title: Jquery change value of span tag - reference from another div
body: <p>So my html code is:</p>
  
  <pre><code>&lt;div class="product-details"&gt;
      &lt;div class="availability in-stock"&gt;
            Availability: &lt;span&gt;In stock&lt;/span&gt;
      &lt;/div&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>I would like to use Jquery to change the span value of "in stock".  I am somewhat new to Javascript and Jquery, so how would I change that span value without it having an id to reference.</p>
  
  <p>Many thanks in advance!</p>