Event.js

event.js

var Event = function() {
    var callbacks = {};

    function emit(name, params) {
        if (callbacks[name]) {
            callbacks[name].map(function(item) {
                item(params);
            });
        }
    }

    function subscribe(name, callback) {
        if (!callbacks[name]) callbacks[name] = [];
        callbacks[name].push(callback);
    }

    function unlisten(name, callback) {
        if (callbacks[name]) {
            callbacks[name].slice(callbacks[name].indexOf(callback), 1)
        }
    }

    return {
        emit: emit,
        unsubscribe: subscribe,
        subscribe: subscribe,
    };
}

var awardsEvents = new Event();