$(document).ready(function() {
            $('#login').click(function()
            {
                var username=$("#username").val();
                var password=$("#password").val();
                var dataString = 'username='+username+'&password='+password;
            if($.trim(username).length>0 && $.trim(password).length>0)
            {
                $.ajax({
                    type: "POST",
                    url: "ajaxlogin.php",
                    data: dataString,
                    cache: false,
                    beforeSend: function(){ $("#login").val('Logging you in...');},
                        success: function(data){
                        if(data)
                        {
                            alert("works");
                            $("body").load("index.php").hide().fadeIn(1500).delay(6000);
                        }else{
                            alert("error login");
                            $('.logintable').shake();
                            $("#login").val('Login')
                            $("#error").html("<span style='color:#cc0000'>Error:</span> Invalid username and password. ");
                             }
                         }
                    });
                }
                return false;
                });
            });