sausage.js - examples - The Core API. Interesting small JavaScript library that makes navigation in large documents much easier, without overwhelming you with navigation buttons - just hover with the mouse on the right, there are visual markers for the size of the document sections and where you hover, a button appears that you can use for a direct jump. In my opinion, much less aggressive in its presentation than Flexible Nav. However, Flexible Nav of course has the advantage that you don't have to hover to see the navigation.