mHistoryLength = 0; mHistoryCurrentIndex = -1; mIsLoadingDoc = 0; mHistoryEntryInLoad = (nsHistoryEntry *) nsnull; mInterimPage = (nsHistoryEntry *) nsnull; mHistoryEntries = (nsVoidArray)0;
mHistoryLength = 0; mHistoryCurrentIndex = -1; mIsLoadingDoc = 0; mHistoryEntryInLoad = (nsHistoryEntry *) nsnull; mInterimPage = (nsHistoryEntry *) nsnull;
nsSessionHistory::nsSessionHistory(){                  mHistoryLength = 0;                  mHistoryCurrentIndex = -1;                  mIsLoadingDoc = 0;                  mHistoryEntryInLoad = (nsHistoryEntry *) nsnull;                   mInterimPage = (nsHistoryEntry *) nsnull;                  mHistoryEntries = (nsVoidArray)0;  NS_INIT_REFCNT();}