<tr>
    <td class="tdLabel"><label for="myId" class="label">media1:</label></td>
    <td><select name="myName" id="myId" multiple="multiple">
    <option value=""></option>
    <option value="aaa">aaa</option>
    <option value="bbb">bbb</option>
</select>
<input type="hidden" id="__multiselect_myId" name="__multiselect_myName" value=""/>
</td>
</tr>
