title: Quick like button on Tumblr
body: <p>Can anybody explain me how the like button in this <a href="http://cicerontheme.tumblr.com/" rel="nofollow">page</a> works?</p>
  
  <p>As you can see,once the whole page finishes loading, hovering on a post or a picture would show a couple of buttons, including a like button(the heart shape one on the bottom left corner).</p>
  
  <p>Can anybody explain how it works? I've been trying to figure it out for a while now, trying the script on the source code, but to no avail.</p>