<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script language="javascript">

 var theP; //P标签对象
 
var show=function(msg){ //直接定义 function show(msg) 效果是一样的
 return function(){ 
alert(msg+" from show()");

 if(window.addEventListener){ //FF etc.
 theP.removeEventListener("click", theP.show11, false);
 }
 else{ //IE
 theP.detachEvent("onclick", theP.show11);
 }
 }
 }

 var show2=function(msg){ //直接定义 function show2(msg) 效果是一样的
 return function(){ 
alert(msg+" from show2()");
 }
 }
 
function showDef(){
 alert("showDef()"); 
 
if(window.addEventListener){ //FF etc.
 theP.removeEventListener("click", showDef, false);
 }
 else{ //IE
 theP.detachEvent("onclick", showDef);
 }
 }
 
window.onload=function(){
 theP=document.getElementById("pid");
 
theP.show11=show("可以detach的带参数方法");
 
if(window.addEventListener) // not IE
 {
 //for FF.etc
 theP.addEventListener("click", theP.show11, false);
 theP.addEventListener("click", showDef, false);
 }
 else
 {
 //for IE 
theP.attachEvent("onclick", theP.show11);
 theP.attachEvent("onclick", show2('不能detach的带参数方法'));//区别于上一个，这里不能detach
 
theP.attachEvent("onclick", showDef); //无参数的方法直接写
 } 
}
</script>

</head>

<body >
<div >
 <p id="pid">Click Me</p>
</div>
</body>
</html>