1.Login to your blogger dashboard--> layout- -> Edit HTML
2.Scroll down to where you see </head> tag .
3.Copy below code and paste it just before the </head> tag .
<script src='http://ajax.googleapis.com/ajax/libs/jquery/1.3.1/jquery.min.js' type='text/javascript'/>
<script type='text/javascript'>
//<![CDATA[
$(function(){
$('a[href*=#top]').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
&& location.hostname == this.hostname) {
var $target = $(this.hash);
$target = $target.length && $target || $('[name=' + this.hash.slice(1) +']');
if ($target.length) {
var targetOffset = $target.offset().top;
$('html,body').animate({scrollTop: targetOffset}, 1000);
return false;
}
}
});
});
//]]>
</script>
<!-- end scrolltop -->
4.Now scroll down where you see <body> tag .
5.Replace <body> tag with <body id='top'> .
6.Now again scroll down where you see </body> tag .
7.Copy below code and paste it just before </body> tag:
<div id='goingtop'>
<a href='#top' title='Go Top'><img src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjCxVgHE3COpt8FuFrRDL1tITu1_nFop1a9G95XKeWqfI0hI71_UV7aFUg4N3OBdf9zsqssth7D5bEylEKdNAw2JJF-zTcS29MHDwEuacyjLFUJFix1CinSIVz8lREf75UxjUjIkC0MDxFA/' style='right:20px; bottom:20px; position: fixed;'/></a></div>
Note: You can use any image instead of above image.
8.Click on save template and you are done.