<html>
<script language="javascript">
function bb(xx){
alert(xx);
}
</script>
<body>
<table border="1" onmouseover="alert('已经进入表格!')">
<tr>
<td><input type="text" name="t1"></td>
</tr>
<tr>
<td><input type="text" name="t2"></td>
</tr>
<tr>
<td><input type="text" name="t3"></td>
</tr>
</body>
</html>
<script language="javascript">
function bb(xx){
alert(xx);
}
</script>
<body>
<table border="1" onmouseover="alert('已经进入表格!')">
<tr>
<td><input type="text" name="t1"></td>
</tr>
<tr>
<td><input type="text" name="t2"></td>
</tr>
<tr>
<td><input type="text" name="t3"></td>
</tr>
</body>
</html>
www.bjcan.com/hengxing/more.asp好像是event.x什么的方法
document.getElementById("表格id").style.left
document.getElementById("表格id").style.top
试试看