Help with .toggle Menu

Help with .toggle Menu

Hi There!

I'm using the .toggle function for a menu I'm building for my site.
So far this is what I have:  http://tinyurl.com/37spr7x

I'd like to be able to make it so that when each menu item is clicked, the currently open submenu closes and the new one opens (so having only 1 submenu set open at one time). Is there a way I can do this?

jQuery Code:
  1. $(document).ready(function() {
  2. $('#commentbox').hide();
  3. $('a.comment').click(function() {
  4. var id = $(this).attr('id');
  5. $('#commentbox' + id).toggle(500);
  6. // alert(id);
  7. return false;
  8. });
  9. });

Thanks for your help! :)