os      = getOSType();
//browser = getBrowserName();
//version = getBrowserVersion();
if (os == "MacOS"){
dirName = "css/mac_base.css";
} else if (os == "Windows"){
dirName = "css/win_base.css";
} else {
dirName = "css/mac_base.css";
}
/*
if (browser == "Netscape") dirName += "nn";
if (browser == "Explorer") dirName += "ie";
if (browser == "Safari") dirName += "saf";
if (browser == "Opera") dirName += "op";
if ((version >= 1) && (version < 2))   dirName += "1.css";
if ((version >= 2) && (version < 3))   dirName += "2.css";
if ((version >= 3) && (version < 4))   dirName += "3.css";
if ((version >= 4) && (version < 5))   dirName += "4.css";
if ((version >= 5) && (version < 5.5)) dirName += "5.css";
if ((version >= 5.5) && (version < 6)) dirName += "5.5.css";
if ((version >= 6) && (version < 7))   dirName += "6.css";
if ((version >= 7) && (version < 8))   dirName += "7.css";
*/
//dirName="css/base.css";
//alert(dirName);
document.write("<link rel='stylesheet' href='"+dirName+"' type='text/css'>");