JS不间断滚动-下

1. <div id=demo style=overflow:hidden;height:139;width:232;background:#f4f4f4;color:#ffffff><div id=demo1>

   <img src="http://www.showweb.cn/uploadfile/200901/3/143733017.jpg">

   <img src="http://www.showweb.cn/uploadfile/200812/24/1832399205.jpg">

   <img src="http://www.showweb.cn/uploadfile/200812/24/1854199833.jpg">

   <img src="http://www.showweb.cn/uploadfile/200901/2/1413155985.jpg">

   <img src="http://www.showweb.cn/uploadfile/200812/7/1244111377.jpg">

     </div>

     <div id=demo2></div>

     </div>

       <script>

       var speed=30

       demo2.innerHTML=demo1.innerHTML

       demo.scrollTop=demo.scrollHeight

       function Marquee(){

       if(demo1.offsetTop-demo.scrollTop>=0)

       demo.scrollTop+=demo2.offsetHeight

       else{

       demo.scrollTop--

       }

       }

       var MyMar=setInterval(Marquee,speed)

       demo.onmouseover=function() {clearInterval(MyMar)}

       demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}

       </script>