1 files changed, 10 insertions, 10 deletions

diff --git a/main.js b/main.js
index d59adbf..d542434 100644
--- a/main.js
+++ b/main.js
@@ -175,7 +175,7 @@ const menu = document.getElementById('map-menu');
   const btn = document.createElement('button');
   div.appendChild(btn);
   btn.type = 'button';
-  btn.ariaExpanded = 'false';
+  btn.setAttribute('aria-expanded', 'false');
   btn.title = 'Byt kartlager';
   btn.classList.add('btn', 'btn-light');
 
@@ -185,14 +185,14 @@ const menu = document.getElementById('map-menu');
 
   const panel = document.getElementById('layer-selection-panel');
   btn.onclick = function(event) {
-    if (btn.ariaExpanded === 'true') {
-      panel.ariaHidden = 'true';
-      btn.ariaExpanded = 'false';
+    if (btn.getAttribute('aria-expanded') === 'true') {
+      panel.setAttribute('aria-hidden', 'true');
+      btn.setAttribute('aria-expanded', 'false');
       btn.classList.add('btn-light');
       btn.classList.remove('btn-dark');
     } else {
-      panel.ariaHidden = 'false';
-      btn.ariaExpanded = 'true';
+      panel.setAttribute('aria-hidden', 'false');
+      btn.setAttribute('aria-expanded', 'true');
       btn.classList.add('btn-dark');
       btn.classList.remove('btn-light');
     }
@@ -246,7 +246,7 @@ const menu = document.getElementById('map-menu');
   const btn = document.createElement('button');
   div.appendChild(btn);
   btn.type = 'button';
-  btn.ariaExpanded = 'false';
+  btn.setAttribute('aria-expanded', 'false');
   btn.title = 'Visa information';
   btn.classList.add('btn', 'btn-light');
 
@@ -257,12 +257,12 @@ const menu = document.getElementById('map-menu');
   const panel = document.getElementById('modal-info');
   const modal = new Modal(panel, {});
   panel.addEventListener('show.bs.modal', function() {
-    btn.ariaExpanded = 'true';
+    btn.setAttribute('aria-expanded', 'true');
     btn.classList.add('btn-dark');
     btn.classList.remove('btn-light');
   });
   panel.addEventListener('hidden.bs.modal', function() {
-    btn.ariaExpanded = 'false';
+    btn.setAttribute('aria-expanded', 'false');
     btn.classList.add('btn-light');
     btn.classList.remove('btn-dark');
   });
@@ -273,7 +273,7 @@ const menu = document.getElementById('map-menu');
 })();
 
 /* we're all set, show the control container now */
-container.ariaHidden = 'false';
+container.setAttribute('aria-hidden', 'false');
 
 document.getElementById('layer-topowebb_nedtonad').onchange = function(event) {
   const layer = event.target.checked ? 'topowebb_nedtonad' : 'topowebb';