPaddedString(length, radix){
var string=this.toString(radix || 10);
return '0'.times(length - string.length)+string;
}
function abs(){
return Math.abs(this);
}
function round(){
return Math.round(this);
}
function ceil(){
return Math.ceil(this);
}
function floor(){
return Math.floor(this);
}
return{
toColorPart:    toColorPart,
succ:           succ,
times:          times,
toPaddedString: toPaddedString,
abs:            abs,
round:          round,
ceil:           ceil,
floor:          floor
};
})());
function $R(start, end, exclusive){
return new ObjectRange(start, end, exclusive);
}
var ObjectRange=Class.create(Enumerable, (function(){
function initialize(start, end, exclusive){
this.start=start;
this.end=end;
this.exclusive=exclusive;
}
function _each(iterator){
var value=this.start;
while (this.include(value)){
iterator(value);
value=value.succ();
}}
function include(value){
if (value < this.start)
return false;
if (this.exclusive)
return value < this.end;
return value <=this.end;
}
return{
initialize: initialize,
_each:      _each,
include:    include
};
})());
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.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.isString(this.options.parameters) ?
this.options.parameters :
Object.toQueryString(this.options.parameters);
if (!['get', 'post'].include(this.method)){
params+=(params ? '&' :'')+"_method="+this.method;
this.method='post';
}
if (params && this.method==='get'){
this.url+=(this.url.include('?') ? '&' :'?')+params;
}
this.parameters=params.toQueryParams();
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);
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 :'');
if (this.transport.overrideMimeType &&
(navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
headers['Connection']='close';
}
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
$H(extras).each(function(pair){headers[pair.key]=pair.value});
}
for (var name in headers)
this.transport.setRequestHeader(name, headers[name]);
},
success: function(){
var status=this.getStatus();
return !status || (status >=200 && status < 300) || status==304;
},
getStatus: function(){
try{
if (this.transport.status===1223) return 204;
return this.transport.status || 0;
}catch (e){return 0}},
respondToReadyState: function(readyState){
var state=Ajax.Request.Events[readyState], response=new Ajax.Response(this);
if (state=='Complete'){
try{
this._complete=true;
(this.options['on'+response.status]
|| this.options['on'+(this.success() ? 'Success' :'Failure')]
|| Prototype.emptyFunction)(response, response.headerJSON);
}catch (e){
this.dispatchException(e);
}
var contentType=response.getHeader('Content-type');
if (this.options.evalJS=='force'
|| (this.options.evalJS && this.isSameOrigin() && contentType
&& contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/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'){
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 (!Node) var Node={};
if (!Node.ELEMENT_NODE){
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(global){
function shouldUseCache(tagName, attributes){
if (tagName==='select') return false;
if ('type' in attributes) return false;
return true;
}
var HAS_EXTENDED_CREATE_ELEMENT_SYNTAX=(function(){
try{
var el=document.createElement('<input name="x">');
return el.tagName.toLowerCase()==='input' && el.name==='x';
}
catch(err){
return false;
}})();
var element=global.Element;
global.Element=function(tagName, attributes){
attributes=attributes ||{};
tagName=tagName.toLowerCase();
var cache=Element.cache;
if (HAS_EXTENDED_CREATE_ELEMENT_SYNTAX && 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));
var node=shouldUseCache(tagName, attributes) ?
cache[tagName].cloneNode(false) : document.createElement(tagName);
return Element.writeAttribute(node, attributes);
};
Object.extend(global.Element, element ||{});
if (element) global.Element.prototype=element.prototype;
})(this);
Element.idCounter=1;
Element.cache={};
Element._purgeElement=function(element){
var uid=element._prototypeUID;
if (uid){
Element.stopObserving(element);
element._prototypeUID=void 0;
delete Element.Storage[uid];
}}
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=$(element);
element.style.display='none';
return element;
},
show: function(element){
element=$(element);
element.style.display='';
return element;
},
remove: function(element){
element=$(element);
element.parentNode.removeChild(element);
return element;
},
update: (function(){
var SELECT_ELEMENT_INNERHTML_BUGGY=(function(){
var el=document.createElement("select"),
isBuggy=true;
el.innerHTML="<option value=\"test\">test</option>";
if (el.options && el.options[0]){
isBuggy=el.options[0].nodeName.toUpperCase() !=="OPTION";
}
el=null;
return isBuggy;
})();
var TABLE_ELEMENT_INNERHTML_BUGGY=(function(){
try{
var el=document.createElement("table");
if (el && el.tBodies){
el.innerHTML="<tbody><tr><td>test</td></tr></tbody>";
var isBuggy=typeof el.tBodies[0]=="undefined";
el=null;
return isBuggy;
}}catch (e){
return true;
}})();
var LINK_ELEMENT_INNERHTML_BUGGY=(function(){
try{
var el=document.createElement('div');
el.innerHTML="<link>";
var isBuggy=(el.childNodes.length===0);
el=null;
return isBuggy;
}catch(e){
return true;
}})();
var ANY_INNERHTML_BUGGY=SELECT_ELEMENT_INNERHTML_BUGGY ||
TABLE_ELEMENT_INNERHTML_BUGGY || LINK_ELEMENT_INNERHTML_BUGGY;
var SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING=(function (){
var s=document.createElement("script"),
isBuggy=false;
try{
s.appendChild(document.createTextNode(""));
isBuggy=!s.firstChild ||
s.firstChild && s.firstChild.nodeType !==3;
}catch (e){
isBuggy=true;
}
s=null;
return isBuggy;
})();
function update(element, content){
element=$(element);
var purgeElement=Element._purgeElement;
var descendants=element.getElementsByTagName('*'),
i=descendants.length;
while (i--) purgeElement(descendants[i]);
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==='SCRIPT' && SCRIPT_ELEMENT_REJECTS_TEXTNODE_APPENDING){
element.text=content;
return element;
}
if (ANY_INNERHTML_BUGGY){
if (tagName in Element._insertionTranslations.tags){
while (element.firstChild){
element.removeChild(element.firstChild);
}
Element._getContentFromAnonymousElement(tagName, content.stripScripts())
.each(function(node){
element.appendChild(node)
});
}else if (LINK_ELEMENT_INNERHTML_BUGGY && Object.isString(content) && content.indexOf('<link') > -1){
while (element.firstChild){
element.removeChild(element.firstChild);
}
var nodes=Element._getContentFromAnonymousElement(tagName, content.stripScripts(), true);
nodes.each(function(node){element.appendChild(node)});
}
else{
element.innerHTML=content.stripScripts();
}}
else{
element.innerHTML=content.stripScripts();
}
content.evalScripts.bind(content).defer();
return element;
}
return update;
})(),
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();
$H({'id':'id', 'className':'class'}).each(function(pair){
var property=pair.first(),
attribute=pair.last(),
value=(element[property] || '').toString();
if (value) result+=' '+attribute+'='+value.inspect(true);
});
return result+'>';
},
recursivelyCollect: function(element, property, maximumLength){
element=$(element);
maximumLength=maximumLength || -1;
var elements=[];
while (element=element[property]){
if (element.nodeType==1)
elements.push(Element.extend(element));
if (elements.length==maximumLength)
break;
}
return elements;
},
ancestors: function(element){
return Element.recursivelyCollect(element, 'parentNode');
},
descendants: function(element){
return Element.select(element, "*");
},
firstDescendant: function(element){
element=$(element).firstChild;
while (element && element.nodeType !=1) element=element.nextSibling;
return $(element);
},
immediateDescendants: function(element){
var results=[], child=$(element).firstChild;
while (child){
if (child.nodeType===1){
results.push(Element.extend(child));
}
child=child.nextSibling;
}
return results;
},
previousSiblings: function(element, maximumLength){
return Element.recursivelyCollect(element, 'previousSibling');
},
nextSiblings: function(element){
return Element.recursivelyCollect(element, 'nextSibling');
},
siblings: function(element){
element=$(element);
return Element.previousSiblings(element).reverse()
.concat(Element.nextSiblings(element));
},
match: function(element, selector){
element=$(element);
if (Object.isString(selector))
return Prototype.Selector.match(element, selector);
return selector.match(element);
},
up: function(element, expression, index){
element=$(element);
if (arguments.length==1) return $(element.parentNode);
var ancestors=Element.ancestors(element);
return Object.isNumber(expression) ? ancestors[expression] :
Prototype.Selector.find(ancestors, expression, index);
},
down: function(element, expression, index){
element=$(element);
if (arguments.length==1) return Element.firstDescendant(element);
return Object.isNumber(expression) ? Element.descendants(element)[expression] :
Element.select(element, expression)[index || 0];
},
previous: function(element, expression, index){
element=$(element);
if (Object.isNumber(expression)) index=expression, expression=false;
if (!Object.isNumber(index)) index=0;
if (expression){
return Prototype.Selector.find(element.previousSiblings(), expression, index);
}else{
return element.recursivelyCollect("previousSibling", index+1)[index];
}},
next: function(element, expression, index){
element=$(element);
if (Object.isNumber(expression)) index=expression, expression=false;
if (!Object.isNumber(index)) index=0;
if (expression){
return Prototype.Selector.find(element.nextSiblings(), expression, index);
}else{
var maximumLength=Object.isNumber(index) ? index+1 : 1;
return element.recursivelyCollect("nextSibling", index+1)[index];
}},
select: function(element){
element=$(element);
var expressions=Array.prototype.slice.call(arguments, 1).join(', ');
return Prototype.Selector.select(expressions, element);
},
adjacent: function(element){
element=$(element);
var expressions=Array.prototype.slice.call(arguments, 1).join(', ');
return Prototype.Selector.select(expressions, element.parentNode).without(element);
},
identify: function(element){
element=$(element);
var id=Element.readAttribute(element, 'id');
if (id) return id;
do{id='anonymous_element_'+Element.idCounter++}while ($(id));
Element.writeAttribute(element, '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(element).height;
},
getWidth: function(element){
return Element.getDimensions(element).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=$(element))) return;
if (!Element.hasClassName(element, className))
element.className+=(element.className ? ' ' :'')+className;
return element;
},
removeClassName: function(element, className){
if (!(element=$(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(element, className) ?
