// 2001.01.28 - John Dalsgaard:	NS6 treated as non-NS4 and as IE5.
NS4 = (document.layers) && !(document.getElementById);
IE4 = (document.all);
ver4 = (NS4 || IE4);
IE5 = (IE4 && navigator.appVersion.indexOf("5.")!=-1) || (document.getElementById);
isMac = (navigator.appVersion.indexOf("Mac") != -1);
IE45  = (IE4 && isMac && navigator.appVersion.indexOf("4.5")!=-1);
isMenu = ver4;