// 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;
if (isNav) {
	
	if (parseFloat(navigator.appVersion)<5) {
		isNav4=true;
		//alert("Netscape 4.x or older");
	} else {
		is5up = true;
	}
} else {
	isIE4=true;
	isIE=true;
	if ((navigator.appVersion.indexOf("MSIE 5")>0) || (navigator.appVersion.indexOf("MSIE 6")>0)) {
		isIE4 = false;
		is5up = true;
		//alert("IE5");
	}
}