var browserDom = true
var browserName = navigator.appName;
var browserVer = parseInt(navigator.appVersion);
var agent=navigator.userAgent.toLowerCase();

if (document.getElementById) {
browserDom = true
}
else {
browserDom = false
}

if (browserDom == false) ver = "4minus";
else if      ((browserName == "Netscape")&&(browserDom == true)) ver = "n6plus";
else if ((browserName == "Microsoft Internet Explorer")&&(browserDom == true)) ver = "ie5plus";
else ver = "ie5plus";

if (ver == "n6plus") {
//alert ("this is Netscape 6 or higher");
document.write ('<link rel="stylesheet" href="../style/style-n.css" type="text/css">');
}

if (ver == "ie5plus") {
//alert ("this is Explorer 5 or higher");
document.write ('<link rel="stylesheet" href="../style/style-ie.css" type="text/css">');
}

if (ver == "4minus") {
//alert ("this is a version 4 or lower browser");
document.location.href="../index4.htm";
}

//alert (browserDom+" "+browserName);
//alert (agent);