'removeClassName' :'addClassName'](element, className);
},
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=$(ancestor);
if (element.compareDocumentPosition)
return (element.compareDocumentPosition(ancestor) & 8)===8;
if (ancestor.contains)
return ancestor.contains(element) && ancestor !==element;
while (element=element.parentNode)
if (element==ancestor) return true;
return false;
},
scrollTo: function(element){
element=$(element);
var pos=Element.cumulativeOffset(element);
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 || value=='auto'){
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=$(element);
element.style.opacity=(value==1 || value==='') ? '' :
(value < 0.00001) ? 0 : value;
return element;
},
makePositioned: function(element){
element=$(element);
var pos=Element.getStyle(element, 'position');
if (pos=='static' || !pos){
element._madePositioned=true;
element.style.position='relative';
if (Prototype.Browser.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=$(element);
if (!element._overflow) return element;
element.style.overflow=element._overflow=='auto' ? '' : element._overflow;
element._overflow=null;
return element;
},
clonePosition: function(element, source){
var options=Object.extend({
setLeft:    true,
setTop:     true,
setWidth:   true,
setHeight:  true,
offsetTop:  0,
offsetLeft: 0
}, arguments[2] ||{});
source=$(source);
var p=Element.viewportOffset(source), delta=[0, 0], parent=null;
element=$(element);
if (Element.getStyle(element, 'position')=='absolute'){
parent=Element.getOffsetParent(element);
delta=Element.viewportOffset(parent);
}
if (parent==document.body){
delta[0] -=document.body.offsetLeft;
delta[1] -=document.body.offsetTop;
}
if (options.setLeft)   element.style.left=(p[0] - delta[0]+options.offsetLeft)+'px';
if (options.setTop)    element.style.top=(p[1] - delta[1]+options.offsetTop)+'px';
if (options.setWidth)  element.style.width=source.offsetWidth+'px';
if (options.setHeight) element.style.height=source.offsetHeight+'px';
return element;
}};
Object.extend(Element.Methods,{
getElementsBySelector: Element.Methods.select,
childElements: Element.Methods.immediateDescendants
});
Element._attributeTranslations={
write:{
names:{
className:'class',
htmlFor:   'for'
},
values:{}}};
if (Prototype.Browser.Opera){
Element.Methods.getStyle=Element.Methods.getStyle.wrap(
function(proceed, element, style){
switch (style){
case 'height': case 'width':
if (!Element.visible(element)) return null;
var dim=parseInt(proceed(element, style), 10);
if (dim !==element['offset'+style.capitalize()])
return dim+'px';
var properties;
if (style==='height'){
properties=['border-top-width', 'padding-top',
'padding-bottom', 'border-bottom-width'];
}
else{
properties=['border-left-width', 'padding-left',
'padding-right', 'border-right-width'];
}
return properties.inject(dim, function(memo, property){
var val=proceed(element, property);
return val===null ? memo : memo - parseInt(val, 10);
})+'px';
default: return proceed(element, style);
}}
);
Element.Methods.readAttribute=Element.Methods.readAttribute.wrap(
function(proceed, element, attribute){
if (attribute==='title') return element.title;
return proceed(element, attribute);
}
);
}
else if (Prototype.Browser.IE){
Element.Methods.getStyle=function(element, style){
element=$(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=(function(){
var classProp='className',
forProp='for',
el=document.createElement('div');
el.setAttribute(classProp, 'x');
if (el.className !=='x'){
el.setAttribute('class', 'x');
if (el.className==='x'){
classProp='class';
}}
el=null;
el=document.createElement('label');
el.setAttribute(forProp, 'x');
if (el.htmlFor !=='x'){
el.setAttribute('htmlFor', 'x');
if (el.htmlFor==='x'){
forProp='htmlFor';
}}
el=null;
return{
read:{
names:{
'class':      classProp,
'className':  classProp,
'for':        forProp,
'htmlFor':    forProp
},
values:{
_getAttr: function(element, attribute){
return element.getAttribute(attribute);
},
_getAttr2: function(element, attribute){
return element.getAttribute(attribute, 2);
},
_getAttrNode: function(element, attribute){
var node=element.getAttributeNode(attribute);
return node ? node.value : "";
},
_getEv: (function(){
var el=document.createElement('div'), f;
el.onclick=Prototype.emptyFunction;
var value=el.getAttribute('onclick');
if (String(value).indexOf('{') > -1){
f=function(element, attribute){
attribute=element.getAttribute(attribute);
if (!attribute) return null;
attribute=attribute.toString();
attribute=attribute.split('{')[1];
attribute=attribute.split('}')[0];
return attribute.strip();
};
}
else if (value===''){
f=function(element, attribute){
attribute=element.getAttribute(attribute);
if (!attribute) return null;
return attribute.strip();
};
}
el=null;
return f;
})(),
_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={};
$w('colSpan rowSpan vAlign dateTime accessKey tabIndex '+
'encType maxLength readOnly longDesc frameBorder').each(function(attr){
Element._attributeTranslations.write.names[attr.toLowerCase()]=attr;
Element._attributeTranslations.has[attr.toLowerCase()]=attr;
});
(function(v){
Object.extend(v,{
href:        v._getAttr2,
src:         v._getAttr2,
type:        v._getAttr,
action:      v._getAttrNode,
disabled:    v._flag,
checked:     v._flag,
readonly:    v._flag,
multiple:    v._flag,
onload:      v._getEv,
onunload:    v._getEv,
onclick:     v._getEv,
ondblclick:  v._getEv,
onmousedown: v._getEv,
onmouseup:   v._getEv,
onmouseover: v._getEv,
onmousemove: v._getEv,
onmouseout:  v._getEv,
onfocus:     v._getEv,
onblur:      v._getEv,
onkeypress:  v._getEv,
onkeydown:   v._getEv,
onkeyup:     v._getEv,
onsubmit:    v._getEv,
onreset:     v._getEv,
onselect:    v._getEv,
onchange:    v._getEv
});
})(Element._attributeTranslations.read.values);
if (Prototype.BrowserFeatures.ElementExtensions){
(function(){
function _descendants(element){
var nodes=element.getElementsByTagName('*'), results=[];
for (var i=0, node; node=nodes[i]; i++)
if (node.tagName !=="!") 
results.push(node);
return results;
}
Element.Methods.down=function(element, expression, index){
element=$(element);
if (arguments.length==1) return element.firstDescendant();
return Object.isNumber(expression) ? _descendants(element)[expression] :
Element.select(element, expression)[index || 0];
}})();
}}
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.toUpperCase()=='IMG' && element.width){
element.width++; element.width--;
}else try{
var n=document.createTextNode(' ');
element.appendChild(n);
element.removeChild(n);
}catch (e){}
return element;
};
}
if ('outerHTML' in document.documentElement){
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(),
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, force){
var div=new Element('div'),
t=Element._insertionTranslations.tags[tagName];
var workaround=false;
if (t) workaround=true;
else if (force){
workaround=true;
t=['', '', 0];
}
if (workaround){
div.innerHTML='&nbsp;'+t[0]+html+t[1];
div.removeChild(div.firstChild);
for (var i=t[2]; i--; ){
div=div.firstChild;
}}
else{
div.innerHTML=html;
}
return $A(div.childNodes);
};
Element._insertionTranslations={
before: function(element, node){
element.parentNode.insertBefore(node, element);
},
top: function(element, node){
element.insertBefore(node, element.firstChild);
},
bottom: function(element, node){
element.appendChild(node);
},
after: function(element, node){
element.parentNode.insertBefore(node, element.nextSibling);
},
tags:{
TABLE:  ['<table>',                '</table>',                   1],
TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
SELECT: ['<select>',               '</select>',                  1]
}};
(function(){
var tags=Element._insertionTranslations.tags;
Object.extend(tags,{
THEAD: tags.TBODY,
TFOOT: tags.TBODY,
TH:    tags.TD
});
})();
Element.Methods.Simulated={
hasAttribute: function(element, attribute){
attribute=Element._attributeTranslations.has[attribute] || attribute;
var node=$(element).getAttributeNode(attribute);
return !!(node && node.specified);
}};
Element.Methods.ByTag={};
Object.extend(Element, Element.Methods);
(function(div){
if (!Prototype.BrowserFeatures.ElementExtensions && div['__proto__']){
window.HTMLElement={};
window.HTMLElement.prototype=div['__proto__'];
Prototype.BrowserFeatures.ElementExtensions=true;
}
div=null;
})(document.createElement('div'));
Element.extend=(function(){
function checkDeficiency(tagName){
if (typeof window.Element !='undefined'){
var proto=window.Element.prototype;
if (proto){
var id='_'+(Math.random()+'').slice(2),
el=document.createElement(tagName);
proto[id]='x';
var isBuggy=(el[id] !=='x');
delete proto[id];
el=null;
return isBuggy;
}}
return false;
}
function extendElementWith(element, methods){
for (var property in methods){
var value=methods[property];
if (Object.isFunction(value) && !(property in element))
element[property]=value.methodize();
}}
var HTMLOBJECTELEMENT_PROTOTYPE_BUGGY=checkDeficiency('object');
if (Prototype.BrowserFeatures.SpecificElementExtensions){
if (HTMLOBJECTELEMENT_PROTOTYPE_BUGGY){
return function(element){
if (element && typeof element._extendedByPrototype=='undefined'){
var t=element.tagName;
if (t && (/^(?:object|applet|embed)$/i.test(t))){
extendElementWith(element, Element.Methods);
extendElementWith(element, Element.Methods.Simulated);
extendElementWith(element, Element.Methods.ByTag[t.toUpperCase()]);
}}
return element;
}}
return Prototype.K;
}
var Methods={}, ByTag=Element.Methods.ByTag;
var extend=Object.extend(function(element){
if (!element || typeof element._extendedByPrototype !='undefined' ||
element.nodeType !=1 || element==window) return element;
var methods=Object.clone(Methods),
tagName=element.tagName.toUpperCase();
if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);
extendElementWith(element, methods);
element._extendedByPrototype=Prototype.emptyFunction;
return element;
},{
refresh: function(){
if (!Prototype.BrowserFeatures.ElementExtensions){
Object.extend(Methods, Element.Methods);
Object.extend(Methods, Element.Methods.Simulated);
}}});
extend.refresh();
return extend;
})();
if (document.documentElement.hasAttribute){
Element.hasAttribute=function(element, attribute){
