Puzzle 7

What's the secret Code?

This page looks innocent enough, but there is a hidden code.

Hint 1 : Look at the code on the page.

Hint 2 : You need to type the right values into the boxes

Hint 3 : (reversed) ?erehw retne uoy dluohs tahW .)(mroFetadilav_MM noitcnuf ni edoc eht ta kooL