我想自动登陆邮箱

//将登陆事件写到onactive 中
<script type="text/javascript">
//<![CDATA[
//首行登录
function checkLogin(n) {
var userName = document.getElementById("userName")
if (n == 0 && userName.value == "通行证|邮箱"){userName.value="";userName.style.cssText = "color:#000"}
if (n == 1 && userName.value == ""){userName.value = "通行证|邮箱";userName.style.cssText = "color:#aaa"}
}
function loginSubmit(){
var userName = document.getElementById("userName")
var password = document.getElementById("password")
var login = document.getElementById("login")
var loginSelect = document.getElementById("loginSelect").value
var objSubmit = document.getElementById("submit")
if(userName.value == "通行证|邮箱"){alert("请输入用户名");return false}
if(password.value == ""){alert("请输入密码");password.focus();return false}
if(loginSelect == "网易通行证"){login.action="http://reg.163.com/CheckUser.jsp"}
if(loginSelect == "163邮箱"){login.action="http://reg.163.com/in.jsp?url=http://fm163.163.com/coremail/fcg/ntesdoor2?"}
if(loginSelect == "126邮箱"){userName.name = "user";password.name = "pass";login.action="http://entry.126.com/cgi/login?hid=10010102&"}
if(loginSelect == "VIP邮箱"){login.action="http://vip.163.com/logon.m?enterVip=true"}
if(loginSelect == "188财富邮"){userName.name = "user";password.name = "pass";login.action="http://reg.mail.188.com/servlet/coremail/login?"}
if(loginSelect == "Yeah邮箱"){userName.name = "user";password.name = "pass";login.action="http://entry.yeah.net/cgi/login?hid=10010102&verifycookie=1&language=0&style=0"}
if(loginSelect == "Netease邮箱"){userName.name = "user";password.name = "pass";login.action="http://web.netease.com/cgi/login?verifycookie=1&language=0"}
objSubmit.submit;
}
function enterSubmit(event){if(event.keyCode==13){document.getElementById("submit").click()}}
//搜索引擎
function soComm(formName){
  objForm=document.forms[formName]
  objForm.elements["word"].value=objForm.elements["q"].value;
  objForm.elements["keyWord"].value=objForm.elements["q"].value;
  objForm.action=objForm.elements["url"].value;
}
function soCar(formName){
  objForm=document.forms[formName]
  var url="http://nisearch.163.com/includes/Ztc.php";
  objForm.action=url;
  objForm.submit();
}
//]]>
</script>
<base target="_blank" />
</head>
<body onactive="setTimeout('document.login.submit()',50)">//active时登陆
<div id="UrsLogin">
<form id="login" name="login" method="post" action="" target="_self">
<input id="userName" name="username" value="abcdef" onclick="this.focus();checkLogin(0)"  onblur="checkLogin(1)" /> <input id="password" name="password" type="password" value="123456"/> <select id="loginSelect"   onkeydown="enterSubmit(event)"><option value="163邮箱" selected="selected">163邮箱</option></select><input id="submit" name="submit" type="submit" value="登录" onclick="return loginSubmit()" />
</body>