var browserName = navigator.appName;
var browserVersion = parseInt(navigator.appVersion);
var bNS = true;
if (!browserName.indexOf("Microsoft Internet Explorer"))
bNS = false;
if (bNS)
{
if (browserVersion >= 5)
// Netscape 5-6 (Mozilla)
document.write("");
else
// Netscape 4
document.write("");
}
else
{
// Annan, t ex Explorer
document.write("");
}