​x
 
<html>
<head>
<script type="text/javascript">
function cursor(event)
{
document.getElementById('trail').style.visibility="visible"
document.getElementById('trail').style.position="absolute"
document.getElementById('trail').style.left=event.clientX+10
document.getElementById('trail').style.top=event.clientY
}
</script>
</head>
​
<body onmousemove="cursor(event)">
​
<h1>请在页面上移动指针</h1>
​
<img id="trail" style="visibility:hidden" src="/i/eg_w3school.gif" />
​
</body>
​
</html>
​