function auswahl(wahl){
	var expdate = new Date();
	expdate.setTime(expdate.getTime() +
	(1000*3600*24*365));
	document.cookie = 'style=' + wahl + '; expires='
	+ expdate.toGMTString() + ' ; path=/' ;
	self.location = self.location;
	}
	

		if (document.cookie.indexOf('style=2') >=0)
			document.write('<link rel="stylesheet" type="text/css" href="black-on-white.css" />\n');
				else if (document.cookie.indexOf('style=3') >=0)
					document.write('<link rel="stylesheet" type="text/css" href="white-on-black.css" />\n');
						else
							document.write('<link rel="stylesheet" type="text/css" href="boerne.css" />\n');