selected class for parent page menu

selected class for parent page menu

Hi

How do i enabled the "selected" class for parent page links? Consider this scenarios:

I have "Page B" which has 5 sub pages. All these subpages are hidden from Menu. When someone visits the subpages, i would want to highlight the parent page (Page B). How do i go about doing this?

Please let me know.

Thanks
Sujith