os      = getOSType();
browser = getBrowserName();
version = getBrowserVersion();
if (os == "MacOS")   dirName = "mac/";
if (os == "Windows") dirName = "win/";
if (os == "UNIX")    dirName = "unix/";
if (browser == "Firefox") dirName += "ff";
if (browser == "Netscape") dirName += "nn";
if (browser == "Explorer") dirName += "ie";
if (browser == "Safari") dirName += "saf";
if (browser == "Opera") dirName += "op";
if ((version >= 1) && (version < 10))   dirName += "1.css";
document.write("<link rel='stylesheet' href='"+dirName+"' type='text/css'>");