$(document).ready(function(){

      $("#submit").click(

        function(){

            var username=$("#username").val();
            var password=$("#password").val();
            //DIV DEL LOADING
            $("#form_message").empty().html('<img class="loadimg-login" src="'+base_url+'assets/images/loading.gif" />');

            $.ajax({
            type: "POST",
            url: base_url+"index/login",
            dataType: "json",
            data: "username="+username+"&password="+password,
            cache:false,
            success:

              function(data){
                if (data.message == 'OK') {
                    window.location.href = data.access;
                }
                $("#form_message").html(data.message).css({'background-color' : data.bg_color}).fadeIn('slow');
              }

            });

          return false;

        });


    });