Scrolling Local Menu in navbar

scrolling-local-menu.js

jQuery(document).ready(function($) {

    var win_split = window.location.href.split('#');

    function gotoid(id) {
        $('html,body').animate({
            scrollTop: $("#" + id).offset().top - 150
        }, 500);
    }

    if (win_split.length > 1) {
        gotoid(win_split[1]);
    }

    $('.nav').find('a[href*=#]').not('a[href="#"]').on("click", function(e) {
        var menu_href = $(this).attr("href");
        split = menu_href.split('#');
        if (win_split[0] == split[0]) {
            //its on this page
            e.preventDefault();
            gotoid(split[1]);
            //close the mobiel menu
            $('body').removeClass('open');
        }
    });
});