var agt=navigator.userAgent.toLowerCase();
var os=navigator.platform;
if ( (parseInt(navigator.appVersion)>=4) 
&&  (agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)
&& (agt.indexOf('compatible') == -1) ) {
 if (parseInt(navigator.appVersion)>=5) { 
   if (os.indexOf("Mac") != -1)
	  	  document.write('<link href="../css/pc_ie_mac.css" rel=stylesheet type="text/css">');
	  else
		    document.write('<link href="../css/pc_ie.css" rel=stylesheet type="text/css">');
   }
  else {
	  if (os.indexOf("Mac") != -1)
	  	  document.write('<link href="../css/pc_ntsc_mac.css" rel=stylesheet type="text/css">');
	  else
		    document.write('<link href="../css/pc_ntsc.css" rel=stylesheet type="text/css">');
  }
} else {
 if ( (parseInt(navigator.appVersion)>=4) 
 && (agt.indexOf('msie') != -1) ) {
 if (os.indexOf("Mac") != -1)
		document.write('<link href="../css/pc_ie_mac.css" rel=stylesheet type="text/css">');
	else
		document.write('<link href="../css/pc_ie.css" rel=stylesheet type="text/css">');
 }
}