return element.hasAttribute(attribute);
};
}
else{
Element.hasAttribute=Element.Methods.Simulated.hasAttribute;
}
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),
"BUTTON":   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];
var element=document.createElement(tagName),
proto=element['__proto__'] || element.constructor.prototype;
element=null;
return proto;
}
var elementPrototype=window.HTMLElement ? HTMLElement.prototype :
Element.prototype;
if (F.ElementExtensions){
copy(Element.Methods, elementPrototype);
copy(Element.Methods.Simulated, elementPrototype, 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(){
return{width: this.getWidth(), height: this.getHeight()};
},
getScrollOffsets: function(){
return Element._returnOffset(
window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
window.pageYOffset || document.documentElement.scrollTop  || document.body.scrollTop);
}};
(function(viewport){
var B=Prototype.Browser, doc=document, element, property={};
function getRootElement(){
if (B.WebKit && !doc.evaluate)
return document;
if (B.Opera && window.parseFloat(window.opera.version()) < 9.5)
return document.body;
return document.documentElement;
}
function define(D){
if (!element) element=getRootElement();
property[D]='client'+D;
viewport['get'+D]=function(){return element[property[D]]};
return viewport['get'+D]();
}
viewport.getWidth=define.curry('Width');
viewport.getHeight=define.curry('Height');
})(document.viewport);
Element.Storage={
UID: 1
};
Element.addMethods({
getStorage: function(element){
if (!(element=$(element))) return;
var uid;
if (element===window){
uid=0;
}else{
if (typeof element._prototypeUID==="undefined")
element._prototypeUID=Element.Storage.UID++;
uid=element._prototypeUID;
}
if (!Element.Storage[uid])
Element.Storage[uid]=$H();
return Element.Storage[uid];
},
store: function(element, key, value){
if (!(element=$(element))) return;
if (arguments.length===2){
Element.getStorage(element).update(key);
}else{
Element.getStorage(element).set(key, value);
}
return element;
},
retrieve: function(element, key, defaultValue){
if (!(element=$(element))) return;
var hash=Element.getStorage(element), value=hash.get(key);
if (Object.isUndefined(value)){
hash.set(key, defaultValue);
value=defaultValue;
}
return value;
},
clone: function(element, deep){
if (!(element=$(element))) return;
var clone=element.cloneNode(deep);
clone._prototypeUID=void 0;
if (deep){
var descendants=Element.select(clone, '*'),
i=descendants.length;
while (i--){
descendants[i]._prototypeUID=void 0;
}}
return Element.extend(clone);
},
purge: function(element){
if (!(element=$(element))) return;
var purgeElement=Element._purgeElement;
purgeElement(element);
var descendants=element.getElementsByTagName('*'),
i=descendants.length;
while (i--) purgeElement(descendants[i]);
return null;
}});
(function(){
function toDecimal(pctString){
var match=pctString.match(/^(\d+)%?$/i);
if (!match) return null;
return (Number(match[1]) / 100);
}
function getPixelValue(value, property, context){
var element=null;
if (Object.isElement(value)){
element=value;
value=element.getStyle(property);
}
if (value===null){
return null;
}
if ((/^(?:-)?\d+(\.\d+)?(px)?$/i).test(value)){
return window.parseFloat(value);
}
var isPercentage=value.include('%'), isViewport=(context===document.viewport);
if (/\d/.test(value) && element && element.runtimeStyle && !(isPercentage && isViewport)){
var style=element.style.left, rStyle=element.runtimeStyle.left;
element.runtimeStyle.left=element.currentStyle.left;
element.style.left=value || 0;
value=element.style.pixelLeft;
element.style.left=style;
element.runtimeStyle.left=rStyle;
return value;
}
if (element && isPercentage){
context=context || element.parentNode;
var decimal=toDecimal(value);
var whole=null;
var position=element.getStyle('position');
var isHorizontal=property.include('left') || property.include('right') ||
property.include('width');
var isVertical=property.include('top') || property.include('bottom') ||
property.include('height');
if (context===document.viewport){
if (isHorizontal){
whole=document.viewport.getWidth();
}else if (isVertical){
whole=document.viewport.getHeight();
}}else{
if (isHorizontal){
whole=$(context).measure('width');
}else if (isVertical){
whole=$(context).measure('height');
}}
return (whole===null) ? 0 : whole * decimal;
}
return 0;
}
function toCSSPixels(number){
if (Object.isString(number) && number.endsWith('px')){
return number;
}
return number+'px';
}
function isDisplayed(element){
var originalElement=element;
while (element && element.parentNode){
var display=element.getStyle('display');
if (display==='none'){
return false;
}
element=$(element.parentNode);
}
return true;
}
var hasLayout=Prototype.K;
if ('currentStyle' in document.documentElement){
hasLayout=function(element){
if (!element.currentStyle.hasLayout){
element.style.zoom=1;
}
return element;
};
}
function cssNameFor(key){
if (key.include('border')) key=key+'-width';
return key.camelize();
}
Element.Layout=Class.create(Hash,{
initialize: function($super, element, preCompute){
$super();
this.element=$(element);
Element.Layout.PROPERTIES.each( function(property){
this._set(property, null);
}, this);
if (preCompute){
this._preComputing=true;
this._begin();
Element.Layout.PROPERTIES.each( this._compute, this );
this._end();
this._preComputing=false;
}},
_set: function(property, value){
return Hash.prototype.set.call(this, property, value);
},
set: function(property, value){
throw "Properties of Element.Layout are read-only.";
},
get: function($super, property){
var value=$super(property);
return value===null ? this._compute(property) : value;
},
_begin: function(){
if (this._prepared) return;
var element=this.element;
if (isDisplayed(element)){
this._prepared=true;
return;
}
var originalStyles={
position:   element.style.position   || '',
width:      element.style.width      || '',
visibility: element.style.visibility || '',
display:    element.style.display    || ''
};
element.store('prototype_original_styles', originalStyles);
var position=element.getStyle('position'),
width=element.getStyle('width');
if (width==="0px" || width===null){
element.style.display='block';
width=element.getStyle('width');
}
var context=(position==='fixed') ? document.viewport :
element.parentNode;
element.setStyle({
position:   'absolute',
visibility:'hidden',
display:    'block'
});
var positionedWidth=element.getStyle('width');
var newWidth;
if (width && (positionedWidth===width)){
newWidth=getPixelValue(element, 'width', context);
}else if (position==='absolute' || position==='fixed'){
newWidth=getPixelValue(element, 'width', context);
}else{
var parent=element.parentNode, pLayout=$(parent).getLayout();
newWidth=pLayout.get('width') -
this.get('margin-left') -
this.get('border-left') -
this.get('padding-left') -
this.get('padding-right') -
this.get('border-right') -
this.get('margin-right');
}
element.setStyle({width: newWidth+'px'});
this._prepared=true;
},
_end: function(){
var element=this.element;
var originalStyles=element.retrieve('prototype_original_styles');
element.store('prototype_original_styles', null);
element.setStyle(originalStyles);
this._prepared=false;
},
_compute: function(property){
var COMPUTATIONS=Element.Layout.COMPUTATIONS;
if (!(property in COMPUTATIONS)){
throw "Property not found.";
}
return this._set(property, COMPUTATIONS[property].call(this, this.element));
},
toObject: function(){
var args=$A(arguments);
var keys=(args.length===0) ? Element.Layout.PROPERTIES :
args.join(' ').split(' ');
var obj={};
keys.each( function(key){
if (!Element.Layout.PROPERTIES.include(key)) return;
var value=this.get(key);
if (value !=null) obj[key]=value;
}, this);
return obj;
},
toHash: function(){
var obj=this.toObject.apply(this, arguments);
return new Hash(obj);
},
toCSS: function(){
var args=$A(arguments);
var keys=(args.length===0) ? Element.Layout.PROPERTIES :
args.join(' ').split(' ');
var css={};
keys.each( function(key){
if (!Element.Layout.PROPERTIES.include(key)) return;
if (Element.Layout.COMPOSITE_PROPERTIES.include(key)) return;
var value=this.get(key);
if (value !=null) css[cssNameFor(key)]=value+'px';
}, this);
return css;
},
inspect: function(){
return "#<Element.Layout>";
}});
Object.extend(Element.Layout,{
PROPERTIES: $w('height width top left right bottom border-left border-right border-top border-bottom padding-left padding-right padding-top padding-bottom margin-top margin-bottom margin-left margin-right padding-box-width padding-box-height border-box-width border-box-height margin-box-width margin-box-height'),
COMPOSITE_PROPERTIES: $w('padding-box-width padding-box-height margin-box-width margin-box-height border-box-width border-box-height'),
COMPUTATIONS:{
'height': function(element){
if (!this._preComputing) this._begin();
var bHeight=this.get('border-box-height');
if (bHeight <=0){
if (!this._preComputing) this._end();
return 0;
}
var bTop=this.get('border-top'),
bBottom=this.get('border-bottom');
var pTop=this.get('padding-top'),
pBottom=this.get('padding-bottom');
if (!this._preComputing) this._end();
return bHeight - bTop - bBottom - pTop - pBottom;
},
'width': function(element){
if (!this._preComputing) this._begin();
var bWidth=this.get('border-box-width');
if (bWidth <=0){
if (!this._preComputing) this._end();
return 0;
}
var bLeft=this.get('border-left'),
bRight=this.get('border-right');
var pLeft=this.get('padding-left'),
pRight=this.get('padding-right');
if (!this._preComputing) this._end();
return bWidth - bLeft - bRight - pLeft - pRight;
},
'padding-box-height': function(element){
var height=this.get('height'),
pTop=this.get('padding-top'),
pBottom=this.get('padding-bottom');
return height+pTop+pBottom;
},
'padding-box-width': function(element){
var width=this.get('width'),
pLeft=this.get('padding-left'),
pRight=this.get('padding-right');
return width+pLeft+pRight;
},
'border-box-height': function(element){
if (!this._preComputing) this._begin();
var height=element.offsetHeight;
if (!this._preComputing) this._end();
return height;
},
'border-box-width': function(element){
if (!this._preComputing) this._begin();
var width=element.offsetWidth;
if (!this._preComputing) this._end();
return width;
