public static function getExternInstance($aHost, $aDatabase, $aUser, $aPass, $aRethrow = false)
{
if (self::$Instance == NULL) {
self::$Instance = new Connector($aHost, $aDatabase, $aUser, $aPass, $aRethrow);
} else {
if (self::$Instance->mHost != $aHost || self::$Instance->mDatabase != $aDatabase) {
self::$Instance = NULL;
self::$Instance = new Connector($aHost, $aDatabase, $aUser, $aPass, $aRethrow);
}
}
return self::$Instance;
}