title: How to glue description from my xml source in xslt 1.0
body: <p>I have question how to glue two or more description in this case.
  Source code is here:</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8" ?&gt;
      &lt;Document&gt;
      &lt;Number&gt;739&lt;/Number&gt;
      &lt;Date&gt;2017-05-31&lt;/Date&gt;
      &lt;Amount&gt;204.46&lt;/Amount&gt;
      &lt;FormOfPayment&gt;2&lt;/FormOfPayment&gt;
      &lt;Customer&gt;
        &lt;Id&gt; 10000&lt;/Id&gt;
        &lt;Name&gt;Auto Car Parts&lt;/Name&gt;
      &lt;/Customer&gt;
      &lt;DocumentItems&gt;
        &lt;Item&gt;
          &lt;Amount&gt;36.59&lt;/Amount&gt;
          &lt;Date&gt;2017-05-31&lt;/Date&gt;
          &lt;SourceDoc&gt;
            &lt;Number&gt;1571/05/2017/ZO&lt;/Number&gt;
            &lt;Date&gt;2017-05-26&lt;/Date&gt;
          &lt;/SourceDoc&gt;
        &lt;/Item&gt;
        &lt;Item&gt;
          &lt;Amount&gt;167.87&lt;/Amount&gt;
          &lt;Date&gt;2017-05-31&lt;/Date&gt;
          &lt;SourceDoc&gt;
            &lt;Number&gt;0491/05/2017/ZO&lt;/Number&gt;
            &lt;Date&gt;2017-05-12&lt;/Date&gt;
          &lt;/SourceDoc&gt;
        &lt;/Item&gt;
      &lt;/DocumentItems&gt;
      &lt;/Document&gt;
  </code></pre>
  
  <p>I can`t find some function in xslt 1.0 which I can glue node from section Document/DocumetItems/Item/SourceDoc/Number to one variable. The source code I should to get is in this example like this:</p>
  
  <pre><code>     &lt;DocumentNumber&gt;739&lt;/DocumentNumber&gt;
       &lt;DocumentDate&gt;2017-05-31&lt;/DocumentDate&gt;
       &lt;Description&gt;1571/05/2017/ZO, 0491/05/2017/ZO&lt;/Description&gt;
  </code></pre>
  
  <p>Please help me with get Description like this. Maybe I can use for-each but how to do this?</p>