jQuery pubsub

gistfile1.js

// Subsriber and publisher pattern via https://api.jquery.com/jQuery.Callbacks/
var topics = {};
jQuery.Topic = function( id ) {
  var callbacks, method,
      topic = id && topics[ id ];

  if ( !topic ) {
      callbacks = jQuery.Callbacks();
      topic = {
          publish: callbacks.fire,
          subscribe: callbacks.add,
          unsubscribe: callbacks.remove
      };
      if ( id ) {
          topics[ id ] = topic;
      }
  }
  return topic;
};

// To subscribe to a topic
jQuery.Topic("topicName").subscribe(callback);

// To publish to a topic
jQuery.Topic("topicName").publish(data);