Владислав Бирало

<script>
    $(function () {
        $('.some_product').addClass('hide');
        $('.some_product.hide:lt(4)').removeClass('hide');

        $('.show-else').click(function () {
            $('.some_product.hide:lt(4)').removeClass('hide');
            localStorage["blockIsActive"] = "true";
        });

        if (localStorage["blockIsActive"] == "true") {
            $('.some_product.hide:lt(4)').removeClass('hide');
        }
    });
</script>