roduct_id=' + product_id + '&quantity=' + quantity,
            dataType: 'json',
            success: function(json) {
                $('.success, .warning, .attention, .information, .error').remove();
                if (json['redirect']) {
                    location = json['redirect'];
                }
                if (json['success']) {
                    $('#notification'+product_id).html('<div class="success" style="display: none;">' + json['success'] + '<img src="catalog/view/theme/default/im