Script Summary: Enables pressing "j" and "k" as keyboard shortcuts to scroll to next/previous post on forums, blogs or whatever; similar to the navigation on Bloglines.com.
Defaults to jumping between header tags but can be configured per site using XPath expressions (for jump points) and regular expressions (for URLs to match).
Pre-configured for a couple of sites: LiveJournal entries and comments, Google results, Helgon.net guestbook entries, 99mac.se and SweClockers.com forum posts.
Does not work with Firefox's "find-as-you-type" activated.
