NS4 = (document.layers);
   IE4 = (document.all);
   ver4 = (NS4 || IE4);   
   isMac = (navigator.appVersion.indexOf("Mac") != -1);
   isMenu = (NS4 || (IE4 && !isMac));
	    
   function popUp(){return;};
   function popDown(){return;};
   function startIt(){return;}
   if (!ver4) event = null;