does some munging on the versionista UI to simplify click-through process

versionista.js

/ How far back to go, in milliseconds (7 days = 604800000 ms).
var threshold = new Date() - 604800000;

$('#siteView tbody tr').filter(function () {
  // Only add click handlers on the links to pages that have previous versions and that have changed recently.
  return parseInt($('td:eq(6)', this).text()) > 1 && new Date($('td:eq(8)', this).text()) >= threshold;
}).find('td:eq(3)').css('background-color', '#ff0').end().each(function () {
  // Change the behavior of the link in the "URL" column.
  var a = $('a:eq(1)', this);

  a.click(function (event) {
    // Stop the original link from opening.
    event.preventDefault();

    // Download the page at the original link.
    var url = 'https://versionista.com' + a.attr('href');
    $.get(url, function (data) {
      // The timestamps and version IDs are stored in the HTML.
      var timestamp_regex = /"fst":"(\d+)"/g;
      var version_regex = /"cid":"(\d+)"/g;

      var timestamps = [];
      while ((match = timestamp_regex.exec(data)) !== null) {
        timestamps.push(parseInt(match[1]) * 1000);
      }

      var versions = [];
      while ((match = version_regex.exec(data)) !== null) {
        versions.push(match[1]);
      }

      var compare_to_version = '0';
      timestamps.slice(1).forEach(function (timestamp, i) {
        if (timestamp >= threshold) {
          compare_to_version = versions[i + 1];
        }
      });

      window.open(url + versions[0] + ':' + compare_to_version + '/', '_blank').focus();
    })
  });
});

@titaniumbones Missing / at start of first line :)

For reference, the spreadsheet that people are filling in has the columns: Index,Who found this,Date/Time,Agency,Page Name,URL,Page View URL,Comparison URL,Description of Change,Similar Changes,IA Corroboration,PageFreeze Corroboration,Marks as Example of Significant Change,Mark as example of Exemplary Change

Consider adding code to add a button to the comparison page that would fill in (Who found this would need to be configured by a bookmarklet generator): Who found this,Date/Time,Agency,Page Name,URL,Page View URL,Comparison URL

Note: Development is now at https://github.com/edgi-govdata-archiving/version-tracking-ui