João,
I echo Jamal's welcome, and add that you should have a look through the message threads and make comments. We all learn from each other, and having someone with your expertise is valuable to us all.

Cheers
John Attwood
Tamworth NSW Au

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"I spent most of my money on booze, women and fast cars, the rest I wasted" George Best (arguably one of the best footballers ever!) R I P