When comparing two revisions in WebSVN, you may get a very long set of diffs. This user script adds an auto-hiding sidebar with a list of the filenames. Mouse over the blue bar at the side of the page to display the sidebar. Each filename in the sidebar is a link that jumps to the relevant set of diffs within the page.
These details are provided for information only. No information here is legal advice and should not be used as such.