获取鼠标在图片坐标位置的小例子

<div id="mouse">鼠标不在图片上</div>
<div id="img" onMouseMove="move();" onMouseOut="out();" style="position:absolute;top:100px;left:200px;"><img src="" width="400" height="300"></div>
<script>...
    function move()...{
        var img=document.getElementById("img");
        document.getElementById("mouse").innerHTML=(window.event.clientX-img.offsetLeft)+":"+(window.event.clientY-img.offsetTop);
    }
    function out()...{
        document.getElementById("mouse").innerHTML="鼠标离开图片"
    }
</script>