// setup test for Nav 4.0
var isIE = false;
var isNav = (navigator.appName.indexOf("Netscape")>=0);
var isNav4 = false;

var isIE4 = false;
var is5up = false;
var isIE6 = false;
var isMac = false;
var isWin = false;


if (isNav) {
	
	if (parseFloat(navigator.appVersion)<5) {
		isNav4=true;
		
	} else {
		is5up = true;
	}
} else {
	isIE4=true;
	isIE=true;
	
	if (navigator.appVersion.indexOf("MSIE 5")>0) {
		isIE4 = false;
		is5up = true;
		
	}
	if (navigator.appVersion.indexOf("MSIE 6")>0) {
		isIE6 = true;
		is5up = true;
		
	}
}	

if (navigator.userAgent.indexOf("Win") >= 0) 
	isWin = true;
else
	isMac = true;