A bit of an update. Jack, I did receive the handout, thanks so very much. I finally got the thank you notes and will put them in the mail today. Again thanks to all of you that have contributed to the swap. Thanks also to all of you that have things in the mail to me for the classes also. My thinks to all on this site that have helped. A special thanks also to JC and LF for this wonderful site that is so helpful to me and all of us and my students. John