var NavigatorOK = false;
var Ver4 = parseInt(navigator.appVersion) >= 4
var Nav4 = ((navigator.appName == "Netscape") && Ver4)
var IE4 = ((navigator.userAgent.indexOf("MSIE") != -1) && Ver4)


if (navigator.appName == "Microsoft Internet Explorer" && parseInt(navigator.appVersion) >= 4){NavigatorOK = true;}
else if (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 3){NavigatorOK = true;}

if (Nav4)
  document.location='./ns/index.html'