js 滚动、切换代码的搜集

JS不间断向上滚动

<div id=demo style=overflow:hidden;height:139;232;background:#f4f4f4;color:#ffffff><div id=demo1>
<img src="http://www.xxxx.com/lanren/jscode/js-0063/images/01.jpg">
<img src="http://www.xxxx.com/lanren/jscode/js-0063/images/02.jpg">
</div>
<div id=demo2></div>
</div>
   <script>
   var speed=50
   demo2.innerHTML=demo1.innerHTML
   function Marquee(){
   if(demo2.offsetTop-demo.scrollTop<=0)
   demo.scrollTop-=demo1.offsetHeight
   else{
   demo.scrollTop++
   }
   }
   var MyMar=setInterval(Marquee,speed)
   demo.onmouseover=function() {clearInterval(MyMar)}
   demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
   </script>

JS不间断向下滚动
<div id=demo style=overflow:hidden;height:139;232;background:#f4f4f4;color:#ffffff><div id=demo1>
<img src="http://www.xxxx.com/lanren/jscode/js-0063/images/01.jpg">
<img src="http://www.xxxx.com/lanren/jscode/js-0063/images/02.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>

JS不间断向左滚动
<div id=demo style=overflow:hidden;height:139;232;background:#f4f4f4;color:#ffffff><table align=left cellpadding=0 cellspace=0 border=0><tr><td id=demo1 valign=top><img src="http://www.xxxx.com/lanren/jscode/js-0063/images/01.jpg"><img src="http://www.xxxx.com/lanren/jscode/js-0063/images/02.jpg"><td>
<td id=demo2 valign=top></td></tr></table></div>
<script>
var speed=30
demo2.innerHTML=demo1.innerHTML
function Marquee(){
if(demo2.offsetWidth-demo.scrollLeft<=0)
demo.scrollLeft-=demo1.offsetWidth
else{
demo.scrollLeft++
}
}
var MyMar=setInterval(Marquee,speed)
demo.onmouseover=function() {clearInterval(MyMar)}
demo.onmouseout=function() {MyMar=setInterval(Marquee,speed)}
</script>