Thanks for the responses to my query. I have used a combination of several of the suggestions: a global holding the has_been_cleaned flag (because it will automatically expire at the end of a session) and empty preOpenStack handlers in the substacks (because my father always liked belt-and-braces approaches).
Sorry for the double posting. I sent the first to a miss-typed address and didn't expect it to get there. Regards -- Michael J. Lew Senior Lecturer Department of Pharmacology The University of Melbourne Parkville 3010 Victoria Australia Phone +613 8344 8304 ** New email address: [EMAIL PROTECTED] ** _______________________________________________ use-revolution mailing list [EMAIL PROTECTED] http://lists.runrev.com/mailman/listinfo/use-revolution
