랜덤으로 나오게 하려면요.

<?if (!defined('_GNUBOARD_')) exit; function latest_group($skin_dir="", $gr_id, $rows=10, $subject_len=40, $no_table="", $category="", $orderby=""){	global $config;	global $g4; 	$list = array(); $limitrows = $rows;	$sqlgroup = " select bo_table, bo_subject,bo_9 from $g4[board_table] where gr_id = '$gr_id' $sqls "; 	// 제거할 테이블들	if ($no_table) {		$t_flag = serialize($no_table);		if ($t_flag[0] == "a") {	//Array이면			for ($ic=0; $ic<count($no_table); $ic++) {				$sqlgroup .= " and bo_table != '$no_table[$ic]' ";			}		} else if ($t_flag[0] == "s") {	//String이면			$sqlgroup .= " and bo_table != '$no_table' ";		}	} 	$sqlgroup .= " and bo_use_search=1 order by bo_order_search ";	$rsgroup = sql_query($sqlgroup); 	if ($skin_dir)		$latest_skin_path = "$g4[path]/skin/latest/$skin_dir";	else		$latest_skin_path = "$g4[path]/skin/latest/$config[cf_latest_skin]"; 	for ($j=0, $k=0; $rowgroup=sql_fetch_array($rsgroup); $j++) {		$bo_table = $rowgroup[bo_table]; 		// 테이블 이름구함		$sql = " select * from {$g4[board_table]} where bo_table = '$bo_table' ";		$board = sql_fetch($sql); 		$tmp_write_table = $g4[write_prefix] . $bo_table; // 게시판 테이블 실제이름		// 옵션에 따라 정렬		$sql = "select * from $tmp_write_table where wr_is_comment = 0 ";		// $sql .= "and wr_datetime > ( now() - interval 512 hour) ";		$sql .= (!$category) ? "" : " and ca_name = '$category' ";		$sql .= (!$orderby) ? "  order by wr_hit desc " : "  order by wr_id desc ";		$sql .= " limit $limitrows"; 		$result = sql_query($sql); 		for ($i=0; $row = sql_fetch_array($result); $i++, $k++) { 			if(!$orderby) $op_list[$k] = $row[wr_datetime];			else  {				$op_list[$k] = is_string($row[$orderby]) ? sprintf("%-256s", $row[$orderby]) : sprintf("%016d", $row[$orderby]);				$op_list[$k] .= $row[wr_datetime];			} 			$list[$k] = get_list($row, $board, $latest_skin_path, $subject_len); 			$list[$k][bo_table] = $board[bo_table];			$list[$k][bo_subject] = $board[bo_subject]; 			$list[$k][bo_wr_subject] = cut_str($board[bo_subject] . $list[$k][wr_subject], $subject_len);		}	}	if($k>0) array_multisort($op_list, SORT_DESC, $list);	if($k>$rows) array_splice($list, $rows); 	ob_start();	include "$latest_skin_path/latest.skin.php";	$content = ob_get_contents();	ob_end_clean();	return $content;}/// 함수 정의 끝 ?>