jquery取得鼠标坐标,兼容火狐

jquery获得鼠标坐标,兼容火狐
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7"/>
<meta name="auther" content="fq" />
<title>获取鼠标坐标</title>

</head>

<body>
<script type="text/javascript">
function mousePosition(ev){
     if(ev.pageX || ev.pageY){
      return {x:ev.pageX, y:ev.pageY};
      }
      return {
       x:ev.clientX + document.body.scrollLeft - document.body.clientLeft,
       y:ev.clientY + document.body.scrollTop  - document.body.clientTop
       };
 }

function mouseMove(ev){
    ev = ev || window.event;
    var mousePos = mousePosition(ev);
    document.getElementById('xxx').value = mousePos.x;
  document.getElementById('yyy').value = mousePos.y;
}

document.onmousemove = mouseMove;
</script>
X:<input id="xxx" type="text" />  Y:<input id="yyy" type="text" />
</body>
</html>