var isDOM = (document.getElementById ? true : false); 
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var popTimer = 0;
var DivVisible = 0 ;

function getRef(id) 
{	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}
function getSty(id) 
{	return (isNS4 ? getRef(id) : getRef(id).style);
} 
function EnsenyaMenu(IdDiv,top,left)
{	clearTimeout (popTimer) ;
	if (DivVisible != IdDiv && DivVisible != 0)
		AmagaFinalment(DivVisible) ;
	var refDiv, refRP ;
	refDiv = getSty ("DIV" + IdDiv.toString()) ;
	if (top != 0) 
	{
		refDiv.top = top ;
		refDiv.left = left ;
	}
	refDiv.visibility = 'visible' ;
	DivVisible = IdDiv ;
}
function AmagaMenu(IdDiv)
{	popTimer = setTimeout('AmagaFinalment(' + IdDiv + ')', 250);
}
function AmagaFinalment(IdDiv)
{	var refDiv = getSty ("DIV" + IdDiv.toString()) ;
	refDiv.visibility = 'hidden' ; 
	DivVisible = 0 ;
}