var gradientshadowfirma={}
gradientshadowfirma.depth=10 //Depth of shadow in pixels
gradientshadowfirma.containers=[]

gradientshadowfirma.create=function(){
var a = document.all ? document.all : document.getElementsByTagName('*')
for (var i = 0;i < a.length;i++) {
   if (a[i].className == "shadowfirma") {
      for (var x=0; x<gradientshadowfirma.depth; x++){
         var newSd = document.createElement("DIV")
         newSd.className = "shadowfirma_inner"
         newSd.id="shadowfirma"+gradientshadowfirma.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)
      }
   gradientshadowfirma.containers[gradientshadowfirma.containers.length]=a[i]
   }
}
gradientshadowfirma.position()
window.onresize=function(){
   gradientshadowfirma.position()
}
}

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

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