function removemodifier()
 {
     $modifierId = $this->urlParams['ID'];
     if (ShoppingCart::can_remove_modifier($modifierId)) {
         ShoppingCart::remove_modifier($modifierId);
     }
     if (!$this->isAjax()) {
         Director::redirectBack();
     }
 }
 /**
  * Removes specified modifier, if allowed
  */
 function removemodifier()
 {
     $modifierId = $this->urlParams['ID'];
     if (ShoppingCart::can_remove_modifier($modifierId)) {
         ShoppingCart::remove_modifier($modifierId);
         return self::return_data("success", "Removed");
         //TODO: i18n
     }
     return self::return_data("failure", "Could not be removed");
     //TODO: i18n
 }