Ok thank you Ibrahim, i go to try, i have been a problems with the model and i was resolving that problems, today i hope to make some with the that you say to me... Thank you... -- Ing. Rafael E. Mundaray M. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://gradsusr.org/pipermail/gradsusr/attachments/20070327/d568330c/attachment.html