<!DOCTYPE html>
<html>
<head>
<title>cc01</title>
<meta charset="utf-8">
<script type="text/javascript">
function showMes(){
alert('hello world!');
}
var btn3 = document.getElementById('btn3');
var eventUtil={
addHandler:function(element,type,handler){
if (element.addEventListener) {
element.addEventListener(type,handler,false);
}else if (element.attachEvent) {
element.attachEvent('on'+type,handler);
}else{
element['on'+type]=handler;
}
},
removeHandler:function(element,type,handler){
if (element.removeEventListener) {
element.removeEventListener(type,handler,false);
}else if (element.detachEvent) {
element.detachEvent('on'+type,handler);
}else{
element['on'+type]=null;
}
}
}
eventUtil.addHandler(btn3,'click',showMas);
</script>
</head>
<body>
<div id="box">
<input type="button" id="btn" value="button1">
<input type="button" id="btn2" value="button2">
<input type="button" id="btn3" value="button3">
</div>
</body>
</html>
我爱吃牛排
始终上路过
一只会编程的狗子
慕的地6079101
夺命小书生
nul诺
萧欢打靶把营归