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<div style="z-index: 101; left: 100px; width: 500px; position: absolute; top: 100px; height: 200px">
<script type="text/javascript">
for(i=0;i<9999;i+=10)
{
document.write('<div style=color:#ff0000;position:absolute;left:'+i+';top:0;height:'+(20-5*(Math.sin(.00125*i)+Math.cos(.005*i)))+'%;background-color:#ff0000>@</div><');
}
setInterval('scrollTo(20*(++i%250))',50)
</script>
</div>
<div id="ToScroll" style="z-index: 101; left: 100px; width: 500px; position: absolute; top: 100px; height: 200px; overflow:scroll">
<script type="text/javascript">
for(i=0;i<9999;i+=10)
{
document.write('<div style=color:#ff0000;position:absolute;left:'+i+';top:0;height:'+(20-5*(Math.sin(.00125*i)+Math.cos(.005*i)))+'%;background-color:#ff0000>@</div><');
}
setInterval('scrollDiv()',50)
function scrollDiv() {
ToScroll.scrollLeft = 20 * (++i % 250);
}
</script>
</div>