Attaching an event callback to an iFrame's onload event in IE

gistfile1.js

/**
* This code comes from JeremyMiller on the following thread:
* http://bytes.com/topic/javascript/answers/510057-iframe-ie-onload-problem#post3402334
*/
eventPush(document.getElementById('frame_id'),'load',function () {myFrameOnloadFunction();});
 
function eventPush(obj, event, handler) {
  if (obj.addEventListener) {
    obj.addEventListener(event, handler, false);
  } else if (obj.attachEvent) {
    obj.attachEvent('on'+event, handler);
  }
}