var Mac = navigator.appVersion.indexOf('Mac',0) != -1;

var Win = navigator.appVersion.indexOf('Win',0) != -1;

var NN = navigator.appName.indexOf("Netscape",0) != -1;

var IE = navigator.appName.indexOf("Microsoft Internet Explorer",0) != -1;

var IE45Mac = navigator.appVersion.indexOf('MSIE 4.5',0) != -1 && navigator.appVersion.indexOf('Mac',0) != -1

var VER = navigator.appVersion.charAt(0); if(navigator.appVersion.indexOf('MSIE 5.0',0) != -1){VER++;}

var Moz = navigator.userAgent.indexOf("Gecko") != -1;

var IE5Mac = ((Mac && navigator.appVersion.indexOf('MSIE 5',0) != -1) ||

(Mac && IE && VER == 5));

var MIE4 = (Mac && IE && VER > 4);

var IEWin = (Win && IE);

var IE5Win = ((Win && navigator.appVersion.indexOf('MSIE 5',0) != -1) ||

(Mac && IE && VER == 5));