Is it possible to script the choice of a tab in a tabbed button

[Shao Sean]

Look at the "menuHistory" dictionary term.

on preOpenCard
   set the menuHistory of btn "tabs" to 1
end preOpenCard

btn "tabs"  -- replace that with the actual name of your tab buttons
1  -- replace that with the actual number of the tab (in the Property 
Inspector the line number of the text equals the menuHistory)

( red | green | blue )    <-- really bad Mac OS X tabs ;-)

red = set the menuHistory to 1
green = set the menuHistory to 2
blue = set the menuHistory to 3