title: Viariable tags in HtmlAgilityPack?
body: <p>I'm using this command in C#:</p>
  
  <pre><code>foreach (HtmlNode node in 
       htmlDoc.DocumentNode.SelectNodes("//tr[@class='discussion r1']"))
  </code></pre>
  
  <p>The problem is that I need all node that contains <code>rX</code>:</p>
  
  <pre><code> discussion r0
   discussion r1
   discussion r2
  </code></pre>
  
  <p>How can I select all <code>rX</code> nodes?
  And how can I select only <code>r0</code> and <code>r1</code> in one foreach?</p>