/**
 * @param target can be any DOM Element or other EventTarget
 * @param type Event type (i.e. 'click')
 * @param doc Placeholder for document
 * @param event Placeholder for creating an Event
 */
function (target, type, doc, event) {
  doc = document;
  if (doc.createEvent) {
    event = new Event(type);
    target.dispatchEvent(event);
  } else {
    event = doc.createEventObject();
    target.fireEvent('on' + type, event);
  }
};