var browserIE=(navigator.userAgent.toLowerCase().indexOf('msie')!=-1);
var mac=(navigator.userAgent.toLowerCase().indexOf('macintosh')!=-1);
var safari=(navigator.userAgent.toLowerCase().indexOf('safari')!=-1);
var chrome=(navigator.userAgent.toLowerCase().indexOf('chrome')!=-1);
//if(safari){
//	alert("Safari and Google Chrome cannot render scrolling dhtml games correctly. If you are playing a scrolling game, please consider using Firefox or Internet Explorer.");
//}