Problem when minimap is higher than window height.

Hi,

thanks for a great script! I noticed that when the minified/scroll version is longer than the height of the window, clicking on the minified version does not direct you to the right location in the main window.

You can replicate this behavior by opening http://django.is/ in a window with small height. If you click on the bottom part of the minified version, it should direct you to somewhere in the middle of the main page, while it actually directs you to the bottom of the page.

Any ideas on how to fix this?

Thanks,

Erik