js 向上滚动新闻代码

1，

<style>a{display:block;font-size:15px};</style>
<div id="div1" style="300px;height:68px;overflow:hidden">
<a href="javascript:">1,你可曾有过无数的梦想，</a>
<a href="javascript:">2,却在时光的流逝里幻灭 </a>
<a href="javascript:">3,你可曾对未来期待憧憬，</a>
<a href="javascript:">4,却在成长的岁月中迷失</a>
<a href="javascript:">5,CSDN中国程序员论坛</a>
<a href="javascript:">6,大家一起来</a>
<a href="javascript:">7,好象都很不错的样子</a>
</div>
<script>
var t=setInterval(myfunc,1000)
var d=document.getElementById("div1")
function myfunc(){
var o=d.firstChild
d.removeChild(o)
d.appendChild(o)
}
d.onmouseover=function(){clearInterval(t)}
d.onmouseout=function(){t=setInterval(myfunc,1000)}
</script>

2，

<div id="marquees">
   <a href="#">链接一</a><br>
   <br>
   <a href="#">链接二</a><br>
   <br>
   <a href="#">链接三</a><br>
   <br>
   <a href="#">链接四</a><br>
   <br>
</div>
<script language="JavaScript">

marqueesHeight=200;
stopscroll=false;

with(marquees){
   style.width=0;
   style.height=marqueesHeight;
   style.overflowX="visible";
   style.overflowY="hidden";
   noWrap=true;
   onmouseover=new Function("stopscroll=true");
   onmouseout=new Function("stopscroll=false");
}
document.write('<div id="templayer" style="position:absolute;z-index:1;visibility:hidden"></div>');

preTop=0; currentTop=0;

function init(){
   templayer.innerHTML="";
   while(templayer.offsetHeight<marqueesHeight){
     templayer.innerHTML+=marquees.innerHTML;
   }
   marquees.innerHTML=templayer.innerHTML+templayer.innerHTML;
   setInterval("scrollUp()",10);
}
document.body.onload=init;

function scrollUp(){
   if(stopscroll==true) return;
   preTop=marquees.scrollTop;
   marquees.scrollTop+=1;
   if(preTop==marquees.scrollTop){
     marquees.scrollTop=templayer.offsetHeight-marqueesHeight;
     marquees.scrollTop+=1;
   }
}
</script>