wp_page_menu documentation incomplete

I’ve been struggling over a menu in a theme I’m working on. After searching the forums for a while I discovered that wp_page_menu has a parameter ‘depth’ that is not in the Function Reference documentation. If I had known this from the beginning, it would have saved me a few hours of work! I’d appreciate an editor adding this information for the sake of someone else! (Sorry, I didn’t know where else to send this comment.)