denchuprov

<select id="select">
<option>Вася</option>
<option value=2>Петя</option>
<option>Терпила</option>
</select>

<script type="text/javascript">
var x=2;
document.getElementById('select').value= x;
</script>

set @i := -1;
update tablename set id = (@i := @i+1 ) order by id;