title: xslt select hard coded string with node value
body: <p>I need to add in front of every select value this hard coded string <strong>mobile/</strong></p>
  
  <p>this select hyperlink from xml:</p>
  
  <pre><code>&lt;a href="{Hyperlink/a/@href}" name="xslt"&gt;
  </code></pre>
  
  <p>I tried this but it only gets value from xslt expression:</p>
  
  <pre><code>&lt;a href="'mobile/' + {Hyperlink/a/@href}"&gt; XXX &lt;/a&gt;
  </code></pre>