Only have one collapsable block open at one time

Question

I have a jquery exapandable list, currently when i click a link it opens IN ADDITION to any open previously. How can I change this so if I had mobile open then i click Landline, it opens landline but also closes mobile? I only want one item to be open at any one time.

JS

$(document).ready(function() {
        setTimeout(function() {
            // Slide
            $('#menu1 > li > a.collapsed + ul').slideToggle('medium');
            $('#menu1 > li > a').click(function() {
            $(this).toggleClass('expanded').toggleClass('collapsed').parent().find('> ul').slideToggle('medium');
            });
            $('#example1 .expand_all').click(function() {
                $('#menu1 > li >  a.collapsed').addClass('expanded').removeClass('collapsed').parent().find('>  ul').slideDown('medium');
            });
            $('#example1 .collapse_all').click(function() {
                $('#menu1 > li > a.expanded').addClass('collapsed').removeClass('expanded').parent().find('> ul').slideUp('medium');
            });
        }, 250);
    });

HTML

<div id="example1">
    <ul id="menu1" class="example_menu">
        <li><a class="collapsed">Mobile</a>
    <ul>
        <li><h2>TEST1</h2><br>

    </ul>
    </li>
        <li class="footer"><span> </span></li>
        <li><a class="collapsed">Landline</a>
    <ul>
        <li><h2>TEST2</h2><br>

    </ul>
    </li>

jsfiddle http://jsfiddle.net/EfURx/1/

Answer 1

All I needed was an accordion menu, sorted!

Answer 2

I have made something for you :) I hope that will helps you. AUTO CLOSE COLLAPSIBLE

$('.openMe').each(function() {
    var coll = $(this);
    coll.trigger('expand');
});

$('.openMe').each(function() {
    var coll = $(this);
    coll.trigger('collapse'); 
});

Good work

Answer 3

solved by using the 'Accordion' option on these range of menus file:///Users/johnfarrell/Desktop/collapsible-menu/collapsible-menu.html