title: Extracting specific value from a variable in XSLT
body: <p>Suppose Variable name="var" is having this below XML</p>
  
  <pre><code>&lt;a&gt;
    &lt;b&gt;
      &lt;bb&gt;234&lt;/bb&gt;
    &lt;/b&gt;
    &lt;c&gt;345&lt;/c&gt;
    &lt;d&gt;456&lt;/d&gt;
  &lt;/a&gt;
  </code></pre>
  
  <p>How Can only access bb inside var? something like <em>value-of select="<strong>$var/a/b/bb</em></strong>".</p>
  
  <p>Is there any way ?</p>