Right. I wouldn't expect nodelists to be threadsafe, but do we reuse nodelists, or would independent calls to retrieve the same nodelist return separate (non-entangled) objects?
I would expect the latter, since there could be several nodelist accesses in progress at once even for a single thread. As I said, trying to use the DOM as if it was partly thread-safe is a cheat; you have to know exactly what you can and can't get away with. It's better to implement proper thread-locking in the application code. ______________________________________ "... Three things see no end: A loop with exit code done wrong, A semaphore untested, And the change that comes along. ..." -- "Threes" Rev 1.1 - Duane Elms / Leslie Fish (http://www.ovff.org/pegasus/songs/threes-rev-11.html)