browser_version= parseInt(navigator.appVersion);
browser_type = navigator.appName;
if (browser_type == "Microsoft Internet Explorer" && (browser_version >= 4)) {
	document.write("<link REL='stylesheet' HREF='/css/styles_ie4.css' TYPE='text/css'>");
}
else{
	document.write("<link REL='stylesheet' HREF='/css/styles.css' TYPE='text/css'>");
}