title: XSLT: remove empty elements under specific node
body: <p>input</p>
  
  <pre><code> &lt;person&gt;
      &lt;address&gt;
         &lt;city&gt;NY&lt;/city&gt;
         &lt;state&gt;&lt;/state&gt;
         &lt;country&gt;US&lt;/country&gt;
      &lt;/address&gt;
      &lt;other&gt;
         &lt;gender&gt;&lt;/gender&gt;
         &lt;age&gt;22&lt;/age&gt;
         &lt;weight/&gt;
      &lt;/other&gt;
   &lt;/person&gt;
  </code></pre>
  
  <p>i only want to remove empty elements from the 'other' node, also the tags under 'other' are not fixed. </p>
  
  <p>output </p>
  
  <pre><code>&lt;person&gt;
      &lt;address&gt;
         &lt;city&gt;NY&lt;/city&gt;
         &lt;state&gt;&lt;/state&gt;
         &lt;country&gt;US&lt;/country&gt;
      &lt;/address&gt;
      &lt;other&gt;
         &lt;age&gt;22&lt;/age&gt;
      &lt;/other&gt;
   &lt;/person&gt;
  </code></pre>
  
  <p>I'm new to xslt so pls help..</p>