function loadCenterImages(url, fp_images, txt, height, width) {
  var features = "height=" + height + ",innerHeight=" + height;
  	  features += ",width=" + width + ",innerWidth=" + width;
	  ttitle = "<html><head><title>" + txt + " / Grossformat<\/title>\n";		
  var win, zeit=60000;
  if (window.screen) {
    var ah = screen.availHeight - 30;
    var aw = screen.availWidth - 10;

    var xc = (aw - width) / 2;
    var yc = (ah - height) / 2;

    features += ",left=" + xc + ",screenX=" + xc;
    features += ",top=" + yc + ",screenY=" + yc;
  }
 		myWindow=window.open(url, "_blank", features);
		myWindow.document.open();
		myWindow.document.bgColor="#666666";
		myWindow.document.fgColor="#ffffff";
		myWindow.setTimeout ('window.close ()',zeit);
		myWindow.document.write(ttitle);
		myWindow.document.write("<\/head><body leftmargin=0 topmargin=0 marginwidth=0 marginheight=0 bgcolor=\"#FFFFFF\">");
		myWindow.document.write("<img src=\"images/" + fp_images + ".jpg\" border=0>");
		myWindow.document.write("<\/body><\/html>");
		myWindow.focus();
}
