<!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"
/>
<title>jQuery滚动层,仿QQ在线客服</title>
<style type=
"text/css"
>
<!--
#qqonline {
background-color:Yellow;
border: 1px solid #fcc;
position:absolute;
top:250px;
left:18px;
width:200px;
height:120px;
}
-->
</style>
<script type=
"text/javascript"
src=
"jquery1.3.2.js"
></script>
<script type=
"text/javascript"
>
$().ready(
function
(){
$(window).scroll(
function
() {
window.setTimeout(
function
(){
var
bodyTop = 0;
if
(typeof window.pageYOffset !=
'undefined'
) {
bodyTop = window.pageYOffset;
}
else
if
(typeof document.compatMode !=
'undefined'
&& document.compatMode !=
'BackCompat'
) {
bodyTop = document.documentElement.scrollTop;
}
else
if
(typeof document.body !=
'undefined'
) {
bodyTop = document.body.scrollTop;
}
$(
"#qqonline"
).css(
"top"
, 100 + bodyTop)
$(
"#qqonline"
).text(bodyTop);
},300)
})
});
</script>
</head>
<body style=
"height:1800px"
>
<div id=
"qqonline"
>
QQ在线服务
</div>
</body>
</html>