[转]JavaScript为事件处理器传递参数

方法一:
var newopen = function(id,level)
{
return function()
{
    opentree(id,level);//该函数为外部定义的一个执行函数；
}
}
x.attachEvent("onclick",newopen(id,parseInt(level)+1));
y.attachEvent("onclick",newopen(id,parseInt(level)+2));

think8848的简化代码:
if ( x.addEventListener)    //如果浏览器为Firefox
{
    x.addEventListener("click",function()
                                            {
                                                opentree(id,level);   //opentree为外部定义的一个执行函数，id,level为实参；
                                            });
}
else    //浏览器为IE
{
    x.attachEvent("onclick",function()
                                        {
                                            opentree(id,level);
                                        });
}

方法二:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title></title>
</head>
<body>
<a href="#" id="mylink">这是连接</a>

function MyLink_Click(e)
{
        alert(this.tagName);
        var target = e.srcElement || e.target;
        alert(target.href);
}

function test()
{
var mylink = window.document.getElementById("mylink");
AttachEvent("click", mylink, MyLink_Click, mylink);

}
</script>