},
'margin-box-height': function(element){
var bHeight=this.get('border-box-height'),
mTop=this.get('margin-top'),
mBottom=this.get('margin-bottom');
if (bHeight <=0) return 0;
return bHeight+mTop+mBottom;
},
'margin-box-width': function(element){
var bWidth=this.get('border-box-width'),
mLeft=this.get('margin-left'),
mRight=this.get('margin-right');
if (bWidth <=0) return 0;
return bWidth+mLeft+mRight;
},
'top': function(element){
var offset=element.positionedOffset();
return offset.top;
},
'bottom': function(element){
var offset=element.positionedOffset(),
parent=element.getOffsetParent(),
pHeight=parent.measure('height');
var mHeight=this.get('border-box-height');
return pHeight - mHeight - offset.top;
},
'left': function(element){
var offset=element.positionedOffset();
return offset.left;
},
'right': function(element){
var offset=element.positionedOffset(),
parent=element.getOffsetParent(),
pWidth=parent.measure('width');
var mWidth=this.get('border-box-width');
return pWidth - mWidth - offset.left;
},
'padding-top': function(element){
return getPixelValue(element, 'paddingTop');
},
'padding-bottom': function(element){
return getPixelValue(element, 'paddingBottom');
},
'padding-left': function(element){
return getPixelValue(element, 'paddingLeft');
},
'padding-right': function(element){
return getPixelValue(element, 'paddingRight');
},
'border-top': function(element){
return getPixelValue(element, 'borderTopWidth');
},
'border-bottom': function(element){
return getPixelValue(element, 'borderBottomWidth');
},
'border-left': function(element){
return getPixelValue(element, 'borderLeftWidth');
},
'border-right': function(element){
return getPixelValue(element, 'borderRightWidth');
},
'margin-top': function(element){
return getPixelValue(element, 'marginTop');
},
'margin-bottom': function(element){
return getPixelValue(element, 'marginBottom');
},
'margin-left': function(element){
return getPixelValue(element, 'marginLeft');
},
'margin-right': function(element){
return getPixelValue(element, 'marginRight');
}}});
if ('getBoundingClientRect' in document.documentElement){
Object.extend(Element.Layout.COMPUTATIONS,{
'right': function(element){
var parent=hasLayout(element.getOffsetParent());
var rect=element.getBoundingClientRect(),
pRect=parent.getBoundingClientRect();
return (pRect.right - rect.right).round();
},
'bottom': function(element){
var parent=hasLayout(element.getOffsetParent());
var rect=element.getBoundingClientRect(),
pRect=parent.getBoundingClientRect();
return (pRect.bottom - rect.bottom).round();
}});
}
Element.Offset=Class.create({
initialize: function(left, top){
this.left=left.round();
this.top=top.round();
this[0]=this.left;
this[1]=this.top;
},
relativeTo: function(offset){
return new Element.Offset(
this.left - offset.left,
this.top  - offset.top
);
},
inspect: function(){
return "#<Element.Offset left: #{left}top: #{top}>".interpolate(this);
},
toString: function(){
return "[#{left}, #{top}]".interpolate(this);
},
toArray: function(){
return [this.left, this.top];
}});
function getLayout(element, preCompute){
return new Element.Layout(element, preCompute);
}
function measure(element, property){
return $(element).getLayout().get(property);
}
function getDimensions(element){
element=$(element);
var display=Element.getStyle(element, 'display');
if (display && display !=='none'){
return{width: element.offsetWidth, height: element.offsetHeight};
}
var style=element.style;
var originalStyles={
visibility: style.visibility,
position:   style.position,
display:    style.display
};
var newStyles={
visibility:'hidden',
display:    'block'
};
if (originalStyles.position !=='fixed')
newStyles.position='absolute';
Element.setStyle(element, newStyles);
var dimensions={
width:  element.offsetWidth,
height: element.offsetHeight
};
Element.setStyle(element, originalStyles);
return dimensions;
}
function getOffsetParent(element){
element=$(element);
if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
return $(document.body);
var isInline=(Element.getStyle(element, 'display')==='inline');
if (!isInline && element.offsetParent) return $(element.offsetParent);
while ((element=element.parentNode) && element !==document.body){
if (Element.getStyle(element, 'position') !=='static'){
return isHtml(element) ? $(document.body) : $(element);
}}
return $(document.body);
}
function cumulativeOffset(element){
element=$(element);
var valueT=0, valueL=0;
if (element.parentNode){
do{
valueT+=element.offsetTop  || 0;
valueL+=element.offsetLeft || 0;
element=element.offsetParent;
}while (element);
}
return new Element.Offset(valueL, valueT);
}
function positionedOffset(element){
element=$(element);
var layout=element.getLayout();
var valueT=0, valueL=0;
do{
valueT+=element.offsetTop  || 0;
valueL+=element.offsetLeft || 0;
element=element.offsetParent;
if (element){
if (isBody(element)) break;
var p=Element.getStyle(element, 'position');
if (p !=='static') break;
}}while (element);
valueL -=layout.get('margin-top');
valueT -=layout.get('margin-left');
return new Element.Offset(valueL, valueT);
}
function cumulativeScrollOffset(element){
var valueT=0, valueL=0;
do{
valueT+=element.scrollTop  || 0;
valueL+=element.scrollLeft || 0;
element=element.parentNode;
}while (element);
return new Element.Offset(valueL, valueT);
}
function viewportOffset(forElement){
element=$(element);
var valueT=0, valueL=0, docBody=document.body;
var element=forElement;
do{
valueT+=element.offsetTop  || 0;
valueL+=element.offsetLeft || 0;
if (element.offsetParent==docBody &&
Element.getStyle(element, 'position')=='absolute') break;
}while (element=element.offsetParent);
element=forElement;
do{
if (element !=docBody){
valueT -=element.scrollTop  || 0;
valueL -=element.scrollLeft || 0;
}}while (element=element.parentNode);
return new Element.Offset(valueL, valueT);
}
function absolutize(element){
element=$(element);
if (Element.getStyle(element, 'position')==='absolute'){
return element;
}
var offsetParent=getOffsetParent(element);
var eOffset=element.viewportOffset(),
pOffset=offsetParent.viewportOffset();
var offset=eOffset.relativeTo(pOffset);
var layout=element.getLayout();
element.store('prototype_absolutize_original_styles',{
left:   element.getStyle('left'),
top:    element.getStyle('top'),
width:  element.getStyle('width'),
height: element.getStyle('height')
});
element.setStyle({
position:'absolute',
top:    offset.top+'px',
left:   offset.left+'px',
width:  layout.get('width')+'px',
height: layout.get('height')+'px'
});
return element;
}
function relativize(element){
element=$(element);
if (Element.getStyle(element, 'position')==='relative'){
return element;
}
var originalStyles=
element.retrieve('prototype_absolutize_original_styles');
if (originalStyles) element.setStyle(originalStyles);
return element;
}
if (Prototype.Browser.IE){
getOffsetParent=getOffsetParent.wrap(
function(proceed, element){
element=$(element);
if (isDocument(element) || isDetached(element) || isBody(element) || isHtml(element))
return $(document.body);
var position=element.getStyle('position');
if (position !=='static') return proceed(element);
element.setStyle({position:'relative'});
var value=proceed(element);
element.setStyle({position: position});
return value;
}
);
positionedOffset=positionedOffset.wrap(function(proceed, element){
element=$(element);
if (!element.parentNode) return new Element.Offset(0, 0);
var position=element.getStyle('position');
if (position !=='static') return proceed(element);
var offsetParent=element.getOffsetParent();
if (offsetParent && offsetParent.getStyle('position')==='fixed')
hasLayout(offsetParent);
element.setStyle({position:'relative'});
var value=proceed(element);
element.setStyle({position: position});
return value;
});
}else if (Prototype.Browser.Webkit){
cumulativeOffset=function(element){
element=$(element);
var valueT=0, valueL=0;
do{
valueT+=element.offsetTop  || 0;
valueL+=element.offsetLeft || 0;
if (element.offsetParent==document.body)
if (Element.getStyle(element, 'position')=='absolute') break;
element=element.offsetParent;
}while (element);
return new Element.Offset(valueL, valueT);
};
}
Element.addMethods({
getLayout:              getLayout,
measure:                measure,
getDimensions:          getDimensions,
getOffsetParent:        getOffsetParent,
cumulativeOffset:       cumulativeOffset,
positionedOffset:       positionedOffset,
cumulativeScrollOffset: cumulativeScrollOffset,
viewportOffset:         viewportOffset,
absolutize:             absolutize,
relativize:             relativize
});
function isBody(element){
return element.nodeName.toUpperCase()==='BODY';
}
function isHtml(element){
return element.nodeName.toUpperCase()==='HTML';
}
function isDocument(element){
return element.nodeType===Node.DOCUMENT_NODE;
}
function isDetached(element){
return element !==document.body &&
!Element.descendantOf(element, document.body);
}
if ('getBoundingClientRect' in document.documentElement){
Element.addMethods({
viewportOffset: function(element){
element=$(element);
if (isDetached(element)) return new Element.Offset(0, 0);
var rect=element.getBoundingClientRect(),
docEl=document.documentElement;
return new Element.Offset(rect.left - docEl.clientLeft,
rect.top - docEl.clientTop);
}});
}})();
window.$$=function(){
var expression=$A(arguments).join(', ');
return Prototype.Selector.select(expression, document);
};
Prototype.Selector=(function(){
function select(){
throw new Error('Method "Prototype.Selector.select" must be defined.');
}
function match(){
throw new Error('Method "Prototype.Selector.match" must be defined.');
}
function find(elements, expression, index){
index=index || 0;
var match=Prototype.Selector.match, length=elements.length, matchIndex=0, i;
for (i=0; i < length; i++){
if (match(elements[i], expression) && index==matchIndex++){
return Element.extend(elements[i]);
}}}
function extendElements(elements){
for (var i=0, length=elements.length; i < length; i++){
Element.extend(elements[i]);
}
return elements;
}
var K=Prototype.K;
return{
select: select,
match: match,
find: find,
extendElements: (Element.extend===K) ? K : extendElements,
extendElement: Element.extend
};
})();
Prototype._original_property=window.Sizzle;
/*!
