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<html>
<head></head>
<body>
<div id='he'>biadu</div>
<script>
function addEventSimple(obj,evt,fn) {
if (obj.addEventListener)
obj.addEventListener(evt,fn,false);
else if (obj.attachEvent)
obj.attachEvent('on'+evt,fn);
}
var a = document.getElementById('he');
function test (){
console.log('function');
}
console.log(a.id);
addEventSimple(a,'click',test);
console.log(a.onclick);
</script>
</body>
</html>