Add Facebook and Twitter to the bottom of each post

Add Facebook and Twitter to the bottom of each post

function share_this($content){ 
 
if(!is_feed() && !is_home()) { 
$content .= '<div class="share-this"> 
<a href="http://twitter.com/share" 
 
class="twitter-share-button" 
data-count="horizontal">Tweet</a> 
<script type="text/javascript" 
src="http://platform.twitter.com/widgets.js"></script> 
 
<div class="facebook-share-button"> 
<iframe
src="http://www.facebook.com/plugins/like.php?href='.
 
urlencode(get_permalink($post->ID)) 
.'&amp;layout=button_count&amp;show_faces=false&amp;width=200&amp;action=like&amp;colorscheme=light&amp;height=21" 
scrolling="no" frameborder="0" style="border:none; 
overflow:hidden; width:200px; height:21px;" 
allowTransparency="true"></iframe> 
</div> 
</div>'; 
} 
 
return $content;
} 
add_action('the_content', 'share_this');