title: Set the text in a span
body: <p>I have this span</p>
  
  <pre><code>&lt;a title="Prev" data-event="click" 
     data-handler="prev" class="ui-datepicker-prev   ui-corner-all"&gt;
       &lt;span class="ui-icon ui-icon-circle-triangle-w"&gt;Prev&lt;/span&gt;
  &lt;/a&gt;
  </code></pre>
  
  <p>I need to set the text of the span to be <code>&lt;&lt;</code> instead of its current text <code>Prev</code>.</p>
  
  <p>I tried this below, but it didn't change the text as I'd expected. How can this be done?</p>
  
  <pre><code> $(".ui-icon .ui-icon-circle-triangle-w").html('&lt;&lt;');
  </code></pre>