Stephen contributed:

It's simple but for first timers like myself - it can prove helpful, especially the first few lines of easy to read codes. I believe my codes include some good practices to follow such as not using any "Zero" variables.... here it goes....

To download Stephen's files, click on:
www.appdigsupport.com/ADI_Files/Stephen012503.PGM
www.appdigsupport.com/ADI_Files/StephenSystem.prj