title: fill list with attribute value and compare another attribute value from xsl using xpath
body: <p>My XML is:</p>
  
  <pre><code>&lt;root&gt;
  &lt;emps&gt;
  &lt;emp id="1" name="alpha" city="tt" /&gt;
  &lt;emp id="2" name="beta" city="pp" /&gt;
  &lt;emp id="3" name="gamma" city="tt" /&gt;
  &lt;/emps&gt;
  &lt;/root&gt;
  </code></pre>
  
  <p>and I want to fill combo list with all the employees where city='tt'</p>
  
  <p>Thanks in advance.</p>