function browsercheck() {
		if ( navigator.userAgent.indexOf("Mac") != -1 ) {
			if ( navigator.appName.indexOf("Explorer") != -1 ){
				document.write('<link href="../style_ie.css" rel="stylesheet" type="text/css">');
			}	
		}else{
			document.write('<link href="../style.css" rel="stylesheet" type="text/css">');
		}
	}
	
	function bildanzeigen (Adresse,breite,hoehe) {
 		bildanzeige = window.open(Adresse, "Bildanzeige", "width="+breite+",height="+hoehe+",scrollbars=yes");
  		bildanzeige.focus();
	}