<script type="text/javascript">
    $(document).ready(function(){
        $('#note').hide();
        $('form[name=login]').submit(function(){
            $('#note').slideUp();
            $.post('login.php',{username: $('[name=username]').val(), password: $('[name=password]').val()}, function(data){
                if(data.success){
                    location.href = data.redirect;
                }else{
                    $('#note').html(data.message).slideDown();
                }
            },'json');

            return false;
        });
    });

</script>


//--------------------------- login.php ----------------------------------

<?php

 include ("scripts/database.php");
 session_start();

 $username = mysql_real_escape_string($_POST['username']);
 $password = mysql_real_escape_string($_POST['password']);

 $query  = new query("SELECT * FROM admin WHERE Username ='$username' and Password='$password' LIMIT 1");
 $rows = $query->rows();

 if ($rows == 1) {
    $data['success'] = true;
    $_SESSION['adminID'] = $result['ID'];
    $data['redirect'] = '/OGBI/admin/index.php';
    //header("location:/OGBI/admin/");
 }else{
    $data['success'] = false;
    $data['message']="Invalid Username and Password !";
 }

 echo json_encode($data);


?>