-- Method 1:
-- this script in either the stack script or the card script to get position relative to the current stack window
on mouseMove pMouseH,pMouseV
   put pMouseH,pMouse
end mouseMove

-- Method 2:
-- this script can go anywhere to get current position relative to the current stack window
put mouseLoc()

-- Method 3:
-- this script can go anywhere to get current position relative to the current stack window
put the mouseLoc

-- Method 4:
-- this script can go anywhere to get current position relative to the current window
put the mouseH &","& the mouseV

To get the mousePosition relative to the current screen instead of relative to the current stack window use the screenMouseLoc keyword
example results:
117,394 -- relative to current window
117,394 -- relative to current window
117,394 -- relative to current window
148,521 -- relative to current screen