This is how awesome history.js is -> it just works.

gistfile1.js

$(window).bind("statechange", function() {
  var state = History.getState();
  load(state.url, false);
});

function load(url, push) {
  if (push === true || push === undefined)
    History.pushState(null, null, url);

  $.ajax({
    url:      url,
    dataType: "script html"
  }).success(function(response) {
    $("#results").html(response);
  });
}

searchForm.submit(function() {
  load(this.action + "?" + searchForm.serialize());
  return false;
});

$("#multiple-choices a").live("click", function() {
  load(this.href);
  return false;
});