https://www.youtube.com/watch?v=-5wpm-gesOY -- Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 <merlyn at stonehenge.com> <URL:http://www.stonehenge.com/merlyn/> Perl/Unix/Dart consulting, Technical writing, Comedy, etc. etc. Still trying to think of something clever for the fourth line of this .sig