Activating a Function in a Different Stack

[Bridger Maxwell]

Hey,
  Is it possible to activate a function that resides in one stack, and get
the result from a different stack?  Right now I have it set up so that Stack
A gets a request for info from stack B over the Internet.  Lets pretend that
the request is "the background color of this stack".  It puts that into a
variable called vWhat.  Then it executes do ("get" && vWhat && "of Stack
B").  Then Stack A returns the data over the Internet.  This works well for
requesting properties, but I can't get it to activate a function and put the
result in the it variable.  Is it even possible?  Is there a "send"
equivalent for functions?

   TTFN
     Bridger