ok, would it be a good idea then to do this automatically, when there is no pic given?
e.g. by PHP (m I correct in this?):
<?php
$img = imagecreatetruecolor(1, 1);
imagesavealpha($img, true);
$transparent = imagecolorallocatealpha($img, 255, 255, 255, 127);
imagefill($img, 0, 0, $transparent);
header('Content-Type: image/png');
imagepng($img);
imagedestroy($img);
?>