How to set focus to the input box in a table using jQuery

I am trying to set focus to the next input element in a table when onkeyup event is triggered, much similar to the functionality as stated here

<table&g开发者_高级运维t;
 <tr>
  <ui:repeat value="#{alphabets}" var="alphabet">
   <td>
    <h:inputText value="#{alphabet.value}" onkeyup="jumpNext(this)" />
   </td> 
  </ui:repeat>
 </tr>
</table>

The script $(input).next("input[type=text]").focus(); is not working if input elements are inside the table. And i also tried the following script $(input).closest('td').next('td').find('input[type=text]').focus(); but couldn't able to get the expected behavior.

How to do this?

I would use:

$( 'input[type=text]', $('input').parent().next('td') ).focus();

If you don't have other inputs don't bother filtering by type