<form id=”two” action=”…” method=”post”>
<fieldset id=”opt”>
<legend>OPTIONS</legend>
<select name=”choice”>
<option selected=”selected” label=”none” value=”none”>
none
</option>
<optgroup label=”Group 1″>
<option label=”cg1a” value=”val_1a”>Selection group 1a
</option>
<option label=”cg1b” value=”val_1b”>Selection group 1b
</option>
<option label=”cg1c” value=”val_1c”>Selection group 1c
</option>
</optgroup>
<optgroup label=”Group 2″>
<option label=”cg2a” value=”val_2a”>Selection group 2a
</option>
<option label=”cg2b” value=”val_2a”>Selection group 2b
</option>
</optgroup>
<optgroup label=”Group 3″>
<option label=”cg3a” value=”val_3a”>Selection group 3a
</option>
<option label=”cg3a” value=”val_3a”>Selection group 3b
</option>
</optgroup>
</select>
</fieldset>
</form>