function MM_findObj(n, d) { //v4.01
  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=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

//show hide layers
function DLD_ChangeStatus(aLayer){
	if ((objLayer=MM_findObj(aLayer))!=null) { 
		if (objLayer.style) {objLayer = objLayer.style; }
		objLayer.display = (objLayer.display =='none') ? '':'none'; 
	}
}
function DLD_ChangeStyle(aObj){
	aObj.className = (aObj.className =='selected') ? '':'selected'; 
}