title: jQuery how to get number from string?
body: <p>I have this HTML:</p>
  
  <pre><code>&lt;span class="price-old" style="padding: 2px;"&gt;179,00 DKK&lt;/span&gt;
  </code></pre>
  
  <p>or it could be:</p>
  
  <pre><code>&lt;span class="price-old" style="padding: 2px;"&gt;1.750,00 DKK&lt;/span&gt;
  </code></pre>
  
  <p>How do I get the number? </p>