function openWindowPIC(url) {
	if (document.images[0].complete == "undefined")
	    {
		 alert("Ihre Browserversion unterstuetzt diese Funktion leider nicht.");
		 return;
		}
	var winProperties = "toolbar=no,location=no,directories=no,status=no,copyhistory=no,width=200,height=100,resizable=yes";
	var url_neu="/leer_mdp.html";
	var windowPIC = open(url_neu, url, winProperties);
}

function openCover(url) {
	if (document.images[0].complete == "undefined")
	    {
		 alert("Ihre Browserversion unterstuetzt diese Funktion leider nicht.");
		 return;
		}
	var winProperties = "toolbar=no,location=no,directories=no,status=no,copyhistory=no,width=200,height=100,resizable=yes";
	var url_neu="/leer_mdpc.html";
	var windowPIC = open(url_neu, url, winProperties);
}