private function fetchAdminEditFormModifiable()
 {
     $html = '';
     $html .= '<h3>' . $GLOBALS['Language']->getText('plugin_tracker_formelement_admin', 'static_values') . '</h3>';
     $h = new HTML_Element_Input_Checkbox($GLOBALS['Language']->getText('plugin_tracker_formelement_admin', 'alphabetically_sort'), 'bind[is_rank_alpha]', $this->is_rank_alpha);
     $h->setId('is_rank_alpha');
     $html .= '<p>' . $h->render() . '</p>';
     $html .= '<table cellpadding="2" cellspacing="0" border="0">';
     foreach ($this->getAllValues() as $v) {
         $html .= $this->fetchAdminEditRowModifiable($v);
     }
     $html .= '</table>';
     //Add new values
     $html .= '<p id="tracker-admin-bind-static-addnew">';
     $html .= '<strong>' . $GLOBALS['Language']->getText('plugin_tracker_formelement_admin', 'add_new_values') . '</strong><br />';
     $html .= '<textarea name="bind[add]" rows="5" cols="30"></textarea><br />';
     $html .= '<span style="color:#999; font-size:0.8em;">' . $GLOBALS['Language']->getText('plugin_tracker_formelement_admin', 'add_row') . '</span><br />';
     $html .= '</p>';
     //Select default values
     $html .= $this->getSelectDefaultValues();
     return $html;
 }