kPropertyAtom        = NS_NewAtom("property");
RDFTreeBuilderImpl::RDFTreeBuilderImpl(void)    : RDFGenericBuilderImpl(){    if (gRefCnt == 0) {        kTreeAtom            = NS_NewAtom("tree");        kTreeBodyAtom        = NS_NewAtom("treebody");        kTreeCellAtom        = NS_NewAtom("treecell");        kTreeChildrenAtom    = NS_NewAtom("treechildren");        kTreeColAtom         = NS_NewAtom("treecol");        kTreeHeadAtom        = NS_NewAtom("treehead");        kTreeIconAtom        = NS_NewAtom("treeicon");        kTreeIndentationAtom = NS_NewAtom("treeindentation");        kTreeItemAtom        = NS_NewAtom("treeitem");        kTitledButtonAtom    = NS_NewAtom("titledbutton");    }    ++gRefCnt;}