GA (Universal) event tracking

ga-track-event.js

var noop = function () {};

var trackEvent = function () {
    var ga      = window.ga,
        toArray = Array.prototype.slice,
        params  = ['send', 'event'].concat(toArray.call(arguments));

    if (typeof ga === 'undefined') {
        /*console.log('trackEvent');
        console.log(params);*/
        return noop();
    }

    return ga.apply(null, params);
};