NS_IF_RELEASE(mLoadGroup);
ImageGroupImpl::~ImageGroupImpl(){  NS_IF_RELEASE(mDeviceContext);  if (mObservers != nsnull) {    PRInt32 i, count = mObservers->Count();    nsIImageGroupObserver *observer;    for (i = 0; i < count; i++) {      observer = (nsIImageGroupObserver *)mObservers->ElementAt(i);      if (observer != nsnull) {        NS_RELEASE(observer);      }    }    delete mObservers;  }  if (mGroupContext != nsnull) {    IL_DestroyGroupContext(mGroupContext);  }    NS_IF_RELEASE(mManager);  NS_IF_RELEASE(mNetContext);  NS_IF_RELEASE(mLoadGroup);}