var browserName=navigator.appName; 
var browserVer=navigator.appVersion;
var version=0;

if (browserName=="Microsoft Internet Explorer" && browserVer.substring(23, 22) <= 6) {
  version="ie6"; 
}

if (version == "ie6") {
document.location.href="ms_upgrade.cfm";
//document.write(browserVer.substring(23, 22));
} else {
document.write("<link rel='stylesheet' href='css/test/red_barn_base.css' type='text/css' />");
//document.write(browserVer.substring(23, 22));
}
//document.write('<link rel='stylesheet' href='css/red_barn_base.css' type='text/css' />');
//document.location.href="index.cfm";
//4.0 (compatible; MSIE 5.0; Macintosh; I; PPC)