<input type="radio" name="radio_choose" id="r1" accesskey="o" /><label for="r1">First Selection</label>
<input type="radio" name="radio_choose" id="r2" accesskey="t" /><label for="r2">Second Selection</label>
<input type="radio" name="radio_choose" id="r3" accesskey="h" /><label for="r3">Third Selection</label>