/*==========================================================//
	Background Image Cache
//==========================================================*/
try 
{
  document.execCommand("BackgroundImageCache", false, true);
} catch(err) {}

/*==========================================================//
	Listener for the page to fully load
//==========================================================*/
function addLoadListener(fn)
{
	if(typeof window.addEventListener != 'undefined')
	{
		window.addEventListener('load',fn,false);
	}
	else if (typeof document.addEventListener != 'undefined')
	{
		document.addEventListener('load', fn, false);
	}
	else if (typeof window.attachEvent != 'undefined')
	{
		window.attachEvent('onload', fn);
	}
	else
	{
		var oldfn = window.onload;
		if(typeof window.onload != 'function')
		{
			window.onload = fn;
		}
		else
		{
			window.onload = function()
			{
				oldfn();
				fn();
			}
		}
	}
}

/*==========================================================//
	Add listeners on objects (multi-browser) 
//==========================================================*/
function attachEventListener(target, eventType, functionRef, capture){
	if(typeof target.addEventListener != "undefined"){ 
		target.addEventListener(eventType, functionRef, capture);
	}else if (typeof target.attachEvent != "undefined"){
		target.attachEvent("on" + eventType, functionRef);
	}else{
		eventType = "on" + eventType;
		if(typeof target [eventType] == "function"){
			var oldListener = target[eventType];
			target[eventType] = function(){
				oldListener();
				return functionRef;
			}
		}
		else {
			target[eventType] = functionRef;
		}
		
	}
	return true;
}

/*==========================================================//
	Get elements by class name (multi-browser)
//==========================================================*/
function getElementsByClassName(oElm, strTagName, oClassNames){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var arrRegExpClassNames = new Array();
	if(typeof oClassNames == "object"){
		for(var i=0; i<oClassNames.length; i++){
			arrRegExpClassNames.push(new RegExp("(^|\s)" + oClassNames[i].replace(/-/g, "\-") + "(\s|$)"));
		}
	}
	else{
		arrRegExpClassNames.push(new RegExp("(^|\s)" + oClassNames.replace(/-/g, "\-") + "(\s|$)"));
	}
	var oElement;
	var bMatchesAll;
	for(var j=0; j<arrElements.length; j++){
		oElement = arrElements[j];
		bMatchesAll = true;
		for(var k=0; k<arrRegExpClassNames.length; k++){
			if(!arrRegExpClassNames[k].test(oElement.className)){
				bMatchesAll = false;
				break;
			}
		}
		if(bMatchesAll){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}


/*==========================================================//
	Get variable from query string
//==========================================================*/
function getQueryVariable(variable) {
  	var query = window.location.search.substring(1);
  	var vars = query.split("&");
  	for (var i=0;i<vars.length;i++) {
		var pair = vars[i].split("=");
    	if (pair[0] == variable) {
     	 	return pair[1];
    	}
  	}
	temp = "";
  	return temp;
}