/**
  * Disconnects from the database server
  *
  * @return bool  TRUE on success, FALSE on failure
  */
 function disconnect()
 {
     $ret = @msql_close($this->connection);
     $this->connection = null;
     return $ret;
 }

 function disconnect_fbsql($fbsql_link)
 {
     if ($fbsql_link) {
         msql_close($fbsql_link);
         $fbsql_link = false;
     } else {
         return false;
     }
 }

function sql_logout($id)
{
    global $dbtype;
    switch ($dbtype) {
        case "MySQL":
            $dbi = @mysql_close($id);
            return $dbi;
            break;
        case "mSQL":
            $dbi = @msql_close($id);
            return $dbi;
            break;
        case "postgres":
        case "postgres_local":
            $dbi = @pg_close($id);
            return $dbi;
            break;
        case "ODBC":
        case "ODBC_Adabas":
            $dbi = @odbc_close($id);
            return $dbi;
            break;
        case "Interbase":
            $dbi = @ibase_close($id);
            return $dbi;
            break;
        case "Sybase":
            $dbi = @sybase_close($id);
            return $dbi;
            break;
        default:
            break;
    }
}

function CloseDataBase($dbi)
{
    // I found msql_pconnect unstable so we go the slow route.
    return msql_close($dbi['dbc']);
}