Just a quick script I threw together because I was annoyed with having to open a new page to see the diff of a commit from the log view.

Quick way to get an anchor that you can just add to your bookmarks: http://jsfiddle.net/zdJ9f/embedded/result/

This abuses the DOM and good CSS practices to make things look reasonable, and does not try to prevent being called multiple times. This was actually my first time writing a bookmarklet so I don't know if there are any glaring issues that I should fix. Hope others find this useful!