Userscript to replace iCal downloads on traintimes.org.uk with links to Google Calendar's event creation page

traintimes_gcal.user.js

// ==UserScript==
// @match http://traintimes.org.uk/*
// ==/UserScript==

(function() {

  var icals = document.getElementsByClassName("ical");
  for (var i = 0; i < icals.length; i++) {
    icals[i].href = 'http://markwoodbridge.appspot.com/ical?url=' + encodeURIComponent(icals[i].href);
  }

})();

For Chome and Firefox installation instructions see http://userscripts.org/about/installing