Horrendously vague question that also looks a lot like it's a problem set as your homework which a lot of people here are naturally reluctant to do for you. We'll help with specifics, but won't do your homework for you.

Have you tried to solve this, if so can you show us what you've done so we can see where the problem actually is?

People here are generally willing to help, but generally won't solve 'How do I recode this entire CGI which you know nothing about?' questions.

Originally posted as a Categorized Answer.