nsCOMPtr<nsIDOMElement> target = do_QueryInterface(t);  if (target == mCurrentElement) { SetFocusedElement(nsnull); UpdateCommands("blur");
if( t == mCurrentNode ) { SetFocusedNode(nsnull);
XULCommandDispatcherImpl::Blur(nsIDOMEvent* aEvent){  nsCOMPtr<nsIDOMNode> t;  aEvent->GetTarget(getter_AddRefs(t));  nsCOMPtr<nsIDOMElement> target = do_QueryInterface(t);    if (target == mCurrentElement) {    SetFocusedElement(nsnull);    UpdateCommands("blur");  }  return NS_OK;}