invalid login message

If you guys want to have this effect, just go into the login.js file and change the following from:

$( document ).on('submit', '#ajax-login-register-login-dialog form, #login_form', function( event ){
        event.preventDefault();
        $.ajax({
            data: "action=login_submit&" + $(this).serialize(),
            success: function( msg ){
                if ( msg == 0 ){
                    $('#ajax-login-register-login-dialog').dialog('close');
                } else {
                    window.location.replace( _ajax_login_settings.redirect );
                }
            }
        });
    });

Replace the code above with the following:

$( document ).on('submit', '#ajax-login-register-login-dialog form, #login_form', function( event ){
        event.preventDefault();
        $(document).find('.ajax-login-register-status-container').slideUp().remove();
        $.ajax({
            data: "action=login_submit&" + $(this).serialize(),
            success: function( msg ){
                if ( msg == 0 ){
                    //$('#ajax-login-register-login-dialog').dialog('close');
                    $('#ajax-login-register-login-dialog .form-wrapper').prepend('<div class="ajax-login-register-status-container"> \
                        <div class="ajax-login-register-msg-target error" style="display: block;"><div class="error-container">User not found</div></div> \
                    </div>');                   

                } else {
                    window.location.replace( _ajax_login_settings.redirect );
                }
            }
        });
    });

Make sure you don’t update the plugin or this code will get overwritten.