Help with languages and styles

[cragtay]

I want to build a forum with 2 languages: English and Portuguese. There are separate styles for each language. There are 5 sub-forums in English and 2 sub-forums in Portuguese. I also have a keyboard (calling a javascript script) for typing Portuguese.

My demand is that, depending on member's nationality, the default language and the style are set appropriately. For example,

• if a member is from Portugal, or Brazil, or Angola (defined in his profile), he will see the forum in Portuguese style, the language is Portuguese, as well as the keyboard is activated so that he can type Portuguese in posts and he can see all 7 sub-forums.
• if a member is from any other countries, he can only see 5 sub-forums, and the forum is in English style, as well as the language is English.

Could anyone help me?