I want to have something who will send the answer between 2 radio box, but the user have only 10 seconds, if he choose nothing he send the current checked radio box.

Here is what I have but it doesnt work:

Code:
<META HTTP-EQUIV="Refresh" Content="10  
<FORM action=vote_web.asp method=post>
URL=sondage_web.htm">
      <INPUT type="radio" checked disabled readonly value="a" name="u_input">Oui<BR>
      <INPUT type=radio value=b name=u_input>Non<BR>
<INPUT id="menu2" type="submit" value="Votez!">

</FORM>