Smint is a jQuery plugin that can turn any given element into a sticky menu instantly.
It has 2 main elements, a sticky navigation bar that stays at the top of the page while you scroll down and menu buttons that automatically scroll the page to the section you clicked on.
The plugin has support for smooth scrolling (which is usually used in one-page websites). The plugin is almost plug ‘n’ play and the only customization provided is “scrolling speed”.