public function getCarrierImage($carrier_id, $data)
 {
     // if carrier image exist else we take a default image
     $tabCarrier = array('src' => file_exists(_PS_SHIP_IMG_DIR_ . $carrier_id . '.jpg') ? _THEME_SHIP_DIR_ . $carrier_id . '.jpg' : '../img/admin/delivery.gif', 'alt' => 'logo');
     // allows to get a carrier with Javascript
     if (ErpOrder::isMROrder($data['id_order'])) {
         $tabCarrier['alt'] = 'MR';
     } else {
         if (ErpOrder::isExpeditorCarrier($carrier_id)) {
             $tabCarrier['alt'] = 'Expeditor';
         } else {
             $tabCarrier['alt'] = 'unsupportedCarrier';
         }
     }
     // add weight in hidden field (for shipping)
     $tabCarrier['weight'] = $data['poid'] * 1000;
     $html = '<input type="hidden" name="weight-carrier_id" value="' . $tabCarrier['weight'] . '" />';
     $html .= '<img style="height:32px;" alt="' . $tabCarrier['alt'] . '" src="' . $tabCarrier['src'] . '" class="carrier_image" data-carrier="' . $tabCarrier['alt'] . '"/>';
     return $html;
 }