function anzeigen_Bild(name,img_width,img_height,win_width,win_height){
doc=window.open("", "fenster", "width="+win_width+",height="+win_height+",menubar=0,status=0,scrollbars=0");
doc.document.open("text/html");
doc.document.write('Bild');
doc.document.write('
');
doc.document.write('
');
doc.document.close();
doc.focus()
}