set title

gistfile1.js

var notify = (function() {
  var origin = document.title.replace(/^\(\d\)?/, '');
  var pattern = '(*) ';
  return {
    clear: function() {
      document.title = origin;
    },
    count: function(n) {
      document.title  = pattern.replace('*', n) + origin;
    }
  }
}());