ekkak

<script>function toggles(e){if(document.formNew.ddmenuname.value=='view b' || document.formNew.ddmenuname.value=='show b') {e.style.display = "";}else  {e.style.display = "none";}}</script><form name="formNew" method="post" action="">  <label>  <select name="ddmenuname" id="ddmenuname" onchange="toggles(document.getElementById('expbroker'));return false">    <option>show c</option>    <option>show d</option>    <option>view b</option>    <option>show b</option>  </select>  </label></form><table width="200" border="1">  <tr>    <td>a</td>  </tr>  <tr id="expbroker" style="display:none">    <td>b</td>  </tr></table>