nativeEvents.js

var bindNativeEvent = function (domElement, eventType, callback) {
    if (!domElement || !eventType) {
        return;
    }

    var eventMethod = window.addEventListener ?
                        ['addEventListener', ''] :
                        ['attachEvent', 'on'];

    domElement[eventMethod[0]](eventMethod[1] + eventType, function (event) {
        event = event || window.event;
        var target = event.target || event.srcElement;
        event.target = target;
        callback.call(this, event);
    }, false);
};

var triggerNativeEvent = function (element, event) {
    var evt;

    if (document.createEvent) {
        // modern browsers
        evt = document.createEvent("HTMLEvents");
        evt.initEvent(event, true, true);
        return !element.dispatchEvent(evt);
    } else {
        // ie
        evt = document.createEventObject();
        return element.fireEvent('on' + event, evt);
    }
};

var simulateNativeClick = function () {
    if('createEvent' in document) {
        var doc = this.ownerDocument,
            evt = doc.createEvent('MouseEvents');
        evt.initMouseEvent('click', true, true, doc.defaultView, 1, 0, 0, 0, 0, false, false, false, false, 0, null);
        this.dispatchEvent(evt);
    } else {
        this.click(); // IE
    }
};

/** @example */
bindNativeEvent(document, 'click', function (event) {
    console.log(event);
});

triggerNativeEvent(document, 'click');