title: sharepoint content query webpart: hide empty column with jquery
body: <p>I want to hide a list column in editform.aspx</p>
  
  <pre><code>&lt;/script&gt;
  &lt;script language="JavaScript"&gt;
  $(document).ready(function() 
  { $('nobr:contains("columnname")').closest('tr').hide()  });
  &lt;/script&gt;
  </code></pre>
  
  <p>It works.
  But now I want to hide it, if there is no value. How to do this?</p>