Hide default barcode thumbnails on product page

-- HikaShop version -- : 2.2.2
-- Joomla version -- : 2.5.14

Hi,
is there an option to hide default barcode thumbnail on product page if some image doesn't exist? I use 6 images for every product in CSV, but actually there can be less of them (3,4,5). The only decision which i found is to comment this line "$image_options = array('default' => true);" in show_block_img.php - missing images are not shown as default images, but I don't know if it's correct to do that.
Thank you.

if(empty($this->popup))
	$this->popup = hikashop_get('helper.popup');
	//$image_options = array('default' => true);
	$img = $this->image->getThumbnail(@$image->file_path, array('width' => $width, 'height' => $height), $image_options);
	if($img->success) {
		$attr = '';
		if (!empty ($this->element->images) && count($this->element->images) > 1) {
		$attr = 'onclick="return window.localPage.openImage(\'hikashop_main_image\');"';
		}
		$html = '<img id="hikashop_main_image'.$variant_name.'" style="margin-top:10px;margin-bottom:10px;display:inline-block;vertical-align:middle" title="" src="'.$img->url.'"/>';
		echo $this->popup->image($html, $img->origin_url, null, $attr);
		}

Hmmm... Good idea) Thanks

Hi, Nicolas, unfortunately that decision wasn't
entirely right for me. Using blank images there are blank spaces on product page and when i'm pointing my mouse at theese spaces, it causes showing blank image.
Sorry for my English. I can't find wright words to describe my problem.
Thank you for your answer. I appreciate your time.
Denis

Thanks. It works.