<html xmlns="http://www.w3.org/1999/xhtml">
<!-- Use an unload handler to prevent bfcache from messing with us -->
<body onunload="parent.childUnloaded = true;">
  <select id="select">
    <option>aaa</option>
    <option>bbbb</option>
  </select>

  <textarea id="textarea">
  </textarea>

  <input type="text" id="text" />
  <input type="password" id="password" />
  <input type="checkbox" id="checkbox" />
  <input type="radio" id="radio" />
  <input type="image" id="image" />
  <input type="submit" id="submit" />
  <input type="reset" id="reset" />
  <input type="button" id="button input" />
  <input type="hidden" id="hidden" />
  <input type="file" id="file" />

  <button type="submit" id="submit button"></button>
  <button type="reset" id="reset button"></button>
  <button type="button" id="button"></button>
</body>
</html>