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<body onmousewheel="mousewheel()">
<span id=m></span>
</body>
<SCRIPT LANGUAGE="JavaScript">
var flag = false;
function m(n)
{
document.getElementById("m").innerHTML=n==1?"鼠标开始滚动":"鼠标停止滚动"
}
function mousewheel()
{
flag = true;
m(1);
setTimeout(wflag,100);
}
function wflag()
{
if(event==null || event.wheelDelta != 120 || event.wheelDelta != -120)
{
flag=false;
m(0);
}
if(flag)
setTimeout(wflag,100);
}
</SCRIPT>