userAgent font-family

w

view-source:http://you.163.com/ 

CODE

<script type="text/javascript">
    (function () {
        var userAgent = window.navigator.userAgent;
        if (/windows|win32/i.test(userAgent)) {
            if (/Windows NT 5/.test(userAgent)) {
                document.writeln('<style type="text/css">' + 'body,button,input,select,textarea,code{font-family: tahoma,sans-serif;}' + '<' + '/style>');
            }
        } else if (/macintosh/i.test(userAgent)) {
            document.writeln('<style type="text/css">' + 'body,button,input,select,textarea,code{font-family: "Heiti SC","Lucida Grande","Hiragino Sans GB","Hiragino Sans GB W3",verdana;}' + '<' + '/style>');
        }
    })();
</script>