onchange 
<form action="" method="post" name="myform">
<select name="cars" onchange='myform.submit()'>
  <option value=""></option>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="fiat">Fiat</option>
  <option value="audi">Audi</option>
</select>
</form>

[download]
poj

In reply to Re: return values on select after submit by poj
in thread return values on select after submit by bigup401

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