Hi Bob,
this should do...
In the stack script:
on deleteTheCards
if the number of this cd<>1 then
delete this cd
else
repeat with i=1 to the number of fields of this cd
put empty into fld i of this cd
end repeat
end if
end deleteTheCards
In your button script
on mouseUp
deleteTheCards
end mouseUp
Hope this helps,
Malte