这种效果就是文字 滚动一下停顿下 然后再滚动 无间断的滚动，代码如下：

<!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和火狐FireFox的符合标准的文字间隙js滚动代码</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<style type="text/css">
<!--
body { padding: 30px; font-size: 12px;}
a { color: #000; text-decoration: none; }
a:hover { color: #F60; }
#scrollWrap {
 width:300px;
 height: 18px;
 overflow: hidden;
 background: #E6F6F6;
}
#scrollMsg {
 float: left;
 text-align: left;
  padding:0 10px;
}
#scrollMsg ul {
  margin:0;
  padding:0;
}
#scrollMsg li {
 line-height: 18px;
  list-style:none;
}
-->
</style>
</head>

<body>

<div id="scrollWrap">
 <div id="scrollMsg">
  <ul>
   <li><a href="#">1111111111111</a></li>
   <li><a href="#">22222222222</a></li>
   <li><a href="#">333333333333333</a></li>
  </ul>
 </div>
</div>
<script type="text/javascript">
<!--
try{
 var isStoped = false;
 var oScroll = document.getElementById("scrollWrap");
 with(oScroll){
 noWrap = true;
 }
 
 oScroll.onmouseover = new Function('isStoped = true');
 oScroll.onmouseout = new Function('isStoped = false');
 
 var preTop = 0;
 var curTop = 0;
 var stopTime = 0;
 var oScrollMsg = document.getElementById("scrollMsg");
 
 oScroll.appendChild(oScrollMsg.cloneNode(true));
 init_srolltext();
}catch(e) {}
 
function init_srolltext(){
 oScroll.scrollTop = 0;
 setInterval('scrollUp()', 15);
}
 
function scrollUp(){
 if(isStoped) return;
 curTop += 1;
 if(curTop == 19) {
 stopTime += 1;
 curTop -= 1;
 if(stopTime == 180) {
 curTop = 0;
 stopTime = 0;
 }
 }else{
 preTop = oScroll.scrollTop;
 oScroll.scrollTop += 1;
 if(preTop == oScroll.scrollTop){
 oScroll.scrollTop = 0;
 oScroll.scrollTop += 1;
 }
 }
}
//-->
</script>
</body>

</html>