$(document).on('click', '.form-callback button', function () {
    var self = $(this);
    if (self.prop('disabled')) return false;
    self.attr('disabled', true);

    var form = $('.form-callback');

    $.ajax({
      url: 'index.php?route=information/contact/send',
      type: 'post',
      data: form.find('input, textarea'),
      dataType: 'json',
      success: function(json) {
        form.find('.color__red.typo-tione').remove();
        form.find('.input-error').removeClass('input-error');
        self.removeAttr('disabled');

        if(typeof json.errors != 'undefined' && json.errors != 0){
          if(typeof json.errors != 'undefined' && json.errors != '') {
            for (i in json.errors){
              form.find('[name="' + i + '"]').parent().addClass('input-error');
              form.find('[name="' + i + '"]').after('<span class="color__red typo-tione">' + json.errors[i] + '</span>');
            }
          }
        } else if(json.errors == 0){
          form.find('[name="name"]').val('');
          form.find('[name="email"]').val('');
          form.find('textarea').val('');
          $('#modal-success').modal({
            fadeDuration: 250
          });
        }
      }
    });
  });