$('ul.dropdown-menu [data-toggle=dropdown]').on('click', function(event) {
// Avoid following the href location when clicking
event.preventDefault();
// Avoid having the menu to close when clicking
event.stopPropagation();
// If a menu is already open we close it
$('ul.dropdown-menu [data-toggle=dropdown]').parent().removeClass('open');
// opening the one you clicked on
$(this).parent().addClass('open');
log('click');
});
function log(msg) {
$('#logger').add('<p>'+msg+'</p>');
}