dan_the_cleaner.user.js

// ==UserScript==
// @name        Dan the Cleaner
// @namespace   Not Found
// @description Makes alpha bloggers's blogs more easy to read.
// @include     http://blog.livedoor.jp/dankogai/*
// ==/UserScript==

(function () {
  var url = "http://www.google.co.jp/search?ie=euc-jp&oe=utf-8&q=";
  var replacer = function (matchedString, dan, offset, originalString) {
    return '<a href="' + url + encodeURIComponent(dan) + '" target="_blank">404 Dan the Not Found</a>';
  };
  var entry = document.getElementsByTagName('p');
  for (var i = 0; i < entry.length; i++) {
    if (entry[i].textContent.match(/dan the\s*(.*)/i)) {
      var s = entry[i].innerHTML.replace(/dan the\s*(.*)/ig, replacer);
      entry[i].innerHTML = s;
      break;
    }
  }
})();