event支持火狐的问题

Question

<input id="wc" />
<script type="text/javascript">
var showMouseXY = function (e) {
var e = window.event || e;
document.getElementById("wc").value = e.clientX + " " + e.clientY;
}
document.onmousemove = showMouseXY;
</script>

Answer 1

<script>
function Func(evt)
{
if (!evt) evt = window.event;
// ...
}if(document.attachEvent)
{
document.attachEvent("click", Func);
}
else
{
window.addEventListener("click", Func, false);
}
</script>

Answer 2

写错了其中某行应该是：
document.attachEvent("onclick", Func);