function Job_list($job_no){
	
	global $conn;
	
	$query = "SELECT job_name, row_id FROM job_list"; 
	$result = mysql_query($query, $conn) or die(mysql_error());

	while($row = mysql_fetch_array($result)){
		$arr[] = array($row['row_id'] => $row['job_name']);
	}


	return $arr[$job_no];
}