兼容IE和FireFox的间隔滚动代码，使用时注意把滚动内容放在div id="scrollmessage"里面，复制此代码到空白html文档中，在firefox/ie/opear上测试！本代码支持滚动速度调节, 数值越小, 速度越快；另外滚动的模式也是可以调节的，参数可以设置1或2，设为1, 可以实现间歇式的滚动; 设为2, 则是连续滚动；滚动区域的高度也可以调节。
<!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>
<title>兼容IE和FireFox的间隔滚动代码</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<style type="text/css">
<!--
body {
text-align:left;
}
#andyscroll {
width:180px;
height:180px;
overflow:hidden;
white-space:normal;
word-break:break-all;
line-height: 18px;
font-weight: bold;
margin: 5px;
float: left;
overflow:hidden;
}
#andyscroll a {
font:12px/18px tahoma;
font-weight: bold;
color: #333;
float:left;
width:100%;
text-decoration: none;
display:block;
}
#andyscroll a:hover {
font:12px/18px tahoma;
color: #F60;
}
-->
</style>
</head>
<body>
<div id="andyscroll">
<div id="scrollmessage">
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</div>
</div>
<script type="text/javascript">
<!--
var stopscroll = false;
var scrollElem = document.getElementById("andyscroll");
var marqueesHeight = scrollElem.style.height;
scrollElem. = new Function('stopscroll = true');
scrollElem. = new Function('stopscroll = false');
var preTop = 0;
var currentTop = 0;
var stoptime = 0;
var leftElem = document.getElementById("scrollmessage");
scrollElem.appendChild(leftElem.cloneNode(true));
init_srolltext();
function init_srolltext(){
scrollElem.scrollTop = 0;
setInterval('scrollUp()', 25);//的面的这个参数25, 是确定滚动速度的, 数值越小, 速度越快
}
function scrollUp(){
if(stopscroll) return;
currentTop += 1; //设为1, 可以实现间歇式的滚动; 设为2, 则是连续滚动
if(currentTop == 180) {//滚动的高度
stoptime += 1;
currentTop -= 1;
if(stoptime == 180) {
currentTop = 0;
stoptime = 0;
}
}else{
preTop = scrollElem.scrollTop;
scrollElem.scrollTop += 1;
if(preTop == scrollElem.scrollTop){
scrollElem.scrollTop = 0;
scrollElem.scrollTop += 1;
}
}
}
//-->
</script>
</body>
</html>