* Sizzle CSS Selector Engine - v1.0
*  Copyright 2009, The Dojo Foundation
*  Released under the MIT, BSD, and GPL Licenses.
*  More information: http://sizzlejs.com/
*/
(function(){
var chunker=/((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]*\]|['"][^'"]*['"]|[^[\]'"]+)+\]|\\.|[^ >+~,(\[\\]+)+|[>+~])(\s*,\s*)?((?:.|\r|\n)*)/g,
done=0,
toString=Object.prototype.toString,
hasDuplicate=false,
baseHasDuplicate=true;
[0, 0].sort(function(){
baseHasDuplicate=false;
return 0;
});
var Sizzle=function(selector, context, results, seed){
results=results || [];
var origContext=context=context || document;
if ( context.nodeType !==1 && context.nodeType !==9 ){
return [];
}
if ( !selector || typeof selector !=="string" ){
return results;
}
var parts=[], m, set, checkSet, check, mode, extra, prune=true, contextXML=isXML(context),
soFar=selector;
while ( (chunker.exec(""), m=chunker.exec(soFar)) !==null ){
soFar=m[3];
parts.push( m[1] );
if ( m[2] ){
extra=m[3];
break;
}}
if ( parts.length > 1 && origPOS.exec( selector ) ){
if ( parts.length===2 && Expr.relative[ parts[0] ] ){
set=posProcess( parts[0]+parts[1], context );
}else{
set=Expr.relative[ parts[0] ] ?
[ context ] :
Sizzle( parts.shift(), context );
while ( parts.length ){
selector=parts.shift();
if ( Expr.relative[ selector ] )
selector+=parts.shift();
set=posProcess( selector, set );
}}}else{
if ( !seed && parts.length > 1 && context.nodeType===9 && !contextXML &&
Expr.match.ID.test(parts[0]) && !Expr.match.ID.test(parts[parts.length - 1]) ){
var ret=Sizzle.find( parts.shift(), context, contextXML );
context=ret.expr ? Sizzle.filter( ret.expr, ret.set )[0] : ret.set[0];
}
if ( context ){
var ret=seed ?
{expr: parts.pop(), set: makeArray(seed)}:
Sizzle.find( parts.pop(), parts.length===1 && (parts[0]==="~" || parts[0]==="+") && context.parentNode ? context.parentNode : context, contextXML );
set=ret.expr ? Sizzle.filter( ret.expr, ret.set ) : ret.set;
if ( parts.length > 0 ){
checkSet=makeArray(set);
}else{
prune=false;
}
while ( parts.length ){
var cur=parts.pop(), pop=cur;
if ( !Expr.relative[ cur ] ){
cur="";
}else{
pop=parts.pop();
}
if ( pop==null ){
pop=context;
}
Expr.relative[ cur ]( checkSet, pop, contextXML );
}}else{
checkSet=parts=[];
}}
if ( !checkSet ){
checkSet=set;
}
if ( !checkSet ){
throw "Syntax error, unrecognized expression: "+(cur || selector);
}
if ( toString.call(checkSet)==="[object Array]" ){
if ( !prune ){
results.push.apply( results, checkSet );
}else if ( context && context.nodeType===1 ){
for ( var i=0; checkSet[i] !=null; i++){
if ( checkSet[i] && (checkSet[i]===true || checkSet[i].nodeType===1 && contains(context, checkSet[i])) ){
results.push( set[i] );
}}}else{
for ( var i=0; checkSet[i] !=null; i++){
if ( checkSet[i] && checkSet[i].nodeType===1 ){
results.push( set[i] );
}}}}else{
makeArray( checkSet, results );
}
if ( extra ){
Sizzle( extra, origContext, results, seed );
Sizzle.uniqueSort( results );
}
return results;
};
Sizzle.uniqueSort=function(results){
if ( sortOrder ){
hasDuplicate=baseHasDuplicate;
results.sort(sortOrder);
if ( hasDuplicate ){
for ( var i=1; i < results.length; i++){
if ( results[i]===results[i-1] ){
results.splice(i--, 1);
}}}}
return results;
};
Sizzle.matches=function(expr, set){
return Sizzle(expr, null, null, set);
};
Sizzle.find=function(expr, context, isXML){
var set, match;
if ( !expr ){
return [];
}
for ( var i=0, l=Expr.order.length; i < l; i++){
var type=Expr.order[i], match;
if ( (match=Expr.leftMatch[ type ].exec( expr )) ){
var left=match[1];
match.splice(1,1);
if ( left.substr( left.length - 1 ) !=="\\" ){
match[1]=(match[1] || "").replace(/\\/g, "");
set=Expr.find[ type ]( match, context, isXML );
if ( set !=null ){
expr=expr.replace( Expr.match[ type ], "" );
break;
}}}}
if ( !set ){
set=context.getElementsByTagName("*");
}
return{set: set, expr: expr};
};
Sizzle.filter=function(expr, set, inplace, not){
var old=expr, result=[], curLoop=set, match, anyFound,
isXMLFilter=set && set[0] && isXML(set[0]);
while ( expr && set.length ){
for ( var type in Expr.filter ){
if ( (match=Expr.match[ type ].exec( expr )) !=null ){
var filter=Expr.filter[ type ], found, item;
anyFound=false;
if ( curLoop==result ){
result=[];
}
if ( Expr.preFilter[ type ] ){
match=Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
if ( !match ){
anyFound=found=true;
}else if ( match===true ){
continue;
}}
if ( match ){
for ( var i=0; (item=curLoop[i]) !=null; i++){
if ( item ){
found=filter( item, match, i, curLoop );
var pass=not ^ !!found;
if ( inplace && found !=null ){
if ( pass ){
anyFound=true;
}else{
curLoop[i]=false;
}}else if ( pass ){
result.push( item );
anyFound=true;
}}}}
if ( found !==undefined ){
if ( !inplace ){
curLoop=result;
}
expr=expr.replace( Expr.match[ type ], "" );
if ( !anyFound ){
return [];
}
break;
}}}
if ( expr==old ){
if ( anyFound==null ){
throw "Syntax error, unrecognized expression: "+expr;
}else{
break;
}}
old=expr;
}
return curLoop;
};
var Expr=Sizzle.selectors={
order: [ "ID", "NAME", "TAG" ],
match:{
ID: /#((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
CLASS: /\.((?:[\w\u00c0-\uFFFF-]|\\.)+)/,
NAME: /\[name=['"]*((?:[\w\u00c0-\uFFFF-]|\\.)+)['"]*\]/,
ATTR: /\[\s*((?:[\w\u00c0-\uFFFF-]|\\.)+)\s*(?:(\S?=)\s*(['"]*)(.*?)\3|)\s*\]/,
TAG: /^((?:[\w\u00c0-\uFFFF\*-]|\\.)+)/,
CHILD: /:(only|nth|last|first)-child(?:\((even|odd|[\dn+-]*)\))?/,
POS: /:(nth|eq|gt|lt|first|last|even|odd)(?:\((\d*)\))?(?=[^-]|$)/,
PSEUDO: /:((?:[\w\u00c0-\uFFFF-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
},
leftMatch:{},
attrMap:{
"class": "className",
"for": "htmlFor"
},
attrHandle:{
href: function(elem){
return elem.getAttribute("href");
}},
relative:{
"+": function(checkSet, part, isXML){
var isPartStr=typeof part==="string",
isTag=isPartStr && !/\W/.test(part),
isPartStrNotTag=isPartStr && !isTag;
if ( isTag && !isXML ){
part=part.toUpperCase();
}
for ( var i=0, l=checkSet.length, elem; i < l; i++){
if ( (elem=checkSet[i]) ){
while ( (elem=elem.previousSibling) && elem.nodeType !==1 ){}
checkSet[i]=isPartStrNotTag || elem && elem.nodeName===part ?
elem || false :
elem===part;
}}
if ( isPartStrNotTag ){
Sizzle.filter( part, checkSet, true );
}},
">": function(checkSet, part, isXML){
var isPartStr=typeof part==="string";
if ( isPartStr && !/\W/.test(part) ){
part=isXML ? part : part.toUpperCase();
for ( var i=0, l=checkSet.length; i < l; i++){
var elem=checkSet[i];
if ( elem ){
var parent=elem.parentNode;
checkSet[i]=parent.nodeName===part ? parent : false;
}}}else{
for ( var i=0, l=checkSet.length; i < l; i++){
var elem=checkSet[i];
if ( elem ){
checkSet[i]=isPartStr ?
