/**
  * Gets the default html for depths 0 & 1.
  * Used for dynamic tf_megamenu_optcontainer
  * html substitution when reordering the
  * admin nav menu builder
  * @ajax
  */
 public function ajax_optcontainer_defaults()
 {
     if (!tf_current_user_can(array('manage_options', 'edit_theme_options'), false)) {
         die(__('Access denied', 'tfuse'));
     }
     $arr = TF_MEGAMENU_OPTHELP::get_optcontainer_defaults();
     echo json_encode($arr);
     die;
 }