iframe>
<form accept-charset="iso-8859-1" target="frame1" action="/common/blank.html" id="form1">
  <input type="hidden" name="_charset_">
</form>

<iframe name="frame2" id="frame2"></iframe>
<form target="frame2" action="/common/blank.html" id="form2">
  <input type="text" name="foo">
  <button type="close" name="close" value="true">close</button>
  <button type="button" name="button" value="true">button</button>
  <button type="reset" name="reset" value="true">reset</button>
  <button type="submit" name="