ko.bindingHandlers.withSliding = {
    init: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
        return ko.bindingHandlers.with.init(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext);
    },

    update: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
        slideOut(function () {
            ko.bindingHandlers.with.update(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext);

            slideIn();
        });
    }
};