https://www.infoflora.ch/assets/js/onepager.js

1var onepagerSubNavBtn = document.querySelector(".onepager-subnav button");
2var onepagerSubNavBullets = document.getElementById("onepager-subNavBullets");
3
4for (let idx = 0; idx < $(".onepager-subnav .collapse ul a").not(".hidden").length; idx++) {
5    onepagerSubNavBullets.appendChild(
6        document.createElement('div')
7    );        
8}
9
10
11function updateSlideNav() {
12    var index = $(".onepager-subnav .collapse ul .active").index();
13    if (index >= 0) {
14        var title = $(".onepager-subnav ul .active li")[1].innerHTML;
15        if (title) {
16            onepagerSubNavBtn.children[0].innerHTML = title;
17            $("#onepager-subNavBullets .active").removeClass("active");
18            onepagerSubNavBullets.children[index].classList.add("active");
19        }
20    }
21}
22
23/*
24 * slide-nav
25 * ES6 Vanilla.js navigation plugin to simple use on one-page websites.
26 * https://github.com/qmixi/slide-nav
27 *
28 * A project by Piotr Kumorek
29 * Released under the MIT license.
30*/
31
32window.slide = new SlideNav({ speed: 40, hideBoxAfterSelect: true });