热点新闻滚动特效的js代码

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>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>热点新闻滚动</title>
<style type="text/css">
<!--
body {
 margin: 0px;
 font-size: 12px;
 color: #938C43;
 line-height: 150%;
 text-align:center;
}
a:link{color: #9D943A;font-size:12px;}
a:hover{color: #FF3300;font-size:12px;}
a:visited{color: #9D943A;font-size:12px;}
a.red:link{color: #ff0000;font-size:12px;}
a.red:hover{color: #ff0000;font-size:12px;}
a.red:visited{color: #ff0000;font-size:12px;}
#marqueeBox{background:#f7f7f7;border:1px solid silver;padding:1px;text-align:center;margin:0 auto;}
-->
</style>
</head>

<body>
<h4>滚动新闻</h4>
<script language="JavaScript" type="text/javascript">
var marqueeContent=new Array();
marqueeContent[0]="<a href='http://www.jb51.net' target='_blank'>我们</a>";
marqueeContent[1]="<a href='http://play.jb51.net' target='_blank'>播放器之家</a>";
marqueeContent[2]="<a href='http://sc.jb51.net' target='_blank'>素材之家</a>";
marqueeContent[3]="<a href='http://mingzi.jb51.net' target='_blank'>个性名字网</a>";
var marqueeInterval=new Array();
var marqueeId=0;
var marqueeDelay=2000;
var marqueeHeight=20;
function initMarquee() {
 var str=marqueeContent[0];
 document.write('<div id="marqueeBox" style="overflow:hidden;width:250px;height:'+marqueeHeight+'px" onmouseover="clearInterval(marqueeInterval[0])" onmouseout="marqueeInterval[0]=setInterval('startMarquee()',marqueeDelay)"><div>'+str+'</div></div>');
 marqueeId++;
 marqueeInterval[0]=setInterval("startMarquee()",marqueeDelay);
}
function startMarquee() {
 var str=marqueeContent[marqueeId];
 marqueeId++;
 if(marqueeId>=marqueeContent.length) marqueeId=0;
 if(document.getElementById("marqueeBox").childNodes.length==1) {
 var nextLine=document.createElement('DIV');
 nextLine.innerHTML=str;
 document.getElementById("marqueeBox").appendChild(nextLine);
 }
 else {
  document.getElementById("marqueeBox").childNodes[0].innerHTML=str;
  document.getElementById("marqueeBox").appendChild(document.getElementById("marqueeBox").childNodes[0]);
  document.getElementById("marqueeBox").scrollTop=0;
 }
 clearInterval(marqueeInterval[1]);
 marqueeInterval[1]=setInterval("scrollMarquee()",20);
}
function scrollMarquee() {
 document.getElementById("marqueeBox").scrollTop++;
 if(document.getElementById("marqueeBox").scrollTop%marqueeHeight==(marqueeHeight-1)){
 clearInterval(marqueeInterval[1]);
 }
}
initMarquee();
</script>
</body>
</html></td>
   </tr>
 </table>