menu accordéon accessible

main.js

/* click event & slide */
/* http://alex-d.fr/blog/ordre-des-evenements-javascript-click-touch-focus-et-confreres */

    var click = false;

    $('#menu li a').click( function() {
        click = true;
        var openMe = $(this).next();
        var mySiblings = $(this).parent().siblings().find('ul');
        if (openMe.is(':visible')) {
          openMe.slideUp('normal');
        } else {
          mySiblings.slideUp('normal');
          openMe.slideDown('normal');
        }
        setTimeout(function() {
          click = false;
        }, 150);
    });

    $('#menu li a').focus( function() {
        setTimeout(function() {
          if(!click) {
              var openMe = $(this).next();
              var mySiblings = $(this).parent().siblings().find('ul');
              if (openMe.is(':visible')) {
                openMe.slideUp('normal');
              } else {
                mySiblings.slideUp('normal');
                openMe.slideDown('normal');
              }
          }
          click = false;
        }, 100);
    });