Selecting a Stack

[JB]

When I click on the message box it becomes the active
window and then if I click on the card in my stack that is
currently displayed it becomes the active window.

When I use the answer command it becomes the active
window but after closing the answer window my card is
not the active window.  If I click on the finder and then
on the card it becomes the active window again.

How do I select the stack from a script so it becomes the
active window.  I guess this would be used in selecting a
stack that is already opened and then selecting another
stack that is also opened.

John Balgenorth