title: Change button style after pressed - CSS
body: <p>I'm using Zend Framework and I have a form input button with a style that I defined.
  I need to replace the main data-theme once the button gets pressed.</p>
  
  <p>I have in mind something like this:</p>
  
  <pre><code>$this-&gt;form-&gt;go-&gt;setAttrib("onclick", "this.data-theme='new_theme'");
  </code></pre>
  
  <p>.. but is not working.</p>
  
  <p>any ideas??
  thanks!</p>