// JavaScript Document
var browserName=navigator.appName; 
if (browserName=="Microsoft Internet Explorer")
{ 
document.write('<link rel="stylesheet" href="styles/main_ns.css" type="text/css">')
}
else if (document.layers) { // NS 4.x
}
else {
 document.write('<link rel="stylesheet" href="styles/main_ns.css" type="text/css">')
}