$(".accordion-auth .menu_name").click(function(){
            $(this).next(".menu_block").slideToggle("fast")
            .siblings(".menu_block:visible").slideUp("fast");
            //$(this).toggleClass("active");
            $(this).siblings(".menu_name").removeClass("active");

            $( ".accordion-checkout" ).accordion({
                collapsible: true
            }).accordion("activate", -1);
            
        });