NS_IF_RELEASE(mParentData); NS_IF_RELEASE(mNext);
NS_RELEASE(mURL); NS_IF_RELEASE(mOwningElement); NS_IF_RELEASE(mParserToUnblock); NS_IF_RELEASE(mParentSheet); NS_IF_RELEASE(mObserver); if (mNext) { delete mNext; }
SheetLoadData::~SheetLoadData(){  NS_RELEASE(mLoader);  NS_IF_RELEASE(mParentData);  NS_IF_RELEASE(mNext);}