title: regex querystring SSI
body: <p>I have this URL:</p>
  
  <pre><code>http://www.xxxxxxxx.it/stagione.shtml#giornata_107
  </code></pre>
  
  <p>I tried to get number of giornata with regex like this:</p>
  
  <pre><code>&lt;!--#set var="giornata" value="$QUERY_STRING = /\#giornata\_([0-9])/"--&gt;
  </code></pre>
  
  <p>but I don't know the right syntax</p>
  
  <p>Thanks</p>