theBrowser = (navigator.appVersion.indexOf("MSIE") == -1) ? "ns" : "ie";
if (navigator.appVersion.indexOf("Gecko")) theBrowser = "ns6";

//alert(navigator.userAgent);

if (theBrowser == "ns") {
	document.write("\<link href='ns.css' type='text\/css' rel='stylesheet' \/>");
} if (theBrowser == "ie")  { 
	document.write("\<link href='ie.css' type='text\/css' rel='stylesheet'>");
} if (theBrowser == "ns6")  { 
	document.write("\<link href='ie.css' type='text\/css' rel='stylesheet'>");
}