True Jim! This is homework but the poor guy didnt hide the fact, not like other questions Ive seen... And he shown he is trying, so why not help without solving the problem?
As Jim mentionned you are in fact very close...
Where were you asked to write a script?
If you do exactly (One point after another, I counted 3) what is being asked and I know by what you already wrote, you cant go wrong!

All the best