function getOSType()
{
    var uAgent  = navigator.userAgent.toUpperCase();
    if (uAgent.indexOf("MAC") >= 0) return "MacOS";
    if (uAgent.indexOf("WIN") >= 0) return "Windows";
    if (uAgent.indexOf("X11") >= 0) return "UNIX";
    return "";
}
function getBrowserName() {
	var aName  = navigator.appName.toUpperCase();
	if (aName.indexOf("NETSCAPE") >= 0)  return "Netscape";
	if (aName.indexOf("MICROSOFT") >= 0) return "Explorer";
	return "";
}
function getBrowserVersion() {
	var browser = getBrowserName();
	var version = 0;
	var s = 0;
	var e = 0;
	var appVer  = navigator.appVersion;
	if (browser == "Netscape")
	{
		s = appVer.indexOf(" ",0);
		version = eval(appVer.substring(0,s));
		if (version >= 5) version++;
	}
	if (browser == "Explorer")
	{
		appVer  = navigator.userAgent;
		s = appVer.indexOf("MSIE ",0) + 5;
		e = appVer.indexOf(";",s);
		version = eval(appVer.substring(s,e));
	}
	return version;
}


os = getOSType();
browser = getBrowserName();
version = getBrowserVersion();

if (browser == "Netscape") {
	if ((version >= 4) && (version < 5)) {
		if (os == "Windows") {
			dirName = "css/text_win_nn4.css";}
		else {
			dirName = "css/text_nn4.css";}
	}
	else {
		dirName = "css/text.css";}
}
if (browser == "Explorer") {
	dirName = "css/text.css";}
if (browser == "UNIX") {
	dirName = "css/text.css";}

document.write("<link rel='stylesheet' href='"+dirName+"' type='text/css'>");