function WG_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=AQ_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function WG_calcImageTop(imageName){
	var tmpImg;
	var objImg = WG_findObj(imageName);
	var tmpTop;
	tmpTop = 0;
	while(objImg)
	{
		tmpTop += objImg.offsetTop;
		objImg = objImg.offsetParent;	 
	}
	return tmpTop;
}