var detect = navigator.userAgent.toLowerCase();
var OS,browser,version,total,thestring;

if (checkIt('konqueror')) {
	browser = "Konqueror";
	OS = "Linux";
}
else if (checkIt('omniweb')) browser = "OmniWeb"
else if (checkIt('opera')) browser = "Opera"
else if (checkIt('webtv')) browser = "WebTV";
else if (checkIt('icab')) browser = "iCab"
else if (checkIt('msie')) browser = "Internet Explorer"
else if (!checkIt('compatible')) {
	browser = "Netscape Navigator"
	version = detect.charAt(8);
} else {
	browser = "An unknown browser";
}

if (!version) { 
	version = detect.charAt(place + thestring.length);
}

if (!OS) {
	if (checkIt('linux')) OS = "Linux";
	else if (checkIt('x11')) OS = "Unix";
	else if (checkIt('mac')) OS = "Mac"
	else if (checkIt('win')) OS = "Windows"
	else OS = "an unknown operating system";
}

/* 
 * function checkIt(string)
 * 			Helper function
 * param:	string
 * var:		string like mozilla, compatible, etc.
 * var:		place is version number
 * returns:	place
 */
function checkIt(string) {
	place = detect.indexOf(string) + 1;
	thestring = string;
	return place;
}

if (browser = "Netscape Navigator" && version == 4)  {

	var stylesheet="<link rel='stylesheet' type='text/css' HREF='/styles/ns4x.css'>";
	var javascript="<script language='javascript' src='/js/ns4x.js'></script>";
	document.write(stylesheet);
	document.write(javascript);

} else if (browser = "Internet Explorer" && version == 4) {

	var stylesheet="<link rel='stylesheet' type='text/css' HREF='/styles/ie4x.css'>";
	var javascript="<script>function active(id){return} function inactive(id){return}</script>";
	document.write(stylesheet);
	document.write(javascript);

} else {

	var stylesheet="<link rel='stylesheet' type='text/css' HREF='/styles/ie5x.css'>";
	var javascript="<script language='javascript' src='/js/ie5.js'></script>";
	document.write(stylesheet);
	document.write(javascript);

} // end if