nsAutoEditBatch( nsIEditor *aEd) : mEd(do_QueryInterface(aEd)) { if (mEd) mEd->BeginTransaction(); }
nsAutoEditBatch( nsIEditor *aEd) : nsAutoPlaceHolderBatch(aEd,nsnull)  {}
    nsAutoEditBatch( nsIEditor *aEd) : mEd(do_QueryInterface(aEd))                    { if (mEd) mEd->BeginTransaction(); }