On Fri, 18 Sep 2009, Carlos Konstanski wrote: > Good advice. I'll do it! Thank you. Carlos, "Python Users Group -- Portland, Oregon USA" <portland at python.org> Carpe weekend, Rich -- Richard B. Shepard, Ph.D. | Integrity Credibility Applied Ecosystem Services, Inc. | Innovation <http://www.appl-ecosys.com> Voice: 503-667-4517 Fax: 503-667-8863