https://speechtherapy.org.nz/_resources/co-cmd--core/client/javascript/site-alerts.js?m=1789688752

1(function () {
2    function getStorageKey(id) {
3        return 'SiteAlert_' + id + '_Dismiss';
4    }
5
6    // Called when a user closes a alert.
7    function callback(event) {
8        console.log('CLICKED');
9        var button = event.currentTarget;
10        var alertId = button.getAttribute('data-id');
11        var alert = document.getElementById('site-alert-' + alertId);
12
13        // The alert can only be closed once, so we don't need the click handler anymore.
14        button.removeEventListener('click', callback);
15
16        // Remove the alert from the page.
17        alert.parentNode.removeChild(alert);
18
19        // Make sure the alert doesn't re-appear when the page is re-loaded.
20        sessionStorage.setItem(getStorageKey(alertId), 'true');
21    }
22
23    var alertNodeList = document.querySelectorAll('.site-alert');
24    var index = 0;
25    var alertId = 0;
26    var button = null;
27
28    for (index; index < alertNodeList.length; index += 1) {
29        alertId = alertNodeList[index].getAttribute('data-id');
30
31        // Don't display alerts which have been dismissed.
32        if (sessionStorage.getItem(getStorageKey(alertId))) {
33            continue;
34        }
35
36        // Display the alert.
37        alertNodeList[index].setAttribute('aria-hidden', 'false');
38
39        // Add a click event the "dismiss" button, if it exists.
40        button = document.querySelector('#' + alertNodeList[index].id + ' .site-alert-close');
41
42        if (button) {
43            // hide close button for browsers without sessionStorage compatibility
44            if (!sessionStorage) {
45                button.style.display = 'none';
46            } else {
47                button.addEventListener('click', callback);
48            }
49        }
50    }
51}());