openstreetmap/openstreetmap-website — pull request #299 by samanpwbb (2013-06-10 21:00:06+00:00)
Title: Fixed changeset map

This is a simpler implementation of a fixed-positioned changeset map. Replaces #204.

The way it works: when the page scroll hits the top of the map, we add a class to the map to change it's positioning from absolute to fixed.