function checkOS(){
	if(navigator.appVersion.indexOf("Mac") != -1){
		if(navigator.appName.indexOf("Netscape") != -1){
			if ((navigator.userAgent.indexOf("Firefox") != -1)||(navigator.userAgent.indexOf("Safari") != -1)){
				document.writeln("<LINK rel=stylesheet HREF=\"xfiles/sojwiewin.css\" TYPE=\"text/css\">");//firefox+safari mac		
			} else if ((navigator.appVersion.indexOf("4") != -1)||(navigator.appVersion.indexOf("5") != -1)){
				document.writeln("<LINK rel=stylesheet HREF=\"xfiles/sojwnsmac.css\" TYPE=\"text/css\">");//neuerer ns mac
//				document.writeln("nsmac");
			} else {
				document.writeln("<LINK rel=stylesheet HREF=\"xfiles/sojwiewin.css\" TYPE=\"text/css\">");//alter ns mac
//				document.writeln("alter nsmac");
			}
		} else {
			document.writeln("<LINK rel=stylesheet href=\"xfiles/sojwiemac.css\" TYPE=\"text/css\">");//msie mac
//			document.writeln("iemac");
		}
	} else if(navigator.appVersion.indexOf("Win") != -1){
		if(navigator.appName.indexOf("Netscape") != -1){
			document.writeln("<LINK rel=stylesheet HREF=\"xfiles/sojwnswin.css\" TYPE=\"text/css\">");// ns win
		} else {
			document.writeln("<LINK rel=stylesheet href=\"xfiles/sojwiewin.css\" TYPE=\"text/css\">");//msie win
		}
	} else {
		document.writeln("<LINK rel=stylesheet href=\"xfiles/sojwiemac.css\" TYPE=\"text/css\">");//alle anderen systeme
//		document.writeln("anderer browser");
	}
}
onLoad=checkOS();
//document.write(navigator.appVersion);