1. add this new function

/**********************************************************/
function createNoShows($noshows, $thumbcode){
	$return = '';
	if (count($noshows) > 0) {
		$return .= '<div style="display: none;">';
		foreach ($noshows as $pic) {
			$folder_url = get_option ('siteurl')."/".$pic->path."/";
			$picturefile =  nggallery::remove_umlauts($pic->filename);
			$link =($ngg_options['galImgBrowser']) ? htmlspecialchars(add_query_arg(array('page'=>get_the_ID(),'pid'=>$pic->pid))) : $folder_url.$picturefile;
			
			$return .= '<a href="'.$link.'" title="'.stripslashes($pic->description).'" '.$thumbcode.' ></a>';	
				
		}
		$return .= '</div>'."\n";
	}	
	return $return;
}


2. In function nggCreateGallery find

	array_splice($picturelist, 0, $start);

   before add: 

	$noshows_before = array_slice($picturelist, 0, $start);


3. In function nggCreateGallery find 

	array_splice($picturelist, $maxElement)
	
   before add: 
	
	$noshows_after = array_slice($picturelist, $maxElement);


4. In function nggCreateGallery find

	foreach ($picturelist as $picture) {

   before add: 

	$out .= createNoShows($noshows_before, $thumbcode);


5. In function nggCreateGallery find

	$out .= ($maxElement > 0) ? $navigation : '<div class="ngg-clear"></div>'."\n";

   before add:

	$out .= createNoShows($noshows_after, $thumbcode);</code>