<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<title>回到顶部</title>
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/popwin.js"></script>
<style>
html,body {height:3200px}
html,body,form,input,span,p,img,ul,ol,li,dl,dt,dd {margin:0; padding:0;border:0}
a { text-decoration:none}
a:hover {text-decoration:underline}
#moquu_top{ z-index:2;width:50px;height:50px;right:30px; position:fixed;cursor:pointer;bottom:60px;background:#f00 url(../images/sbtn.png) 0 -101px;}
#moquu_top:hover {background:#ff0 url(../images/sbtn.png) -50px -101px} </style>
</head>
<body>
<a id="moquu_top" href="javascript:"></a>
</body>
</html>
//返回顶部
function b() {
h = $(window).height(),
t = $(document).scrollTop()+h,
t > h ? $("#moquu_top").show() : $("#moquu_top").hide()
}
$(document).ready(function() {
b(),
$("#moquu_top").click(function() {
$(document).scrollTop(0)
})
}),
$(window).scroll(function() {
b()
});
时间： 2024-08-01 07:06:07