function create_db_instance()
{
require 'db_settings.php';
try {
$db = new CMySQL();
$db->connect($db_server, $db_username, $db_password);
$db->selectDatabase($db_database);
return $db;
} catch (Exception $e) {
echo 'Virhe tietokantayhteydessä!';
}
return null;
}