MenuSpy: Highlight navigation item based on section in view
It could not be easier to use, just include the script in your page and initialize it. The items in your menu will get active class when the section referenced in your anchor is visible. It’s got a really small footprint and uses requestAnimationFrame to monitor scroll position.
Slinky: Responsive mobile-like menu plugin
A light-weight, responsive, mobile-like menu plugin.
It’s an update to a previously submitted plugin; http://www.unheap.com/navigation/horizontal-tabbed/sliding-menu/
Illustration by akselkreis