Hi,

Think of it like this, test1 and test2 stuff are controlled from the same main window. Test1 is on the first tab of a two tabbed screen, test2 is on the second. While you are working on page 1 you hide page 2, when you click the button to move to page 2 you hide page 1 and show page 2.

You pass parameters in exactly the same way as you pass them to a sub-routine, because test2 is exactly that.

It's the same as if you wanted to add a bit of functionality to any existing program. just add another sub-routine and call it, rather than writing a completely different program and calling it through systme or backticks.

Well, it works for me, but as always - TMTOWTDI.

J.C.