// get browser version
IE=(navigator.appName=="Microsoft Internet Explorer");
NS=(navigator.appName=="Netscape");

bVer = (IE) ? (parseFloat( navigator.appVersion.substring(navigator.appVersion.indexOf("MSIE ")+5) )) : (parseFloat(navigator.appVersion));

// send to appropriate page
if (bVer < 4) {
	location = "browser.php";
}