public static function connect($dbType, $dbHost, $dbUser, $dbPass, $dbDatabase)
 {
     if (self::$allowChangeInit === true) {
         switch ($dbType) {
             case 'mysql':
                 self::$db = mysql_connect($dbHost, $dbUser, $dbPass);
                 if (!mysql_select_db($dbDatabase, self::$db)) {
                     self::$isConnected = false;
                     throw new exception('Can not use database: ' . $dbDatabase);
                 }
                 break;
             default:
                 self::$isConnected = false;
                 throw new exception('Db not supported: ' . $dbType);
         }
         self::$isConnected = true;
     }
 }