Thanks so much to everyone for the programming links and advice.

Many approaches to consider.

John,
I have also found it difficult to understand some explanations in certain tutorials and tend to jump over to another like Mikro to get some grasp of what they mean.

Started to think it was just my brain getting older and unable to suck in the info like it used to do.

Gompy,
Had a quick look at the site in UK ...getting a bit late here so look more tomorrow..

Thanks again.......