Wonders of Interconnectivity
Fed up with how ghastly and unusable the UK National Railway site is, two intrepid individuals have gone ahead and remade the system in a way that is workable, quick, useful, and browser-compatible. No, they're not pretty, but they'll get you where you want to go quite quickly. Which I suppose goes against the ethos of British railway systems.
Sadly, they're almost certainly in conflict with the Terms and Conditions of the website itself. Someone with more knowledge of copyright law (and particularly English copyright law) would be required to judge this.  Pity if it is, though.
(Link via NTK.)
 It goes without saying that this isn't legal advice, as I'm neither qualified or allowed to give it. Really, I hope it's fair use.