var gradientshadow={}
gradientshadow.depth=6 //Depth of shadow in pixels
gradientshadow.containers=[]
 
gradientshadow.create=function(){
        var a = document.all ? document.all : document.getElementsByTagName('*')
        for (var i = 0;i < a.length;i++) {
        if (a[i].className == "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=2; x<gradientshadow.depth; x++){
                var shadowdiv=document.getElementById("shadow"+i+"_"+x)
                        shadowdiv.style.width =  gradientshadow.depth+gradientshadow.containers[i].offsetWidth + x - 5 + "px"
                        shadowdiv.style.height = (gradientshadow.depth-2)+gradientshadow.containers[i].offsetHeight + x - 3 + "px"
                        shadowdiv.style.left = (-1*gradientshadow.depth) + gradientshadow.containers[i].offsetLeft + x - 0 + "px"
                        shadowdiv.style.top = gradientshadow.containers[i].offsetTop + x - 5 + "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