pasar variable de una caja de texto a un select option..

[sonmanuel]

<select name="opciones" >
<option>Select Option</option>
<option <? if($_GET[''] == 'Uno') echo "selected";?>>Uno</option>
<option <? if($_GET[''] == 'Dos') echo "selected";?>>Dos</option>
<option <? if($_GET[''] == 'Tres') echo "selected";?>>Tres</option>
</select>