$result = db_access($MySQL_DB,"LOCK TABLES Numbers WRITE");
$result = db_access($MySQL_DB,"SELECT Number FROM Numbers WHERE Name = '$Name'");
$row = mysql_fetch_array($result);
$NewNumber = $row[0] + 1;
$result = db_access($MySQL_DB,"REPLACE INTO Numbers SET Name = '$Name', Number = $NewNumber");
$result = db_access($MySQL_DB,"UNLOCK TABLES");