def store_current_alchemy_language(language)
      if language && language.id
        session[:alchemy_language_id] = language.id
        Language.current = language
      end
    end
def store_current_alchemy_language(language)
      if language && language.id
        session[:alchemy_language_id] = language.id
        Language.current = language
      end
    end
Stores language's id in the session.

 Also stores language in +Language.current+