function mnu_expand(level,objid,obj){
	if(document.getElementById){
		if(document.documentElement){
			var tmp = navigator.userAgent+"";
			tmp = tmp.toUpperCase();
			/* if(tmp.indexOf("GECKO")>1){
			}
			else{*/
				var canvas=document.getElementById("sub" + level + objid);
				if(canvas){
					canvas.style.display=(canvas.style.display=="block")?"none":"block";
					return(false);
				/*}*/
			}
		}
	}
	return(true);
}