If you want all your radio buttons to be part of the same group their names must all be the same. So you shouldn't be indexing them like you are. I'm not sure why you think you need to do that but just remove the  indexes from the names.
Also, I am moving this to the JSP forum.
Arthur, where are your pants? Check under this tiny ad.
Free, earth friendly heat - from the CodeRanch trailboss