Moving up multiple parents in jQuery - more efficient way?

Question

So, I have a navigation that is a list and has sublists and sublists.

Basically, the nav is by default collapsed, but if people click on a page that\'s in a sublist,

Answer 1

$(this).closest("ul") will traverse the parents until it finds a ul

http://docs.jquery.com/Traversing/closest#expr

...get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree...