function ExtendEvent( event ) {
  event.getEventTarget = function() {
    if ( this.target )
      return this.target;
    else if ( this.srcElement )
      return this.srcElement;
    return false;
  }
  event.cancelPropagation = function() {
    if ( this.cancelBubble )
      this.cancelBubble = true;
    else
      this.stopPropagation();
    return true;
  }
  return event;
}