modal command question

[Geoff Canyon]

Is there a way to get the modal command to open a stack centered on the screen rather 
than centered over the stack that opens it?

I'm creating a splash screen, and so far my best method is to have in the first card 
of the mainStack,

on preopenstack
  hide this stack
  put the loc of this stack into lStackLoc
  set the loc of this stack to the screenLoc
  modal stack "splash"
  set the loc of this stack to lStackLoc
  show this stack
end preopenstack

Is that the best way to do it?

Thanks

Geoff
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