function updateCartSum() {

    $.ajax({
        url: "/shop/ajax_cartsum/",
        success: function(text) {
            $("#headerbasket").html(text);
        }
    });
}

function updateUserBox() {

    $.ajax({
        url: "/shop/ajax_userbox/",
        success: function(text) {
            $("#headeruserbox").html(text);
        }
    });

}