[jQuery] show if class matches current body id

[Max]

Hi im trying to adapt the following function so that if the ul class
matches the body's id it will show.  Right now it is set to show the
ul with the class 'test'.

This is for an accordion menu, and would allow the same menu to be an
include on all pages. and the appropriate segment would open.

function initMenu() {

  $('#menu ul').hide();
  $('#menu ul.test').show();
  $('#menu li a').click(
    function() {
        $(this).next().toggle();
      }
    );
  }
$(document).ready(function() {initMenu();});



any suggestions?
Thanks!