$(document).ready(function(){
  $('.dropdown-submenu a.test').on("click", function(e){
    $(this).next('ul').toggle();
    e.stopPropagation();
    e.preventDefault();
  });
});
//Stack menu when collapsed
$('#bs-example-navbar-collapse-1').on('show.bs.collapse', function() {
    $('.nav-pills').addClass('nav-stacked');
});

//Unstack menu when not collapsed
$('#bs-example-navbar-collapse-1').on('hide.bs.collapse', function() {
    $('.nav-pills').removeClass('nav-stacked');
});