elem.parentNode :
elem.parentNode===part;
}}
if ( isPartStr ){
Sizzle.filter( part, checkSet, true );
}}},
"": function(checkSet, part, isXML){
var doneName=done++, checkFn=dirCheck;
if ( !/\W/.test(part) ){
var nodeCheck=part=isXML ? part : part.toUpperCase();
checkFn=dirNodeCheck;
}
checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML);
},
"~": function(checkSet, part, isXML){
var doneName=done++, checkFn=dirCheck;
if ( typeof part==="string" && !/\W/.test(part) ){
var nodeCheck=part=isXML ? part : part.toUpperCase();
checkFn=dirNodeCheck;
}
checkFn("previousSibling", part, doneName, checkSet, nodeCheck, isXML);
}},
find:{
ID: function(match, context, isXML){
if ( typeof context.getElementById !=="undefined" && !isXML ){
var m=context.getElementById(match[1]);
return m ? [m] : [];
}},
NAME: function(match, context, isXML){
if ( typeof context.getElementsByName !=="undefined" ){
var ret=[], results=context.getElementsByName(match[1]);
for ( var i=0, l=results.length; i < l; i++){
if ( results[i].getAttribute("name")===match[1] ){
ret.push( results[i] );
}}
return ret.length===0 ? null : ret;
}},
TAG: function(match, context){
return context.getElementsByTagName(match[1]);
}},
preFilter:{
CLASS: function(match, curLoop, inplace, result, not, isXML){
match=" "+match[1].replace(/\\/g, "")+" ";
if ( isXML ){
return match;
}
for ( var i=0, elem; (elem=curLoop[i]) !=null; i++){
if ( elem ){
if ( not ^ (elem.className && (" "+elem.className+" ").indexOf(match) >=0) ){
if ( !inplace )
result.push( elem );
}else if ( inplace ){
curLoop[i]=false;
}}}
return false;
},
ID: function(match){
return match[1].replace(/\\/g, "");
},
TAG: function(match, curLoop){
for ( var i=0; curLoop[i]===false; i++){}
return curLoop[i] && isXML(curLoop[i]) ? match[1] : match[1].toUpperCase();
},
CHILD: function(match){
if ( match[1]=="nth" ){
var test=/(-?)(\d*)n((?:\+|-)?\d*)/.exec(
match[2]=="even" && "2n" || match[2]=="odd" && "2n+1" ||
!/\D/.test( match[2] ) && "0n+"+match[2] || match[2]);
match[2]=(test[1]+(test[2] || 1)) - 0;
match[3]=test[3] - 0;
}
match[0]=done++;
return match;
},
ATTR: function(match, curLoop, inplace, result, not, isXML){
var name=match[1].replace(/\\/g, "");
if ( !isXML && Expr.attrMap[name] ){
match[1]=Expr.attrMap[name];
}
if ( match[2]==="~=" ){
match[4]=" "+match[4]+" ";
}
return match;
},
PSEUDO: function(match, curLoop, inplace, result, not){
if ( match[1]==="not" ){
if ( ( chunker.exec(match[3]) || "" ).length > 1 || /^\w/.test(match[3]) ){
match[3]=Sizzle(match[3], null, null, curLoop);
}else{
var ret=Sizzle.filter(match[3], curLoop, inplace, true ^ not);
if ( !inplace ){
result.push.apply( result, ret );
}
return false;
}}else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ){
return true;
}
return match;
},
POS: function(match){
match.unshift( true );
return match;
}},
filters:{
enabled: function(elem){
return elem.disabled===false && elem.type !=="hidden";
},
disabled: function(elem){
return elem.disabled===true;
},
checked: function(elem){
return elem.checked===true;
},
selected: function(elem){
elem.parentNode.selectedIndex;
return elem.selected===true;
},
parent: function(elem){
return !!elem.firstChild;
},
empty: function(elem){
return !elem.firstChild;
},
has: function(elem, i, match){
return !!Sizzle( match[3], elem ).length;
},
header: function(elem){
return /h\d/i.test( elem.nodeName );
},
text: function(elem){
return "text"===elem.type;
},
radio: function(elem){
return "radio"===elem.type;
},
checkbox: function(elem){
return "checkbox"===elem.type;
},
file: function(elem){
return "file"===elem.type;
},
password: function(elem){
return "password"===elem.type;
},
submit: function(elem){
return "submit"===elem.type;
},
image: function(elem){
return "image"===elem.type;
},
reset: function(elem){
return "reset"===elem.type;
},
button: function(elem){
return "button"===elem.type || elem.nodeName.toUpperCase()==="BUTTON";
},
input: function(elem){
return /input|select|textarea|button/i.test(elem.nodeName);
}},
setFilters:{
first: function(elem, i){
return i===0;
},
last: function(elem, i, match, array){
return i===array.length - 1;
},
even: function(elem, i){
return i % 2===0;
},
odd: function(elem, i){
return i % 2===1;
},
lt: function(elem, i, match){
return i < match[3] - 0;
},
gt: function(elem, i, match){
return i > match[3] - 0;
},
nth: function(elem, i, match){
return match[3] - 0==i;
},
eq: function(elem, i, match){
return match[3] - 0==i;
}},
filter:{
PSEUDO: function(elem, match, i, array){
var name=match[1], filter=Expr.filters[ name ];
if ( filter ){
return filter( elem, i, match, array );
}else if ( name==="contains" ){
return (elem.textContent || elem.innerText || "").indexOf(match[3]) >=0;
}else if ( name==="not" ){
var not=match[3];
for ( var i=0, l=not.length; i < l; i++){
if ( not[i]===elem ){
return false;
}}
return true;
}},
CHILD: function(elem, match){
var type=match[1], node=elem;
switch (type){
case 'only':
case 'first':
while ( (node=node.previousSibling) ){
if ( node.nodeType===1 ) return false;
}
if ( type=='first') return true;
node=elem;
case 'last':
while ( (node=node.nextSibling) ){
if ( node.nodeType===1 ) return false;
}
return true;
case 'nth':
var first=match[2], last=match[3];
if ( first==1 && last==0 ){
return true;
}
var doneName=match[0],
parent=elem.parentNode;
if ( parent && (parent.sizcache !==doneName || !elem.nodeIndex) ){
var count=0;
for ( node=parent.firstChild; node; node=node.nextSibling ){
if ( node.nodeType===1 ){
node.nodeIndex=++count;
}}
parent.sizcache=doneName;
}
var diff=elem.nodeIndex - last;
if ( first==0 ){
return diff==0;
}else{
return ( diff % first==0 && diff / first >=0 );
}}},
ID: function(elem, match){
return elem.nodeType===1 && elem.getAttribute("id")===match;
},
TAG: function(elem, match){
return (match==="*" && elem.nodeType===1) || elem.nodeName===match;
},
CLASS: function(elem, match){
return (" "+(elem.className || elem.getAttribute("class"))+" ")
.indexOf( match ) > -1;
},
ATTR: function(elem, match){
var name=match[1],
result=Expr.attrHandle[ name ] ?
Expr.attrHandle[ name ]( elem ) :
elem[ name ] !=null ?
elem[ name ] :
elem.getAttribute( name ),
value=result+"",
type=match[2],
check=match[4];
return result==null ?
type==="!=" :
type==="=" ?
value===check :
type==="*=" ?
value.indexOf(check) >=0 :
type==="~=" ?
(" "+value+" ").indexOf(check) >=0 :
!check ?
value && result !==false :
type==="!=" ?
value !=check :
type==="^=" ?
value.indexOf(check)===0 :
type==="$=" ?
value.substr(value.length - check.length)===check :
type==="|=" ?
value===check || value.substr(0, check.length+1)===check+"-" :
false;
},
POS: function(elem, match, i, array){
var name=match[2], filter=Expr.setFilters[ name ];
if ( filter ){
return filter( elem, i, match, array );
}}}};
var origPOS=Expr.match.POS;
for ( var type in Expr.match ){
Expr.match[ type ]=new RegExp( Expr.match[ type ].source+/(?![^\[]*\])(?![^\(]*\))/.source );
Expr.leftMatch[ type ]=new RegExp( /(^(?:.|\r|\n)*?)/.source+Expr.match[ type ].source );
}
var makeArray=function(array, results){
array=Array.prototype.slice.call( array, 0 );
if ( results ){
results.push.apply( results, array );
return results;
}
return array;
};
try{
Array.prototype.slice.call( document.documentElement.childNodes, 0 );
}catch(e){
makeArray=function(array, results){
var ret=results || [];
if ( toString.call(array)==="[object Array]" ){
Array.prototype.push.apply( ret, array );
}else{
if ( typeof array.length==="number" ){
for ( var i=0, l=array.length; i < l; i++){
ret.push( array[i] );
}}else{
for ( var i=0; array[i]; i++){
ret.push( array[i] );
}}}
return ret;
};
}
var sortOrder;
if ( document.documentElement.compareDocumentPosition ){
sortOrder=function( a, b ){
if ( !a.compareDocumentPosition || !b.compareDocumentPosition ){
if ( a==b ){
hasDuplicate=true;
}
return 0;
}
var ret=a.compareDocumentPosition(b) & 4 ? -1 : a===b ? 0 : 1;
if ( ret===0 ){
hasDuplicate=true;
}
return ret;
};
}else if ( "sourceIndex" in document.documentElement ){
sortOrder=function( a, b ){
if ( !a.sourceIndex || !b.sourceIndex ){
if ( a==b ){
hasDuplicate=true;
}
return 0;
}
var ret=a.sourceIndex - b.sourceIndex;
if ( ret===0 ){
hasDuplicate=true;
}
return ret;
};
}else if ( document.createRange ){
sortOrder=function( a, b ){
if ( !a.ownerDocument || !b.ownerDocument ){
if ( a==b ){
hasDuplicate=true;
}
return 0;
}
var aRange=a.ownerDocument.createRange(), bRange=b.ownerDocument.createRange();
aRange.setStart(a, 0);
aRange.setEnd(a, 0);
bRange.setStart(b, 0);
bRange.setEnd(b, 0);
var ret=aRange.compareBoundaryPoints(Range.START_TO_END, bRange);
if ( ret===0 ){
hasDuplicate=true;
}
return ret;
};
}
(function(){
var form=document.createElement("div"),
id="script"+(new Date).getTime();
form.innerHTML="<a name='"+id+"'/>";
var root=document.documentElement;
root.insertBefore( form, root.firstChild );
if ( !!document.getElementById( id ) ){
Expr.find.ID=function(match, context, isXML){
if ( typeof context.getElementById !=="undefined" && !isXML ){
var m=context.getElementById(match[1]);
return m ? m.id===match[1] || typeof m.getAttributeNode !=="undefined" && m.getAttributeNode("id").nodeValue===match[1] ? [m] : undefined : [];
}};
Expr.filter.ID=function(elem, match){
var node=typeof elem.getAttributeNode !=="undefined" && elem.getAttributeNode("id");
return elem.nodeType===1 && node && node.nodeValue===match;
};
}
root.removeChild( form );
root=form=null; 
})();
(function(){
var div=document.createElement("div");
div.appendChild( document.createComment("") );
if ( div.getElementsByTagName("*").length > 0 ){
Expr.find.TAG=function(match, context){
var results=context.getElementsByTagName(match[1]);
if ( match[1]==="*" ){
var tmp=[];
for ( var i=0; results[i]; i++){
if ( results[i].nodeType===1 ){
tmp.push( results[i] );
}}
results=tmp;
}
return results;
};
}
div.innerHTML="<a href='#'></a>";
if ( div.firstChild && typeof div.firstChild.getAttribute !=="undefined" &&
div.firstChild.getAttribute("href") !=="#" ){
Expr.attrHandle.href=function(elem){
return elem.getAttribute("href", 2);
};
}
div=null; 
})();
if ( document.querySelectorAll ) (function(){
