/**
 * util.js 
 * by Garrett Smith 
 * Provides functionality for working nodeLists.
 */
Browser=new function(){this.isSupported=function(){return typeof document.getElementsByTagName!="undefined"&&typeof document.getElementById!="undefined";};var ua=navigator.userAgent;var OMNI=ua.indexOf("Omni")>0;this.OP5=/Opera [56]/.test(ua);this.OP7=/Opera [7]/.test(ua);this.MAC=/Mac/.test(ua);if(!this.OP5&&!OMNI){this.IE5=/MSIE 5/.test(ua);this.IE5_0=/MSIE 5.0/.test(ua);this.MOZ=/Gecko/.test(ua);this.MAC_IE5=this.MAC&&this.IE5;this.IE6=/MSIE 6/.test(ua);this.KONQUEROR=/Konqueror/.test(ua);}this.id={};for(var x in this)this.id[x]=this[x];};var px="px";TokenizedExps={};function getTokenizedExp(token,flag){var x=TokenizedExps[token];if(!x)
x=TokenizedExps[token]=new RegExp("(^|\\s)"+token+"($|\\s)",flag);return x;}function hasToken(s,token){return getTokenizedExp(token,"").test(s);};function getChildNodesWithClass(parent,klass){var collection=parent.childNodes;var returnedCollection=[];var exp=getTokenizedExp(klass,"");for(var i=0,counter=0;i<collection.length;i++)
if(exp.test(collection[i].className))
returnedCollection[counter++]=collection[i];return returnedCollection;}function getElementsWithClass(parent,tagName,klass){var returnedCollection=[];try{var exp=getTokenizedExp(klass,"");var collection=(tagName=="*"&&parent.all)?parent.all : parent.getElementsByTagName(tagName);for(var i=0,counter=0;i<collection.length;i++){if(exp.test(collection[i].className))
returnedCollection[counter++]=collection[i];}return returnedCollection;}catch(x){alert("parent="+parent+" tagName="+tagName+" klass="+klass);throw x;}}function get_elements_with_class_from_classList(el,tagName,classList){var returnedCollection=new Array(0);var collection=(tagName=="*"&&el.all)?el.all : el.getElementsByTagName(tagName);var exps=[];for(var i=0;i<classList.length;i++)
exps[i]=getTokenizedExp(classList[i],"");for(var j=0,coLen=collection.length;j<coLen;j++){kloop: for(var k=0;k<classList.length;k++){if(exps[k].test(collection[j].className)){returnedCollection[returnedCollection.length]=collection[j];break kloop;}}}return returnedCollection;}function findAncestorWithClass(el,klass){if(el==null)
return null;var exp=getTokenizedExp(klass,"");for(var parent=el.parentNode;parent!=null;){if(exp.test(parent.className) )
return parent;parent=parent.parentNode;}return null;}function getDescendantById(parent,id){var childNodes=parent.all?parent.all : parent.getElementsByTagName("*");for(var i=0,len=childNodes.length;i<len;i++)
if(childNodes[i].id==id)
return childNodes[i];return null;}function removeClass(el,klass){el.className=el.className.replace(getTokenizedExp(klass,"g")," ").normalize();}function repaintFix(el){el.style.visibility='hidden';el.style.visibility='visible';}var trimExp=/^\s+|\s+$/g;String.prototype.trim=function(){return this.replace(trimExp,"");};var wsMultExp=/\s\s+/g;String.prototype.normalize=function(){return this.trim().replace(wsMultExp," ");};var extExp=/(\.(.[^\.]+)$)/;if(!Array.prototype.unshift)
Array.prototype.unshift=function(){this.reverse();for(var i=arguments.length-1;i>-1;i--)
this[this.length]=arguments[i];this.reverse();return this.length;};