Way too much duplication there and it won't scale. Do it like this: MktoForms2 :: Indie Checkboxes to Virtual Radio Set Advanced
This version uses an array of collections.
[
'input[name=myName], #myId',
'#myFieldset input[type=checkbox]',
'#anotherCbx1, #anotherCbx2'
]
This will allow checked checkboxes in only 1 of 3 collections, while allowing multiple elements to be checked within a collection.
Cool and Thx