NS4 = (document.layers);
IE4 = (document.all);
ver4 = (NS4 || IE4);
var sAppVersion = navigator.appVersion
isIE4 = (IE4 && sAppVersion.indexOf("4.")!=-1);
IE5 = (IE4 && sAppVersion.indexOf("5.")!=-1);
isMac = (sAppVersion.indexOf("Mac") != -1);

isMenu = (NS4 || (IE4 && !isMac) || (IE5 && isMac));
function popUp(){return}; 
function popDown(){return}; 
function LetsGo(){return}; 
if (!ver4) event = null;