<!--
//=========================== 'BW' ===========================
function findObj(n, doc){
  var i, obj;
  if(!doc) doc = document;
  if(!n || n == null) return null;
  if(doc.all && (obj=doc.all[n])!=null) return obj;
  if(document.getElementById && (obj=document.getElementById(n))!=null) return obj;
  if(doc.layers) for(i in doc.layers) if((obj=findObj(n,doc.layers[i].document))!=null) return obj;
  for(i in doc.forms) if((obj=doc.forms[i][n])!=null) return obj;
  for(i in doc.images) if((obj=doc.images[n])!=null) return obj;
  return null;
}
// end 'getObjectBW' ---------------

//=========================== 'stile' ========================
function onVD(){
	var elem_id = null;
	this.roll = function(id, path){ if((elem_id = findObj(id))!= null) elem_id.src = path;}
	this.visibili = function(id, vis){
		if((elem_id = findObj(id))!= null && elem_id.style){
			if(vis) elem_id.style.visibility = vis;
			else elem_id.style.visibility = elem_id.style.visibility =="hidden" ? "visible" : "hidden";
		}
	}
	this.display = function(id, vis){
		if((elem_id = findObj(id))!= null && elem_id.style){
			if(vis) elem_id.style.display = vis;
			else elem_id.style.display = elem_id.style.display =="" ? "none" : "";
		}
	}
}
var ona = new onVD();
//--------------
//-->