gistfile1.js

var components = components || {};

(function (globals) {

    "use strict";
    /**
     * Event manager
     */
    globals.emitter = (function () {
        var handlers = {};

        return {
            /**
             * register never event
             */
            on: function (name, scope, callback) {
                handlers[name] = (handlers[name] || []).concat({
                    callback: callback,
                    scope: scope
                });
            },

            /**
             * trigger said event
             */
            trigger: function (name, parameters) {
                (handlers[name] || []).forEach(function (handler) {
                    handler.callback.call(handler.scope, parameters || []);
                });
            }
        };
    }());

}(components));