var oldSizzle=Sizzle, div=document.createElement("div");
div.innerHTML="<p class='TEST'></p>";
if ( div.querySelectorAll && div.querySelectorAll(".TEST").length===0 ){
return;
}
Sizzle=function(query, context, extra, seed){
context=context || document;
if ( !seed && context.nodeType===9 && !isXML(context) ){
try{
return makeArray( context.querySelectorAll(query), extra );
}catch(e){}}
return oldSizzle(query, context, extra, seed);
};
for ( var prop in oldSizzle ){
Sizzle[ prop ]=oldSizzle[ prop ];
}
div=null; 
})();
if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
var div=document.createElement("div");
div.innerHTML="<div class='test e'></div><div class='test'></div>";
if ( div.getElementsByClassName("e").length===0 )
return;
div.lastChild.className="e";
if ( div.getElementsByClassName("e").length===1 )
return;
Expr.order.splice(1, 0, "CLASS");
Expr.find.CLASS=function(match, context, isXML){
if ( typeof context.getElementsByClassName !=="undefined" && !isXML ){
return context.getElementsByClassName(match[1]);
}};
div=null; 
})();
function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ){
var sibDir=dir=="previousSibling" && !isXML;
for ( var i=0, l=checkSet.length; i < l; i++){
var elem=checkSet[i];
if ( elem ){
if ( sibDir && elem.nodeType===1 ){
elem.sizcache=doneName;
elem.sizset=i;
}
elem=elem[dir];
var match=false;
while ( elem ){
if ( elem.sizcache===doneName ){
match=checkSet[elem.sizset];
break;
}
if ( elem.nodeType===1 && !isXML ){
elem.sizcache=doneName;
elem.sizset=i;
}
if ( elem.nodeName===cur ){
match=elem;
break;
}
elem=elem[dir];
}
checkSet[i]=match;
}}}
function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ){
var sibDir=dir=="previousSibling" && !isXML;
for ( var i=0, l=checkSet.length; i < l; i++){
var elem=checkSet[i];
if ( elem ){
if ( sibDir && elem.nodeType===1 ){
elem.sizcache=doneName;
elem.sizset=i;
}
elem=elem[dir];
var match=false;
while ( elem ){
if ( elem.sizcache===doneName ){
match=checkSet[elem.sizset];
break;
}
if ( elem.nodeType===1 ){
if ( !isXML ){
elem.sizcache=doneName;
elem.sizset=i;
}
if ( typeof cur !=="string" ){
if ( elem===cur ){
match=true;
break;
}}else if ( Sizzle.filter( cur, [elem] ).length > 0 ){
match=elem;
break;
}}
elem=elem[dir];
}
checkSet[i]=match;
}}}
var contains=document.compareDocumentPosition ?  function(a, b){
return a.compareDocumentPosition(b) & 16;
}: function(a, b){
return a !==b && (a.contains ? a.contains(b) : true);
};
var isXML=function(elem){
return elem.nodeType===9 && elem.documentElement.nodeName !=="HTML" ||
!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !=="HTML";
};
var posProcess=function(selector, context){
var tmpSet=[], later="", match,
root=context.nodeType ? [context] : context;
while ( (match=Expr.match.PSEUDO.exec( selector )) ){
later+=match[0];
selector=selector.replace( Expr.match.PSEUDO, "" );
}
selector=Expr.relative[selector] ? selector+"*" : selector;
for ( var i=0, l=root.length; i < l; i++){
Sizzle( selector, root[i], tmpSet );
}
return Sizzle.filter( later, tmpSet );
};
window.Sizzle=Sizzle;
})();
;(function(engine){
var extendElements=Prototype.Selector.extendElements;
function select(selector, scope){
return extendElements(engine(selector, scope || document));
}
function match(element, selector){
return engine.matches(selector, [element]).length==1;
}
Prototype.Selector.engine=engine;
Prototype.Selector.select=select;
Prototype.Selector.match=match;
})(Sizzle);
window.Sizzle=Prototype._original_property;
delete Prototype._original_property;
var Form={
reset: function(form){
form=$(form);
form.reset();
return form;
},
serializeElements: function(elements, options){
if (typeof options !='object') options={hash: !!options};
else if (Object.isUndefined(options.hash)) options.hash=true;
var key, value, submitted=false, submit=options.submit, accumulator, initial;
if (options.hash){
initial={};
accumulator=function(result, key, value){
if (key in result){
if (!Object.isArray(result[key])) result[key]=[result[key]];
result[key].push(value);
}else result[key]=value;
return result;
};
}else{
initial='';
accumulator=function(result, key, value){
return result+(result ? '&' :'')+encodeURIComponent(key)+'='+encodeURIComponent(value);
}}
return elements.inject(initial, function(result, element){
if (!element.disabled && element.name){
key=element.name; value=$(element).getValue();
if (value !=null && element.type !='file' && (element.type !='submit' || (!submitted &&
submit !==false && (!submit || key==submit) && (submitted=true)))){
result=accumulator(result, key, value);
}}
return result;
});
}};
Form.Methods={
serialize: function(form, options){
return Form.serializeElements(Form.getElements(form), options);
},
getElements: function(form){
var elements=$(form).getElementsByTagName('*'),
element,
arr=[ ],
serializers=Form.Element.Serializers;
for (var i=0; element=elements[i]; i++){
arr.push(element);
}
return arr.inject([], function(elements, child){
if (serializers[child.tagName.toLowerCase()])
elements.push(Element.extend(child));
return elements;
})
},
getInputs: function(form, typeName, name){
form=$(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)$/i.test(element.tagName);
});
},
focusFirstElement: function(form){
form=$(form);
var element=form.findFirstElement();
if (element) element.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)$/i.test(element.type))))
element.select();
}catch (e){}
return element;
},
disable: function(element){
element=$(element);
element.disabled=true;
return element;
},
enable: function(element){
element=$(element);
element.disabled=false;
return element;
}};
/*--------------------------------------------------------------------------*/
var Field=Form.Element;
var $F=Form.Element.Methods.getValue;
/*--------------------------------------------------------------------------*/
Form.Element.Serializers=(function(){
function input(element, value){
switch (element.type.toLowerCase()){
case 'checkbox':
case 'radio':
return inputSelector(element, value);
default:
return valueSelector(element, value);
}}
function inputSelector(element, value){
if (Object.isUndefined(value))
return element.checked ? element.value : null;
else element.checked=!!value;
}
function valueSelector(element, value){
if (Object.isUndefined(value)) return element.value;
else element.value=value;
}
function select(element, value){
if (Object.isUndefined(value))
return (element.type==='select-one' ? selectOne : selectMany)(element);
var opt, currentValue, single=!Object.isArray(value);
for (var i=0, length=element.length; i < length; i++){
opt=element.options[i];
currentValue=this.optionValue(opt);
if (single){
if (currentValue==value){
opt.selected=true;
return;
}}
else opt.selected=value.include(currentValue);
}}
function selectOne(element){
var index=element.selectedIndex;
return index >=0 ? optionValue(element.options[index]) : null;
}
function selectMany(element){
var values, length=element.length;
if (!length) return null;
for (var i=0, values=[]; i < length; i++){
var opt=element.options[i];
if (opt.selected) values.push(optionValue(opt));
}
return values;
}
function optionValue(opt){
return Element.hasAttribute(opt, 'value') ? opt.value : opt.text;
}
return{
input:         input,
inputSelector: inputSelector,
textarea:      valueSelector,
select:        select,
selectOne:     selectOne,
selectMany:    selectMany,
optionValue:   optionValue,
button:        valueSelector
};
})();
/*--------------------------------------------------------------------------*/
Abstract.TimedObserver=Class.create(PeriodicalExecuter,{
initialize: function($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);
}});
(function(){
var 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:{}};
var docEl=document.documentElement;
var MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED='onmouseenter' in docEl
&& 'onmouseleave' in docEl;
var isIELegacyEvent=function(event){return false;};
if (window.attachEvent){
if (window.addEventListener){
isIELegacyEvent=function(event){
return !(event instanceof window.Event);
};
}else{
isIELegacyEvent=function(event){return true;};
}}
var _isButton;
function _isButtonForDOMEvents(event, code){
return event.which ? (event.which===code+1) : (event.button===code);
}
var legacyButtonMap={0: 1, 1: 4, 2: 2};
function _isButtonForLegacyEvents(event, code){
return event.button===legacyButtonMap[code];
}
function _isButtonForWebKit(event, code){
switch (code){
case 0: return event.which==1 && !event.metaKey;
case 1: return event.which==2 || (event.which==1 && event.metaKey);
case 2: return event.which==3;
default: return false;
}}
if (window.attachEvent){
if (!window.addEventListener){
_isButton=_isButtonForLegacyEvents;
}else{
_isButton=function(event, code){
return isIELegacyEvent(event) ? _isButtonForLegacyEvents(event, code) :
_isButtonForDOMEvents(event, code);
}}}else if (Prototype.Browser.WebKit){
_isButton=_isButtonForWebKit;
}else{
_isButton=_isButtonForDOMEvents;
}
function isLeftClick(event){return _isButton(event, 0)}
function isMiddleClick(event){return _isButton(event, 1)}
function isRightClick(event){return _isButton(event, 2)}
function element(event){
event=Event.extend(event);
var node=event.target, type=event.type,
currentTarget=event.currentTarget;
if (currentTarget && currentTarget.tagName){
if (type==='load' || type==='error' ||
(type==='click' && currentTarget.tagName.toLowerCase()==='input'
&& currentTarget.type==='radio'))
node=currentTarget;
}
if (node.nodeType==Node.TEXT_NODE)
node=node.parentNode;
return Element.extend(node);
}
function findElement(event, expression){
var element=Event.element(event);
if (!expression) return element;
while (element){
if (Object.isElement(element) && Prototype.Selector.match(element, expression)){
return Element.extend(element);
}
element=element.parentNode;
}}
function pointer(event){
return{x: pointerX(event), y: pointerY(event)};
}
function pointerX(event){
var docElement=document.documentElement,
body=document.body ||{scrollLeft: 0};
return event.pageX || (event.clientX+
(docElement.scrollLeft || body.scrollLeft) -
