jquery scroll

<script type="text/javascript" src="js/jquery-1.7.2.min.js"></script>
<div id='#body'>
<div style='height:1999px;width:100px;background:red'></div>
<input type=button class="goTop"  value='top'/><?=mktime();?>
</div>
<script>
/*
$(document).ready(function() {
    // Code that uses $'s $ can follow here.
    $(".goTop").click(function (e)
    {
         $('html, body').animate({scrollTop: '0px'}, 800)
    });
}) ;
*/
$.noConflict();
  jQuery(document).ready(function($) {
    jQuery(".goTop").click(function (e)
    {
         jQuery('html, body').animate({scrollTop: '0px'}, 800)
    });
});
</script>