学习技巧：JS不间断向下滚动

<div id=demo style=overflow:hidden;height:300;width:500;background:#f4f4f4;color:#ffffff><div id=demo1> <img src="http://www.geekg.com/files/images8/20070722233532H.jpg"> <img src="http://www.geekg.com/files/images6/20070718000229n.jpg"> <img src="http://www.geekg.com/files/images8/20070724004138e.jpg"> <img src="http://www.geekg.com/files/images8/200707240019131.jpg"> <img src="http://www.geekg.com/files/images8/20070722234005h.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> 
          
提示:CTRL+A全部复制再运行，您也可以先修改部分代码再运行，复制代码功能在Firefox下无效。