能否为onclick事件动态加js代码?

<input type="button" name="b1" id='b1' value="text" onclick="alert('test 1')" />
我想通过 js 来修改 b1的onclick事件的代码，在原来的代码基础上，增加 alert('test 2'); 这行代码，请注意, onclick事件的代码是服务器动态生成的，我要做的是在原来代码的基础上，增加一些代码.

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object.attachEvent(sEvent, fpNotify);
如:attachEvent ('onmouseout', Restore);function Restore()
{

}
object.attachEvent(sEvent, fpNotify);
如:attachEvent ('onmouseout', Restore);function Restore()
{

}
<HTML>
<HEAD>
<script language="javascript">
attachEvent("onblur", blur);function blur()
{
  document.all.form.username.attachEvent("onblur", blur);
  if(event.srcElement == document.all.form.username){
    alert("efewef");
  }
}
</script>
</HEAD>
<BODY>
<form name="form">
<input type="text" name="username" onblur="alert('hello')">
</form>
</BODY>
document.getElementById('b1').addEventListener(
    'click',function(ev){alert('test2');}, false
);
试试这个
function bind(o,evt,fn,cb){
var aE='attachEvent';
var aEL='addEventListener';
if(!o[aE]&&o[aEL]){
return o[aEL](evt,fn,!!cb);
}
return o[aE]('on'+evt,fn);
}
bind(document.getElementById('b1'),'click',function(){alert('test 2');});
这个只适用IE用，有没有适合firefox的?
<HTML>
<HEAD> </HEAD>
<BODY>
<form name="form">
<input type="button" name="b1" id='b1' value="text"  /> <script language="javascript">
var b1 = document.getElementById('b1');
/* 其中$str变量可以为你服务器返回的变量*/$str = 'hello world';if(b1.attachEvent){ //MSIE 方法
b1.attachEvent("onclick", function(){alertMsg($str)});
}else if(b1.addEventListener){ // W3C方法
b1.addEventListener('click',function(){ alertMsg($str)});
}function alertMsg(s){
alert(s);
}</script>
</form>
</BODY>
<!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>
<BODY>
<form name="form">
<input type="button" name="b1" id='b1' value="text"  /> <script language="javascript">
var b1 = document.getElementById('b1');var $str = 'hello ';
if(b1.attachEvent){ //MSIE 方法
b1.attachEvent("onclick", function(){alertMsg($str)});
}else if(b1.addEventListener){ // W3C方法
b1.addEventListener('click',function(){ alertMsg($str)},false); /*这行为正确代码*/
}function alertMsg(s){
alert(s);
}</script>
</form>
</BODY>
既然是从服务器中生成的.
哪input可以换成服务器控件的(asp.net)
不就可以解决你的说的么?
类似动态切入点的问题。不太好办呢？
function.prototype.createSequence(fcn,scope)=function(fcn, scope){
        if(typeof fcn != "function"){
            return this;
        }
        var method = this;
        return function() {
            var retval = method.apply(this || window, arguments);
            fcn.apply(scope || this || window, arguments);
            return retval;
        };
    };var sayHi = function(name){
    alert('Hi, ' + name);
}sayHi('Fred'); // alerts "Hi, Fred"var sayGoodbye = sayHi.createSequence(function(name){
    alert('Bye, ' + name);
});sayGoodbye('Fred'); // both alerts show
IE :document.getElementById("").attachEvent("onclick",myFunction);FF :document.getElementById("").addEventListener("click",myFunction,false);function myFunction(){
}
<input type="button" name="b1" id='b1' value="text" onclick="javascript:alert('test 1');" />
<HTML>
<HEAD>
<script language="javascript">
attachEvent("onblur", blur); function blur()
{
  document.all.form.username.attachEvent("onblur", blur);
  if(event.srcElement == document.all.form.username){
    alert("efewef");
  }
}
</script>
</HEAD>
<BODY>
<form name="form">
<input type="text" name="username" onblur="alert('hello')">
</form>
</BODY>
var bbb= document. getElementById('d1');
bbb.onclick = alert('click it');
<script type="text/javascript">
var inputcCtrls = document.body.getElementsByTagName("input");
for(m=0; m<inputcCtrls.length; m++) {
  if(inputcCtrls[m].type=="button"&&inputcCtrls[m].value=="text")
  {
    var funcHack= inputcCtrls[m].onclick;
    var strHack = String(funcHack);
    var startParenth = strHack.indexOf('{');
    strHack = strHack.substring(startParenth+1);
    var endParenth = strHack.indexOf('}');
    strHack = strHack.substring(0, endParenth-1);
    strHack = "if(confirm('Want to create a new response?')) { document.forms[0].action = 'NewForm.aspx?Source=http%3a%2f%2fservername%2fLists%2fSurveyName%2fNewForm.aspx'; } else { document.forms[0].action = 'NewForm.aspx?Source=http%3a%2f%2fservername%2fLists%SurveyName%2foverview.aspx'; } " + strHack;
    var modifyFinishBehavior = new Function(strHack);
    inputcCtrls[m].onclick = modifyFinishBehavior;
    }
}
自己定义的一部分代码+原来的代码, 测试通过.
</script>
当然可以方法简单.
<input type="button" id="b1"><script>
b1.onclick=function()
{
    .................
}
</script>
你可以随时修改这个 b1.onclick=function(){...} 中的内容. 可以动态的任意写这个东西.
这个才是我最想要的!我就是为这个发贴的. 也多谢jijiwaiwai0798的回答!
<HTML>
<HEAD>
<script language="javascript">
function attached()
{
alert("test 2");
}
function attach() {
document.getElementById("b1").attachEvent("onclick", attached);
}
</script>
</HEAD> <BODY onload="attach();">
<form id="form1">
<input type="button" name="b1" id='b1' value="text" onclick="alert('test 1')" />
</form>
</BODY>
</HTML>
<input type="button" name="b1" id='b1' value="text" onclick="fun1('test1')" /><input type="button" name="b1" id='b1' value="text" onclick="fun1('test1')" />
<script language = 'javascript'>
function fun1(obj)
{
  alert(obj);
}
</script>

