<html>
<head>
<title></title>
</head>
<body onmousemove="a()">
<script type="text/javascript">
function a(){
frm1.value = event.clientX;
frm2.value = event.clientY;
}
</script>
<input type="text" id="frm1" ><input type="text" id="frm2">
</body>
</html>