printf("HandleImageButtonEvent\n");
HandleImageButtonEvent(nsGUIEvent *aEvent){printf("HandleImageButtonEvent\n");  nsEventStatus    result = nsEventStatus_eIgnore;  nsIImageButton * button;	if (NS_OK == aEvent->widget->QueryInterface(kCIImageButtonIID,(void**)&button)) {    result = button->HandleEvent(aEvent);    NS_RELEASE(button);  }  return result;}