绑定多个事件
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
#box1{
width:100px;
height:100px;
background: red;
}
#box2{
width:200px;
height:200px;
background: blue;
}
</style>
<script>
function addEvent(obj,ev,fn){
if(obj.attachEvent){obj.attachEvent(‘on‘+ev,fn);
}else{obj.addEventListener(ev,fn,false)}
}
window.onload=function(){
var oBox1=document.getElementById("box1");
var oBox2=document.getElementById("box2");
addEvent(oBox1,‘click‘,function(){
oBox2.style.background=‘green‘;
});
addEvent(oBox1,‘mouseover‘,function(){
this.style.background=‘purple‘;
});
addEvent(oBox1,‘mouseout‘,function(){
this.style.background=‘red‘;
});
}
</script>
</head>
<body>
<div id="box1"></div>
<div id="box2"></div>
</body>
</html>
原文：http://www.cnblogs.com/yang0902/p/5703763.html