openlayers/openlayers — pull request #677 by sbrunner (2012-09-12 15:24:42+00:00)
Title: Substract page positions instance of mixing client and page position

- If you take this example: http://openlayers.org/dev/examples/fractional-zoom.html
- reduce the windows size to have a scrollbar
- scroll
- click on the zoombar (not the slider)
- the slider don't move on the right place

This pull request will fix this issue.