function openimage(filename, width, height) {
	width += 16;
	height += 16;
	var title = filename.replace(/[^a-zA-Z0-9]/g, "x");
	var Fenster1 = window.open(filename, "image_"+title, "width="+width+",height="+height+",left=100,top=100");
  	Fenster1.focus();

}