issue with language and config for internationalization

[eluser]mambe churchill nanje[/eluser]
thanks Natebot
thats exactly what I saw in the user guide but one problem I have is that, if the language is dynamically detected from user http headers and then set to session, before the session loads, the config has already loaded, and the default language loaded too, now is it possible to reset the config and then reload the config with all the language settings ???
thats where I have a problem now