var ie = (document.all)? true:false;
var ns = (document.layers)? true:false;
var ns6 = (parseInt(navigator.appVersion) >= 5 && navigator.userAgent.indexOf["Netscape6"] != -1)? true:false;

function show(divID) {
	var id = document.getElementById(divID);
          	if (ns) {
     	  if(id.visibility)
     	   id.visibility = "hidden";
     	  else
     	   id.visibility = "visible";
	} 
	else
	{
	 if(id.style.display=="none")
	   id.style.display = "";	
	 else
	   id.style.display = "none";
	}
}