Best way to add “current” class to nav in Rails 3

Question

I have some static pages in a navigation menu. I want to add a class like \"current\" to the item which is currently displaying.

The way I am doing so is to add tons

Answer 1

all these work with simple nav bars, but what about drop down sub-menu ? when a sub-menu is selected the top menu item should be made 'current' in this case tabs_on_rails me be the solution