var gradientshadow={};
gradientshadow.depth=4; //Depth of shadow in pixels
gradientshadow.containers=[];

gradientshadow.create=function(){
var class_name="";
var a = document.all ? document.all : document.getElementsByTagName("DIV");
for (var i = 0;i < a.length;i++) {
	class_name=a[i].className;
	class_name=String(class_name).substr(0,7);
	if(class_name=="shadow ") {
		for (var x=0; x<gradientshadow.depth; x++){
			var newSd = document.createElement("DIV");
			newSd.className = "shadow_inner";
			newSd.id="shadow"+gradientshadow.containers.length+"_"+x; //Each shadow DIV has an id of "shadowL_X" (L=index of target element, X=index of shadow (depth) 
			if (a[i].getAttribute("rel"))
				newSd.style.background = a[i].getAttribute("rel");
			else
				newSd.style.background = "black"; //default shadow color if none specified
			document.body.appendChild(newSd);
		}
	gradientshadow.containers[gradientshadow.containers.length]=a[i];
	}
}
gradientshadow.position()
window.onresize=function(){
	gradientshadow.position();
}
}

gradientshadow.position=function(){
if (gradientshadow.containers.length>0){
	for (var i=0; i<gradientshadow.containers.length; i++){
		for (var x=0; x<gradientshadow.depth; x++){
  		var shadowdiv=document.getElementById("shadow"+i+"_"+x);
			shadowdiv.style.width = gradientshadow.containers[i].offsetWidth + "px";
			shadowdiv.style.height = gradientshadow.containers[i].offsetHeight + "px";
			shadowdiv.style.left = gradientshadow.containers[i].offsetLeft + x + "px";
			shadowdiv.style.top = gradientshadow.containers[i].offsetTop + x + "px";
		}
	}
}
}

if (window.addEventListener)
window.addEventListener("load", gradientshadow.create, false);
else if (window.attachEvent)
window.attachEvent("onload", gradientshadow.create);
else if (document.getElementById)
window.onload=gradientshadow.create;