奇怪,document 对象引用不到元素了?

用
var obj=document.all.Submit2;
或者
var obj=document.getElementById("Submit2");试一试吧。

<script language="javascript" type="text/javascript">
function getIE(e){
   var t=e.offsetTop;
   var l=e.offsetLeft;
   while(e=e.offsetParent){
      t+=e.offsetTop;
      l+=e.offsetLeft;
   }
   alert("top="+t+"\nleft="+l);

}
function GetPos()
{
    var obj=document.getElementById("Submit1");    getIE(obj);
}
</script>
</head>
<body>
    <input id="Submit2" type="submit" value="submi2" />
    <input id="Submit1" type="submit" value="Submit1" name="temp" onclick="GetPos()" />
</body>
</html>
<script language="javascript" type="text/javascript">
function getIE(e){
   var t=e.offsetTop;
   var l=e.offsetLeft;
   while(e=e.offsetParent){
      t+=e.offsetTop;
      l+=e.offsetLeft;
   }
   alert("top="+t+"\nleft="+l);

}
function GetPos()
{
    var obj=document.all['Submit2'];
    getIE(obj);
}
</script>
</head>
<body>
    <input id="Submit2" type="submit" value="submi2" />
    <input id="Submit1" type="submit" value="submit1" name="temp" onclick="GetPos()" />
</body>
</html>
function GetPos()
{
    var obj=document.all['Submit2']; //document.getElementById("Submit2");
    getIE(obj);
}