title: Concatenate multiple attribute values
body: <p>Giving this kind of XML file :</p>
  
  <pre><code>&lt;data&gt; 
      &lt;row val="3"/&gt; 
      &lt;row val="7"/&gt; 
      &lt;row val="2"/&gt; 
      &lt;row val="4"/&gt; 
      &lt;row val="3"/&gt; 
  &lt;/data&gt;
  </code></pre>
  
  <p>I need to retrieve the string '3;7;2;4;3' using XPath 1.0 so that I can create dynamic links for the Google Chart service in my XForms application.</p>
  
  <p>How can I do that ? Is it possible ?</p>