x
 
<html>
<head>
<script type="text/javascript">
var i=0
txt=new Array("trailA","trailB","trailC")
function cursor(interval)
{
pos=i*8+5
if (interval=='first')
    {
    i=0
    }
if (i==0)
    {
    xpos=event.clientX
    ypos=event.clientY
    document.all(txt[i]).style.visibility="visible"
    document.all(txt[i]).style.position="absolute"
    document.all(txt[i]).style.left=xpos+5
    document.all(txt[i]).style.top=ypos+5
    }
else
    {   
    document.all(txt[i]).style.visibility="visible"
    document.all(txt[i]).style.position="absolute"
    document.all(txt[i]).style.left=xpos+pos
    document.all(txt[i]).style.top=ypos+pos
    }
if (i==txt.length)
    {
    i=i
    }
else
    {
    i++
    }
setTimeout("cursor('next')",10)
}
</script>
</head>
<body onmousemove="cursor('first')">
<h1>请在页面上移动指针</h1>
<span id="trailA" style="visibility:hidden">W</span>
<span id="trailB" style="visibility:hidden">3</span>
<span id="trailC" style="visibility:hidden">S</span>
</body>
</html>