Due to a change of jobs, my web pages are unstable and this URL http://www.hpl.hp.com/personal/Margaret_Fleck/harness.html has quit working. Fortunately, in this case, there's a second copy of the page at http://talkbank.org/da/fleck.html Sorry for the confusion, Margaret Fleck ===== Margaret M. Fleck 510-378-3075 margaretmfleck at yahoo.com