http://leaf.dragonflybsd.org/mailarchive/users/2009-11/msg00077.html
(bin attachment on that page is actually a .diff.)
+
+> So I was looking at this and I relized that while the search plugin used
+> to use the format hook, and so there was no way to avoid it seeing all
+> the gunk around the page body, it was changed a while ago for different
+> reasons to use its own hook, postscan. So there's really no reason not
+> to move postscan so it runs before said gunk is added to the page.
+> (Aside from a small risk of breaking other third-party plugins that
+> somehow use postscan.)
+>
+> I've implemented that in git, and it drops the navigation elements nicely.
+> It's perhaps less general than allowing specific divs to be skipped from
+> search, but it seems good enough. Please thank the dragonfly guys for their
+> work on this. [[done]] --[[Joey]]