Sticky Menu Scroll Down and Active Problem

I need a sticky menu and when scroll down active div class.

http://www.duyarpompa.com/dmp-yangin-hidroforu/
This page i use max mega menu, when i click menu item scroll down but not active.

How can i make it ?

I want to make like this = > http://playship.net/enka/?/fonksiyonlar

The page I need help with: [log in to see the link]