Pilgrim,<br><br>Now why didn't I think of that?[img]http://www.the-highway.com/w3timages/icons/stupidme.gif" alt="stupidme" title="stupidme[/img]<br><br>Thanks for the references. I'll get reading. Btw, Fowler White sometimes attends this same lecture series and has been one of the speakers in the past. Since I am a man of such high esteem on the programs committee, (OK, I'm the one who brings refreshments and cleans up) maybe I should suggest we have him speak again on this very topic.[img]http://www.the-highway.com/w3timages/icons/idea.gif" alt="idea" title="idea[/img]<br><br>Stucco