var _agent = navigator.userAgent.toLowerCase();
var os = (navigator.appVersion.indexOf ("Win", 0) != -1) ? "w" : "m";
var br = (navigator.appName.indexOf ("Mic", 0) != -1) ? "e" : "n";
if(os=="w"){
var _major = parseInt(navigator.appVersion);
var _ns    = ((_agent.indexOf('mozilla') != -1) && (_agent.indexOf('compatible') == -1));
var _ns4   = (_ns && (_major == 4));
}
if(_ns4==true){
document.write ('<link rel="STYLESHEET" type="text/css" href="/css/wns.css">');
}
else{
document.write ('<link rel="STYLESHEET" type="text/css" href="/css/' + os + '_' + br + '.css">');
}