来高手看一看这个事件处理器怎么运行不了呀？
<!DOCTYPE html>
<html>
<head>
<title>无标题文档</title>
<script>
function po(){
var out="";
document.getElementById("flow").onclick=function(e){
if(!e) {var e=window.event;}
for(i in e){
out=out+i+"="+e[i]+"<br/>";}
document.getElementByld("out").innerHTML=out;
}}
window.onLoad=po;
</script>
</head>
<body>
<input id="flow" type="button" value="adwefa">
<div id="out"></div>
</body>
</html>
