gistfile1.txt

//working
 $('.retweet-button').html('<a href="http://twitter.com/share" class="twitter-share-button" data-count="vertical">Tweet</a><script type="text/javascript" src="http://platform.twitter.com/widgets.js"></script>'); 
 
//not working
 var fbshare = $.getScript('http://widgets.fbshare.me/files/fbshare.js', function() {
   $('.facebook-button').html(fbshare); 
 });

 

in my view page:

<div class="retweet-button"></div>
<div class="facebook-button"></div>