var Browser; 
Browser=navigator.appName; 
if (Browser == "Microsoft Internet Explorer") 
{
document.write('<link rel="stylesheet" type="text/css" href="media/sanko_ie.css">');
}
else if (Browser == "Netscape")
{
document.write('<link rel="stylesheet" type="text/css" href="media/sanko_ns.css">');
}
else
{
document.write('<link rel="stylesheet" type="text/css" href="media/sanko_ns.css">');
}