public static function get_all_selectable()
 {
     $result = array();
     $sql = sprintf("SELECT * FROM `%s` WHERE \n            `id`!=%d AND `id`!=%d AND `id`!='%d' AND `id`!='%d'\n            ORDER BY `name` ASC", self::get_mysql_table(), self::START, self::END, self::CUSTOM, self::TEST);
     $z = mysql_query($sql);
     while ($r = mysql_fetch_array($z)) {
         array_push($result, DS_TestSectionType::from_mysql_result($r));
     }
     return $result;
 }