$(document).ready(function() {

    setTimeout(function() {
      $(".alert").alert('close');
      }, 10000);
  });

  <!-- validation  -->
  $('#login-form').on('keyup blur', 'input', function(event) {
      $('#login-form').validate({
          rules: {
            email: {
              email:true,
              required: true,
            },
            password: {
              required: true,
            },
            invoice_number: {
              required: true,
            },
          },
          messages: {
              email: {
                  email: 'Please enter valid email ',
                  required: 'Please enter email',
              },
              
              password: 'Please enter password',
          },
          errorElement: 'span',
          errorPlacement: function (error, element) {
            error.addClass('invalid-feedback');
            element.closest('.input-group').append(error);
          },
          highlight: function (element, errorClass, validClass) {
            
            $(element).addClass('is-invalid');
          },
          unhighlight: function (element, errorClass, validClass) {
            $(element).removeClass('is-invalid');
           
          },
      });
  });

  function onSubmit(token) {
    document.getElementById("demo-form").submit();
  }

  $(document).ready(function() {
    setTimeout(function() {
        $(".alert").alert('close');
    }, 10000);
  });