Skip top-level pages in menus

I’ve organized some existing pages under a few different top-level pages using wordpress 3.0’s new menu feature (i’m using the default theme). These top-level pages are more like categories for their daughter pages and I don’t have or want to create content to have on the page for that top level page when really everything is already in the other pages in the drop down menu.

Is there a way to make the top level pages of my site’s navigation no long be links?

thanks 🙂