title: jqGrid navGrid search submit on Enter keypress not working
body: <p>I'd like to be able to invoke the find button on the search dialog when the "Enter/Return" key is pressed.  Unfortunately the 'savekey' option doesn't submit the form and the same way it does in the edit and add Form Editing.</p>
  
  <p>Here's a snippet of the code I'm using.</p>
  
  <pre><code>$("#list").jqGrid('navGrid', '#pager', 
      {edit: true, add: true, del: true, search: true, view: true},
  
      ...
  
      {
          caption: "Search",
          closeAfterSearch: true,
          closeOnEscape: true,
          sopt: ['cn','eq'],
          savekey: [true, 13] 
      },
  </code></pre>
  
  <p>Here's a link to the form_editing documentation I've consulted:</p>
  
  <p><a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki%3aform_editing&amp;s%5b%5d=savekey" rel="nofollow">http://www.trirand.com/jqgridwiki/doku.php?id=wiki:form_editing&amp;s[]=savekey</a></p>
  
  <p>Here's a link to the Single field searching documentation:</p>
  
  <p><a href="http://www.trirand.com/jqgridwiki/doku.php?id=wiki%3asinge_searching&amp;s%5b%5d=navgrid" rel="nofollow">http://www.trirand.com/jqgridwiki/doku.php?id=wiki:singe_searching&amp;s[]=navgrid</a></p>
  
  <p>I can't find anything to suggest this feature exists but I seems like a no-brainer.  As always, any help or direction is greatly appreciated.</p>