>>Thanks Dragan,see my final concusion bottom the thread.
>
>The work is appreciated,
>but all scrollable container I saw
>interfere with the application.
>When you click on the scroll bar,
>a Valid event fired on the active control.

Probably because the code is in the .click() and there's a simple trick to circumvent that - put the code in .when() and have it return .f., so it doesn't take focus.