function openWin(src)  {
  	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,scrollbars=yes";
  	var url_neu = "img_win.html";
  	var myWin = open(url_neu, src, winProperties);
  }