Really small jQuery pub/sub script

jquery.tinypubsub.js

// See example at http://jsfiddle.net/fluidbyte/AhBKq/

var broadcast = {

    speak: function (name, message) {
        $(document).trigger(name, message);
    },

    listen: function (name, callback) {
        $(document).bind(name, function (e, message) {
            if (callback && typeof (callback) === "function") {
                callback(message);
            }
        });
    }

};