new file mode 100644

@@ -0,0 +1,35 @@

+(function() {

+

+  var toggle = document.querySelector("#hamburger");

+  // var close = document.querySelector("#nav .close");

+  toggleHandler(toggle);

+  // toggleHandler(close);

+

+  document.addEventListener('keydown', (event) => {

+    var name = event.key;

+    if (name.toLowerCase() === 'm'

+      && event.target.nodeName.toLowerCase() !== 'input'

+      && event.target.nodeName.toLowerCase() !== 'textarea') {

+      toggle.click();

+    }

+  }, false);

+

+  function toggleHandler(toggle) {

+

+    toggle.addEventListener( "click", function(e) {

+      e.preventDefault();

+

+      ($('body').hasClass("-mobile-menu-active") === true) ? $('body').removeClass("-mobile-menu-active") : $('body').addClass("-mobile-menu-active");

+

+      if ( $('body').hasClass("-mobile-menu-active") === true ) {

+        toggle.setAttribute('aria-expanded','true');

+        document.getElementById("buttonname").textContent="Navigation verbergen";

+      } else {

+        toggle.removeAttribute('aria-expanded');

+        document.getElementById("buttonname").textContent="Navigation zeigen";

+      }

+

+    });

+  }

+

+})();