html login page with ajax


html login page with ajax

hi all... i want to create a login page using html and ajax for validation is must. please help me doing that with code...

thanks in advance

View Answers

September 4, 2012 at 3:39 PM

Here is a jsp example that accepts username and password from the user and check whether the user is valid or not by using ajax.


<script language="javascript">
function postRequest(strURL){
var xmlHttp;
var xmlHttp = new XMLHttpRequest();
else if(window.ActiveXObject){ 
var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}'POST', strURL, true);
xmlHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
xmlHttp.onreadystatechange = function(){
if (xmlHttp.readyState == 4){

function updatepage(str){
alert("Welcome User");
alert("Invalid Login! Please try again!");

function call_login(){
var username = window.document.f1.username.value;
var password = window.document.f1.password.value;
var url = "check.jsp?username=" + username + "&password=" +password ;


<form name="f1" onsubmit="return call_login();">
<table border="0" bgcolor="#CCCCFF" cellspacing="1" cellpadding="3" width="287">
<td align="left" colspan="2" width="275"><b><font size="5" color="#000080">Login</font></b></td>
<td align="right" width="81"><b><font color="#000080">User
<td width="184"><input type="text" name="username" id="user" size="20" value="" /></td>
<td align="right" width="81"><b><font color="#000080">Password:</font></b></td>
<td width="184"><input type="password" name="password" size="20" value="" /></td>
<td colspan="2" align="center" width="275"><input type="button" name="a1" value="Login" onclick="call_login()"></td>



String username=request.getParameter("username");
String password=request.getParameter("password");
if(username=="admin" && password=="admin"){


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