Facebook Like Button in Wordpress

<iframe src="http://www.facebook.com/plugins/like.php?href=<?php echo urlencode(get_permalink($post->ID)); ?>&amp;amp;layout=standard&amp;amp;show_faces=false&amp;amp;width=450&amp;amp;action=like&amp;amp;colorscheme=light" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:450px; height:25px"></iframe>