are you able to be more specific about how you want to modify the lines please?

It's good that you've provided your approach, but it's quite possible that if everyone were looking at the problem from a bit further back then we would see a different way of approaching the challenge which would not run into the same problems you have stopped on.

Your aim I'm sure is to create some functionality, not to get a specific piece of code to work.

Having said that, could you possibly provide a bit more of your code if that will help us to understand what you're trying to achieve?

You haven't given enough code yet for us to see where it's breaking specifically :o)