[code] Lên Đầu trang mới

demo : http://dj.ghequa.net/

code

Code:

<style type='text/css'>
#bttop{border:1px solid #4adcff;background:#24bde2;text-align:center;padding:5px;position:fixed;bottom:35px;right:10px;cursor:pointer;display:none;color:#fff;font-size:11px;font-weight:900; z-index:999;}
#bttop:hover{border:1px solid #424244;background:#424244;}
</style>
<div id='bttop'>Lên Nóc Nhà Nào</div>
<script type='text/javascript'>$(function(){$(window).scroll(function(){if($(this).scrollTop()!=0){$('#bttop').fadeIn();}else{$('#bttop').fadeOut();}});$('#bttop').click(function(){$('body,html').animate({scrollTop:0},800);});});</script>