js向上无缝滚动,网站公告效果 具体代码
作者：
<!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>无标题文档</title>
<style type="text/css">
<!
-- #demo
{
overflow: hidden;
width: 220px;
float: left;
display: inline;
}
#demo ul
{
text-align: left;
margin: 0px;
padding: 0px;
width: 220px;
}
#demo ul li
{
margin-left: 5px;
display: block;
list-style: none;
font-size: 13px;
height: 26px;
padding-top: 5px;
}
-- ></style>
</head>
<body>
//这里的高度 style="height: 26px如果不确定的话，需要自定义输入，要不然如果定义高了而ul里的li没达到此高度会造成无法滚动
<div id="demo" style="height: 26px;">
<div id="demo1">
<ul>
<li>·<a href="https://www.jb51.net/">脚本之家1</a></li>
<li>·<a href="https://www.jb51.net/">脚本之家2</a></li>
<li>·<a href="https://www.jb51.net/">脚本之家3</a></li>
<li>·<a href="https://www.jb51.net/">脚本之家4</a></li>
</ul>
</div>
<div id="demo2">
</div>
<script type="text/javascript">
//文字无间断滚动代码，兼容IE、Firefox、Opera
var speed=60;
var FGDemo=document.getElementById('demo');
var FGDemo1=document.getElementById('demo1');
var FGDemo2=document.getElementById('demo2');
FGDemo2.innerHTML=FGDemo1.innerHTML
function Marquee1(){
if(FGDemo2.offsetHeight-FGDemo.scrollTop<=0)
FGDemo.scrollTop-=FGDemo1.offsetHeight
else{
FGDemo.scrollTop++
}
}
var MyMar1=setInterval(Marquee1,speed)
FGDemo.onmouseover=function() {clearInterval(MyMar1)}
FGDemo.onmouseout=function() {MyMar1=setInterval(Marquee1,speed)}
</script>
</div>
</body>
</html>