/* 
   Simple JQuery Collapsing menu.
   HTML structure to use:

   <ul id="menu">
     <li><a href="">Sub menu heading</a>
     <ul>
       <li><a href="http://site.com/">Link</a></li>
       <li><a href="http://site.com/">Link</a></li>
       <li><a href="http://site.com/">Link</a></li>
       ...
       ...
     </ul>
     <li><a href="">Sub menu heading</a>
     <ul>
       <li><a href="http://site.com/">Link</a></li>
       <li><a href="http://site.com/">Link</a></li>
       <li><a href="http://site.com/">Link</a></li>
       ...
       ...
     </ul>
     ...
     ...
   </ul>

Copyright 2007 by Marco van Hylckama Vlieg

web: http://www.i-marco.nl/weblog/
email: marco@i-marco.nl

Free for non-commercial use
*/

function initMenu() {
  $('#menu1 ul').hide();
  $('#special1').show();
  /*$('#menu1 li a').click(
    function() {
        $(this).next().slideToggle('normal');	
      }
    );*/
  $('#menu1 li a').click(
    function() {
      var checkElement = $(this).next();
      if((checkElement.is('ul')) && (checkElement.is(':visible'))) {
        return false;
        }
      if((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
        $('#menu1 ul:visible').slideUp('normal');
        checkElement.slideDown('normal');
        return false;
        }
      }
    );
  }
$(document).ready(function() {initMenu();});
<!-- This document saved from http://www.creationtoday.org/wordpress/wp-content/themes/cse/js/menu-collapsed.js -->