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

else if (parseInt(navigator.appVersion)>=4 &&( agt.indexOf('gecko')!=-1)) //ntsc>4 und Mozilla 
{
			if (os.indexOf("Mac") != -1){
				document.write('<link href="../css/style.css" rel=stylesheet type="text/css">');
			}else{
				document.write('<link href="../css/style.css" rel=stylesheet type="text/css">');
			}
}

else if (parseInt(navigator.appVersion)>=4 &&( agt.indexOf('opera')!=-1)) //Opera 
{
			if (os.indexOf("Mac") != -1){
				document.write('<link href="../css/style.css" rel=stylesheet type="text/css">');
			}else{
				document.write('<link href="../css/style.css" rel=stylesheet type="text/css">');
			}
}

else //ntsc4 
{
if (os.indexOf("Mac") != -1){
			document.write('<link href="../css/ntsc.css" rel=stylesheet type="text/css">');
		}else{
			document.write('<link href="../css/ntsc.css" rel=stylesheet type="text/css">');
		}
}