function addLoadEvent(func){
	var oldonload = window.onload;
	if (typeof window.onload != 'function'){
	window.onload = func;
	} else {
		window.onload = function(){
		oldonload();
		func();
		}
	}
}
	
function insertAfter(newElement, targetElement){
	var parent = targetElement.parentNode;
	if (parent.lastChild == targetElement){
	parent.appendChild(newElement);
	} else {
	parent.insertBefore(newElement, targetElement.nextSibling);
	}
}
	
function addClass(element,value){	
	if(!element.className) {
		element.className = value;
	} else {
		newClassName = element.className;
		newClassName += " ";
		newClassName += value;
		element.className = newClassName;
	}
}

function showPic(img_name){
	var temp=document.getElementById("bannerContainer");
	temp.style.background="url('"+img_name+"') no-repeat";
	return false;
}