var IE = (navigator.appName == "Microsoft Internet Explorer") ? 1 : 0; 
var NS = (navigator.appName == "Netscape") ? 1 : 0; 

var tmp=null;
var check=false;
var tempX=0;

	function on(p) {
		if(tmp!=null)
		document.getElementById(tmp).style.visibility="hidden";
		p=document.getElementById("di"+p);
		p.style.visibility='visible';
		tmp=p.id;
	}	                                               
		
	function off(p) {
		p=document.getElementById("di"+p);
		p.style.visibility='hidden';
	}