I'm creating a ballot for Ranking a series of Car Images 1 through 18, I've named all the First place radio buttons First, Second Place buttons as Second, Third place buttons as third, and so on to 18th, so each place can only be selected once. The question I have now is, can I limit the amout of radio buttons selected under each Car, so that Car 1 can only have one radio button selected, and onlt one First place Radio Button can be selected.
Thanks for any input you can give.