Topofmurrayhill, Thanks so much for your advice.With all your respect I tough this message board was for the purpose I'm using it. Maybe some day one of you will learn something for me. The ski is the limit. If you don't question you don't get answers. I have all my energy put into this and I don't see how I'm gonna fail. I have nurture myself with books and other sources. Remember that one day you where in my position (with all respect).