(Grab the plugin on GitHub ) Here's a script that adds a sticky nav with a twist:
See the Pen by tcmulder (@tcmulder) on CodePen.
Mobile Friendly Sticky Nav
Building a Sticky Nav Bar
Sticky nav example page
Sticky Nav – Detect section, Show only on scroll up
Sticky Nav Demo
Sticky nav after scrolling past the hero section
Stickup Sticky Nav jQuery Plugin
Sticky nav bar
fancy sticky nav
Vanilla JavaScript Sticky Nav
One Page Scroll w/ Sticky Nav
JQuery - Easy Sticky Nav Bar