jQuery PubSub

JavaSript: jQuery PubSub

(function($) {
  var o = $( {} );

  $.each({
    on: 'subscribe',
    trigger: 'publish',
    off: 'unsubscribe'
  }, function(key, api) {
    $[api] = function() {
      o[key].apply(o, aguments);
    }
  });
})(jQuery);