Trigger Dom Event

gistfile1.txt

function triggerEvent(el, eventName) {
  var event;
  if (document.createEvent) {
    event = document.createEvent('HTMLEvents');
    event.initEvent(eventName, true, true);
  } else if (document.createEventObject) { // IE < 9
    event = document.createEventObject();
    event.eventType = eventName;
  }
  event.eventName = eventName;
  if (el.dispatchEvent) {
    el.dispatchEvent(event);
  } else if (el.fireEvent && window.htmlEvents['on' + eventName]) { // IE < 9
    el.fireEvent('on' + event.eventType, event); // can trigger only real event (e.g. 'click')
  } else if (el[eventName]) {
    el[eventName]();
  } else if (el['on' + eventName]) {
    el['on' + eventName]();
  }
}