JS_DHashTableOperate(mTable, Obj, JS_DHASH_LOOKUP);
JS_DHashTableOperate(mTable, cx, JS_DHASH_LOOKUP);
    inline nsXPCWrappedJS* Find(JSObject* Obj)    {        NS_PRECONDITION(Obj,"bad param");        Entry* entry = (Entry*)            JS_DHashTableOperate(mTable, Obj, JS_DHASH_LOOKUP);        if(JS_DHASH_ENTRY_IS_FREE(entry))            return nsnull;        return entry->value;    }