function MakeVisible(divName)
{
	var isNS = (navigator.appName == "Netscape");
	//HandleLevels(document.all('menuLevel1').value);
	
	if (isNS) {
		var prevMnu;
		
		prevMnu = document.frmNAme.menuName.value;
		if (prevMnu != "") 
		{
			document[prevMnu].visibility = "hidden";
		}
		if(divName==""){

		}
		else
		document[divName].visibility = "visible";
		document.frmNAme.menuName.value =divName;	
	}
	 else{
	
		var prevMnu;
		prevMnu = document.all("menuName").value;
		if (prevMnu != "") 
		{
			document.all(prevMnu).style.visibility = "hidden";
		}
		if(divName==""){

		}
		else
		document.all(divName).style.visibility = "visible";
		document.all("menuName").value =divName;	
	}
}