title: Facebook connect button with custom image
body: <p>I need to use custom image for Facebook connect button.
  Here's standard code from Facebook:</p>
  
  <pre><code>&lt;div id="fb-root"&gt;&lt;/div&gt;
  &lt;script&gt;(function(d, s, id) {
    var js, fjs = d.getElementsByTagName(s)[0];
    if (d.getElementById(id)) return;
    js = d.createElement(s); js.id = id;
    js.src = "//connect.facebook.net/en_GB/all.js#xfbml=1&amp;appId=486357154765214";
    fjs.parentNode.insertBefore(js, fjs);
  }(document, 'script', 'facebook-jssdk'));&lt;/script&gt;
  </code></pre>
  
  <p>To display button:</p>
  
  <pre><code>&lt;div class="fb-login-button" data-show-faces="false" data-width="200" data-max-rows="1"&gt;&lt;/div&gt;
  </code></pre>
  
  <p>Any idea?</p>
  
  <p>Cheers guys!</p>