if (navigator.platform == "Win32") {
				document.write("<LINK REL=stylesheet HREF=windows.css TYPE=\"text/css\">"); }
			else {
				document.write("<LINK REL=stylesheet HREF=mac.css TYPE=\"text/css\">"); }

function bild(url)
{
    var fenster=window.open(url,"fenster","toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizeable=no,width=450,height=480");


}