var os = (navigator.appVersion.indexOf ("Win", 0) != -1) ? "w" : "m";

var br = (navigator.appName.indexOf ("Mic", 0) != -1) ? "e" : "n";

if ((os == "m") && (br == "e") && document.getElementById) br += "_5";
else if ((os == "m") && (br == "n") && document.getElementById) br += "_6";

document.write ('<link rel="STYLESHEET" type="text/css" href="/css/' + os + '_' + br + '.css" title="webdesign">');