```ruby
module ApplicationHelper

  def nav_link
    render :partial => "shared/navi_link", :locals => {}
  end

  def languages
    I18n.fallbacks.keys.concat(I18n.available_locales).uniq
  end

end
```

Fix languages list to work even if fallbacks is disabled
user
```ruby
module ApplicationHelper

  def nav_link
    render :partial => "shared/navi_link", :locals => {}
  end

  def languages
    [:fi, :en, :se].concat(I18n.available_locales).uniq
  end

end
```
assistant