function _getAddReviewers()
 {
     $html = '';
     if ($this->table !== null && !$this->table->isClosed() || $this->table === null) {
         $atrf = new Docman_ApprovalTableReviewerFactory($this->table, $this->item);
         $ugroups = $atrf->getUgroupsAllowedForTable($this->item->getGroupId());
         $html .= '<div id="docman_approval_table_create_add_reviewers">';
         $html .= '<table>';
         $html .= '<tr>';
         $html .= '<td>' . $GLOBALS['Language']->getText('plugin_docman', 'details_approval_create_reviewers_hand') . '</td>';
         $html .= '<td><input type="text" name="user_list" value="" id="user_list" class="text_field"/></td>';
         $html .= '</tr>';
         $html .= '<tr>';
         $html .= '<td>' . $GLOBALS['Language']->getText('plugin_docman', 'details_approval_create_reviewers_ugroup') . '</td>';
         $html .= '<td>' . html_build_multiple_select_box_from_array($ugroups, 'ugroup_list[]', array(), 8, true, '', false, '', false, '', false) . '</td>';
         $html .= '</tr>';
         $html .= '</table>';
         $html .= '</div>';
         $js = "new UserAutoCompleter('user_list', '" . util_get_dir_image_theme() . "', true);";
         $GLOBALS['Response']->includeFooterJavascriptSnippet($js);
     } else {
         return $GLOBALS['Language']->getText('plugin_docman', 'details_approval_create_reviewers_oldver');
     }
     return $html;
 }