// Improved browser detect to catch Netscape 6
var ie4 = false;
var ns4 = false;
var ns6 = false;
if (document.layers) {
	ns4 = true;
} else if (document.all) {
	ie4 = true;
} else if (document.getElementById) {
	ns6 = true;
} else {
	ie4 = true;
}