这样在js中控制想弹出的字符就可以了
<input type="hidden" id="rtnStr">
<script language = 'javascript'>
function setBtnClickEnt{
    if(rtnStr != ""){
        eval(rntStr);
    }
}
</script>
不管你是ALERT还是Confirm，什么乱七八糟，只要把控件名称传给后台，任意事件可以绑定。恩。。怕报错就加TRY
我的IE火狐都不行啊，代码和没有一个样啊，是不是哪里错了啊<script src="jquery.js"></script>
<script type="text/javascript">

</script><input type="button" value="onclick" onclick="alert(1)" id="btn">
<input type="button" id="b1"> <script>
b1.onclick=function()
{
    xxxxxx
}
</script>
这里是我写的动态添加事件的脚本
    <script language="javascript" type="text/javascript" defer="defer">
// <!CDATA[        function FunctionDiver(obj) {
            debugger;
            this.a = obj;
            var accinfo = this.a.innerText;
            var accRUL = this.a.href;
            AddEvent(this.a, "onclick", function() {
                TrackAccessFunction(accinfo, accRUL)
            });        }

        function TrackAccessFunction(accinfo, accRUL) {
            alert(accinfo);
        }        function AddEvent(element, eventName, funCall) {
            if (element.attachEvent) {
                element.attachEvent(eventName, funCall)
            }
            else {
                element.addEventListener(eventName, funCall, false);
            }
        }       AddEvent(window, "onload", AddTrackAccessEvent);        function AddTrackAccessEvent() {            var alinks = document.getElementById("SiteNavigationTable").getElementsByTagName("a");            for (var i = 0; i < alinks.length; i++) {
               var functionDiver = new FunctionDiver(alinks[i]);
            }
        }       // ]]>
    </script>
    <table id="SiteNavigationTable">
        <tr>
            <td>
                <button>dadada</button>
                <a href="#">1</a>
            </td>
            <td>
                <a href="#">2</a>
            </td>
        </tr>
        <tr>
            <td>
                <a href="#">3</a>
            </td>
            <td>
                <a href="#">4</a>
            </td>
        </tr>
    </table>
关键在attachEvent 这个函数上