(docElement.clientLeft || 0));
}
function pointerY(event){
var docElement=document.documentElement,
body=document.body ||{scrollTop: 0};
return  event.pageY || (event.clientY+
(docElement.scrollTop || body.scrollTop) -
(docElement.clientTop || 0));
}
function stop(event){
Event.extend(event);
event.preventDefault();
event.stopPropagation();
event.stopped=true;
}
Event.Methods={
isLeftClick:   isLeftClick,
isMiddleClick: isMiddleClick,
isRightClick:  isRightClick,
element:     element,
findElement: findElement,
pointer:  pointer,
pointerX: pointerX,
pointerY: pointerY,
stop: stop
};
var methods=Object.keys(Event.Methods).inject({}, function(m, name){
m[name]=Event.Methods[name].methodize();
return m;
});
if (window.attachEvent){
function _relatedTarget(event){
var element;
switch (event.type){
case 'mouseover':
case 'mouseenter':
element=event.fromElement;
break;
case 'mouseout':
case 'mouseleave':
element=event.toElement;
break;
default:
return null;
}
return Element.extend(element);
}
var additionalMethods={
stopPropagation: function(){this.cancelBubble=true},
preventDefault:  function(){this.returnValue=false},
inspect: function(){return '[object Event]'}};
Event.extend=function(event, element){
if (!event) return false;
if (!isIELegacyEvent(event)) return event;
if (event._extendedByPrototype) return event;
event._extendedByPrototype=Prototype.emptyFunction;
var pointer=Event.pointer(event);
Object.extend(event,{
target: event.srcElement || element,
relatedTarget: _relatedTarget(event),
pageX:  pointer.x,
pageY:  pointer.y
});
Object.extend(event, methods);
Object.extend(event, additionalMethods);
return event;
};
}else{
Event.extend=Prototype.K;
}
if (window.addEventListener){
Event.prototype=window.Event.prototype || document.createEvent('HTMLEvents').__proto__;
Object.extend(Event.prototype, methods);
}
function _createResponder(element, eventName, handler){
var registry=Element.retrieve(element, 'prototype_event_registry');
if (Object.isUndefined(registry)){
CACHE.push(element);
registry=Element.retrieve(element, 'prototype_event_registry', $H());
}
var respondersForEvent=registry.get(eventName);
if (Object.isUndefined(respondersForEvent)){
respondersForEvent=[];
registry.set(eventName, respondersForEvent);
}
if (respondersForEvent.pluck('handler').include(handler)) return false;
var responder;
if (eventName.include(":")){
responder=function(event){
if (Object.isUndefined(event.eventName))
return false;
if (event.eventName !==eventName)
return false;
Event.extend(event, element);
handler.call(element, event);
};
}else{
if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED &&
(eventName==="mouseenter" || eventName==="mouseleave")){
if (eventName==="mouseenter" || eventName==="mouseleave"){
responder=function(event){
Event.extend(event, element);
var parent=event.relatedTarget;
while (parent && parent !==element){
try{parent=parent.parentNode;}
catch(e){parent=element;}}
if (parent===element) return;
handler.call(element, event);
};
}}else{
responder=function(event){
Event.extend(event, element);
handler.call(element, event);
};
}}
responder.handler=handler;
respondersForEvent.push(responder);
return responder;
}
function _destroyCache(){
for (var i=0, length=CACHE.length; i < length; i++){
Event.stopObserving(CACHE[i]);
CACHE[i]=null;
}}
var CACHE=[];
if (Prototype.Browser.IE)
window.attachEvent('onunload', _destroyCache);
if (Prototype.Browser.WebKit)
window.addEventListener('unload', Prototype.emptyFunction, false);
var _getDOMEventName=Prototype.K,
translations={mouseenter: "mouseover", mouseleave: "mouseout"};
if (!MOUSEENTER_MOUSELEAVE_EVENTS_SUPPORTED){
_getDOMEventName=function(eventName){
return (translations[eventName] || eventName);
};
}
function observe(element, eventName, handler){
element=$(element);
var responder=_createResponder(element, eventName, handler);
if (!responder) return element;
if (eventName.include(':')){
if (element.addEventListener)
element.addEventListener("dataavailable", responder, false);
else{
element.attachEvent("ondataavailable", responder);
element.attachEvent("onlosecapture", responder);
}}else{
var actualEventName=_getDOMEventName(eventName);
if (element.addEventListener)
element.addEventListener(actualEventName, responder, false);
else
element.attachEvent("on"+actualEventName, responder);
}
return element;
}
function stopObserving(element, eventName, handler){
element=$(element);
var registry=Element.retrieve(element, 'prototype_event_registry');
if (!registry) return element;
if (!eventName){
registry.each( function(pair){
var eventName=pair.key;
stopObserving(element, eventName);
});
return element;
}
var responders=registry.get(eventName);
if (!responders) return element;
if (!handler){
responders.each(function(r){
stopObserving(element, eventName, r.handler);
});
return element;
}
var i=responders.length, responder;
while (i--){
if (responders[i].handler===handler){
responder=responders[i];
break;
}}
if (!responder) return element;
if (eventName.include(':')){
if (element.removeEventListener)
element.removeEventListener("dataavailable", responder, false);
else{
element.detachEvent("ondataavailable", responder);
element.detachEvent("onlosecapture", responder);
}}else{
var actualEventName=_getDOMEventName(eventName);
if (element.removeEventListener)
element.removeEventListener(actualEventName, responder, false);
else
element.detachEvent('on'+actualEventName, responder);
}
registry.set(eventName, responders.without(responder));
return element;
}
function fire(element, eventName, memo, bubble){
element=$(element);
if (Object.isUndefined(bubble))
bubble=true;
if (element==document && document.createEvent && !element.dispatchEvent)
element=document.documentElement;
var event;
if (document.createEvent){
event=document.createEvent('HTMLEvents');
event.initEvent('dataavailable', bubble, true);
}else{
event=document.createEventObject();
event.eventType=bubble ? 'ondataavailable' :'onlosecapture';
}
event.eventName=eventName;
event.memo=memo ||{};
if (document.createEvent)
element.dispatchEvent(event);
else
element.fireEvent(event.eventType, event);
return Event.extend(event);
}
Event.Handler=Class.create({
initialize: function(element, eventName, selector, callback){
this.element=$(element);
this.eventName=eventName;
this.selector=selector;
this.callback=callback;
this.handler=this.handleEvent.bind(this);
},
start: function(){
Event.observe(this.element, this.eventName, this.handler);
return this;
},
stop: function(){
Event.stopObserving(this.element, this.eventName, this.handler);
return this;
},
handleEvent: function(event){
var element=Event.findElement(event, this.selector);
if (element) this.callback.call(this.element, event, element);
}});
function on(element, eventName, selector, callback){
element=$(element);
if (Object.isFunction(selector) && Object.isUndefined(callback)){
callback=selector, selector=null;
}
return new Event.Handler(element, eventName, selector, callback).start();
}
Object.extend(Event, Event.Methods);
Object.extend(Event,{
fire:          fire,
observe:       observe,
stopObserving: stopObserving,
on:            on
});
Element.addMethods({
fire:          fire,
observe:       observe,
stopObserving: stopObserving,
on:            on
});
Object.extend(document,{
fire:          fire.methodize(),
observe:       observe.methodize(),
stopObserving: stopObserving.methodize(),
on:            on.methodize(),
loaded:        false
});
if (window.Event) Object.extend(window.Event, Event);
else window.Event=Event;
})();
(function(){
var timer;
function fireContentLoadedEvent(){
if (document.loaded) return;
if (timer) window.clearTimeout(timer);
document.loaded=true;
document.fire('dom:loaded');
}
function checkReadyState(){
if (document.readyState==='complete'){
document.stopObserving('readystatechange', checkReadyState);
fireContentLoadedEvent();
}}
function pollDoScroll(){
try{document.documentElement.doScroll('left');}
catch(e){
timer=pollDoScroll.defer();
return;
}
fireContentLoadedEvent();
}
if (document.addEventListener){
document.addEventListener('DOMContentLoaded', fireContentLoadedEvent, false);
}else{
document.observe('readystatechange', checkReadyState);
if (window==top)
timer=pollDoScroll.defer();
}
Event.observe(window, 'load', fireContentLoadedEvent);
})();
Element.addMethods();
/*------------------------------- 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');
var Position={
includeScrollOffsets: false,
prepare: function(){
this.deltaX=window.pageXOffset
|| document.documentElement.scrollLeft
|| document.body.scrollLeft
|| 0;
this.deltaY=window.pageYOffset
|| document.documentElement.scrollTop
|| document.body.scrollTop
|| 0;
},
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);
},
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;
},
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);
/*--------------------------------------------------------------------------*/
(function(){
window.Selector=Class.create({
initialize: function(expression){
this.expression=expression.strip();
},
findElements: function(rootElement){
return Prototype.Selector.select(this.expression, rootElement);
},
match: function(element){
return Prototype.Selector.match(element, this.expression);
},
toString: function(){
return this.expression;
},
inspect: function(){
return "#<Selector: "+this.expression+">";
}});
Object.extend(Selector,{
matchElements: function(elements, expression){
var match=Prototype.Selector.match,
results=[];
for (var i=0, length=elements.length; i < length; i++){
var element=elements[i];
if (match(element, expression)){
results.push(Element.extend(element));
}}
return results;
},
findElement: function(elements, expression, index){
index=index || 0;
var matchIndex=0, element;
for (var i=0, length=elements.length; i < length; i++){
element=elements[i];
if (Prototype.Selector.match(element, expression) && index===matchIndex++){
return Element.extend(element);
}}},
findChildElements: function(element, expressions){
var selector=expressions.toArray().join(', ');
return Prototype.Selector.select(selector, element || document);
}});
})();