Flash form with check and list boxes

hi there, i am in a bit of a mix because i have a flash form with checkboxes and list boex and i am unsure how to relate them toi the form i am doing. i understand giving a text field a var name and lining that to the php/pl script which will use the same vars but in flashj how do i set a var for a checkbox or list box. i am very confused

any help would be grateful