title: Add icon using jquery
body: <p>I want to add font awesome icon <code>(&lt;i class="icon-sun"&gt;&lt;/i&gt;)</code> to input before text "subscribe".</p>
  
  <p>I have</p>
  
  <pre><code>&lt;input type="submit" class="newsletter-submit" value="Subscribe"&gt;
  </code></pre>
  
  <p>And I try this</p>
  
  <pre><code>    $('.quick_newsletter .newsletter .newsletter-submit').val(&lt;i class="icon-sun"&gt;&lt;/i&gt;.'Subscribe');
  </code></pre>
  
  <p>But it doesn't work. And I see only "Subscribe" without icon.</p>
  
  <p>Thanks</p>