Step 1: Add Jquery Javascripts plugin (if your blog is already added this plugin, you can skip this step)
- Go to Design / Templates >> Edit Templates >> Tick the expand widget templates box
- Find the tag </head> (Press Ctrl + F to find it)
- Place this code right above the tag </head>
- SAVE the templates
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js" type="text/javascript"></script>
- Go to Page Elements / Layout >> Add a Gadget >> HTML/Javascripts
- Place the code below into the content box
- SAVE
<script type="text/javascript">
//<!--
$(document).ready(function() {$(".w2bslikebox").hover(function() {$(this).stop().animate({right: "0"}, "medium");}, function() {$(this).stop().animate({right: "-250"}, "medium");}, 500);});
//-->
</script>
<style type="text/css">
.w2bslikebox{background: url("https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFZDFTSNRNDES_VFv-ND51gOHE5Q4iXwWL7KCdEknGYt8gsFsJIhSkjEdKO_HfWGSlkKHKXvVw5ISnmPbVGVWTwDfWBeFM9qZh2yGGFQIb6_dSidCswgUF1VwS8zDzmTq_3ITec8Lykjw7/s150/w2b_facebookbadge.pn") no-repeat scroll left center transparent !important;display: block;float: right;height: 270px;padding: 0 5px 0 46px;width: 245px;z-index: 99999;position:fixed;right:-250px;top:20%;}
.w2bslikebox div{border:none;position:relative;display:block;}
.w2bslikebox span{bottom: 12px;font: 8px "lucida grande",tahoma,verdana,arial,sans-serif;position: absolute;right: 6px;text-align: right;z-index: 99999;}
.w2bslikebox span a{color: #808080;text-decoration:none;}
.w2bslikebox span a:hover{text-decoration:underline;}
</style><div class="w2bslikebox" style=""><div><iframe src="http://www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fpages%2FBlog-On-Blogspot%2F114178088675094&width=245&colorscheme=light&show_faces=true&connections=9&stream=false&header=false&height=270" scrolling="no" frameborder="0" scrolling="no" style="border: medium none; overflow: hidden; height: 270px; width: 245px;background:#fff;"></iframe><span>/ <a href="http://www.blogonblogspot.com/">+Gadget</a></span></div></div>