https://aiaa.org/wp-content/themes/aiaa/assets/js/dbf.js?ver=1.0

1document.addEventListener('DOMContentLoaded', function () {
2    var nav = document.querySelector('.event-nav.dbf-nav');
3    if (!nav) return;
4
5    var toggle = document.querySelector('.dbf-nav-toggle');
6
7    toggle.addEventListener('click', function () {
8        var isOpen = nav.classList.toggle('dbf-nav-open');
9        toggle.setAttribute('aria-expanded', isOpen ? 'true' : 'false');
10    });
11
12    // Close menu if window is resized back above 960px
13    window.addEventListener('resize', function () {
14        if (window.innerWidth > 960 && nav.classList.contains('dbf-nav-open')) {
15            nav.classList.remove('dbf-nav-open');
16            toggle.setAttribute('aria-expanded', 'false');
17        }
18    });
19});