/**
     * @param COMMENT $obj
     */
    protected function _echo_entry_info($obj)
    {
        $folder = $obj->parent_folder();
        $entry = $obj->entry();
        $type_info = $entry->type_info();
        ?>
      <div class="detail">
        (Attached to <?php 
        echo $type_info->singular_title . ' ';
        echo $entry->title_as_link();
        if ($this->show_folder) {
            echo ' in ' . $folder->title_as_link();
        }
        ?>
)
      </div>
    <?php 
    }
 /**
  * @param SUBSCRIBER $subscriber
  * @param COMMENT $obj
  * @param integer[] $kinds
  * @param OBJECT_RENDERER_OPTIONS $options
  */
 protected function _display($obj, $subscriber, $kinds, $options)
 {
     $this->show_subscription($subscriber, $obj->parent_folder(), 'subscribe_to_folder.php', in_array(Subscribe_folder, $kinds), true, '');
     $this->show_subscription($subscriber, $obj->entry(), 'subscribe_to_entry.php', in_array(Subscribe_entry, $kinds), true, '');
     $this->show_subscription($subscriber, $obj, 'subscribe_to_comment.php', in_array(Subscribe_comment, $kinds), false, '');
     $this->show_subscription($subscriber, $obj->creator(), 'subscribe_to_user.php', in_array(Subscribe_user, $kinds), true, 'creator');
 }