确定是点击了哪个按钮submit的方法？

Question

var toKnowClick;   <input type="submit" name="s1" onclick="javascript:toKnowClick=1;">
   <input type="submit" name="s2" onclick="javascript:toKnowClick=2;">

Answer 1

<form name="form1" onsubmit="checkSubmit();">
   <input type="submit" name="s1">
   <input type="submit" name="s2">
</form>
<script>
function checkSubmit()
{
   alert(document.activeElement.name);//code here;
}
</script>

Answer 2

event.srcElement 不行就用 document.activeElement 嘛

Answer 3

<script>
function checkSubmit()
{
   var e=document.elementFromPoint(event.clientX,event.clientY);
   if(e!=null&&e!=undefined)
   {
     alert('您点击了'+e.name);
   }
}
</script>
<form name="form1" onsubmit="checkSubmit();">
   <input type="submit" name="s1">
   <input type="submit" name="s2">
</form>