I'm using WordPress MU and on all of my sub-blogs, after calling the wp_list_pages() function with parameters 'title_li=&child_of=0' the "current_page_ancestor" class is not getting assigned to any of the current page's ancestor links. The only CSS hooks I have to work with are "current_page_item" for the current page's link and "current_page_parent" for the current page's parent.
This is problematic when I'm on any page with a depth of 2 or greater because I lose CSS hooks on its ancestors. I need these because I'm implementing an expandable/collapsible menu and I need a page's ancestor to be expanded while viewing that page so that the user knows their location.
On my main blog in the MU system however I'm not having this problem - the "current_page_ancestor" is always there. It seems to only be a problem on sub-blogs. Any ideas?
