gistfile1.js

/*
 * Taken from http://sower.com.au/2011/06/jquery-multilevel-accordion-in-10-lines-of-code/
 */
$(document).ready(function() {
    $('.menu li ul').hide();
    $('.menu li a').click(
            function(evt) {
                evt.preventDefault();
                evt.stopPropagation();
                var openMe = $(this).next();
                var mySiblings = $(this).parent().siblings().find('ul');
                if (openMe.is(':visible')) {
                    openMe.slideUp();
                } else {
                    mySiblings.slideUp();
                    openMe.slideDown();
                }
            }
    );
});