TOOLBOX: Sammy.js – A Small Web Framework with Class
From the website:
Sammy tries to achieve this by providing a small ‘core’ framework and an ever-growing list of plugins for specific functionality. The core includes a simple API for defining applications which are made up primarily of routes and events. By driving application development around a small and specific API, Sammy attempts to keep your code organized while still allowing a lot of breathing room to define your own style and structure.