backbone-events.js

// global event dispatcher
Backbone.View.prototype.eventAggregator = _.extend({}, Backbone.Events);

// create two different views
var view1 = new Backbone.View();
var view2 = new Backbone.View();

// and attach a listener on view1
view1.eventAggregator.on(‘disconnect’, function() {
  console.log('view1 disconnected');
});

// now, triggering an event from view2 will do nothing
view2.trigger('disconnect'); // (nothing)

// but using the global event dispatcher, view2 can communicate with view1
view2.eventAggregator.trigger('disconnect'); // 'view1 disconnected'