note QM Do you need to compare nodes to nodes (references) only?<p> If so, can you compare the refs directly with <code>==</code>? (Maybe this is essentially the same as numifying in another response.) <div class="pmsig"><div class="pmsig-294463"> <p>-QM<br /> --<br /> Quantum Mechanics: The dreams stuff is made of </div></div> 781447 781447