var os, ua = navigator.userAgent;
if (ua.match(/Win(dows )?(NT 5\.1|XP)/)) {
os = "Windows XP";
document.write('<link rel="stylesheet" type="text/css" href="/common/css/base_base.css">');
document.write('<link rel="stylesheet" type="text/css" href="/common/css/winxp.css">');
}else{
document.write('<link rel="stylesheet" type="text/css" href="/common/css/base_base.css">');
}