/**
  * Display Product's caracteristics tab in complete product sheet
  * @param array $args
  * @return string
  */
 function display_product_caracteristics_tab($args)
 {
     $output = '';
     if (!empty($args) && !empty($args['pid'])) {
         $wps_product_mdl = new wps_product_mdl();
         $product_atts_def = $wps_product_mdl->get_product_atts_def($args['pid']);
         if (!empty($product_atts_def)) {
             ob_start();
             require wpshop_tools::get_template_part(WPS_PRODUCT_DIR, WPS_PRODUCT_TEMPLATES_MAIN_DIR, "frontend", "product_caracteristics_tab");
             $output = ob_get_contents();
             ob_end_clean();
         }
     }
     return $output;
 }