active record // where() or_where_in() question

[eluser]jurlan[/eluser]
Hi all,

It might be a stupid question but how do I put the following part of a query :

Code:

WHERE((i.Nationality=2) OR (i.ID IN (4356, 77071))

in the active record form with

Code:

$this->db->where('i.Nationality', 2)->or_where_in('i.ID', $numbers);

where $numbers is predefined array containing the 2 numbers.

My example doesn't produce the outer () .. is there a way to do it?

Thanks a lot
/jurlan