diff --git a/core/js/public/publicpage.js b/core/js/public/publicpage.js
new file mode 100644
index 0000000..42b4164
--- /dev/null
+++ b/core/js/public/publicpage.js
@@ -0,0 +1,29 @@
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+window.addEventListener('DOMContentLoaded', function () {
+
+	$('#body-public').find('#ionos-global-nav .menutoggle').click(function() {
+		$(this).next('.popovermenu').toggleClass('open');
+	});
+
+	$('#save-external-share').click(function () {
+		$('#external-share-menu-item').toggleClass('hidden')
+		$('#remote_address').focus();
+	});
+
+	$(document).mouseup(function(e) {
+		var toggle = $('#body-public').find('#ionos-global-nav .menutoggle');
+		var container = toggle.next('.popovermenu');
+
+		// if the target of the click isn't the menu toggle, nor a descendant of the
+		// menu toggle, nor the container nor a descendant of the container
+		if (!toggle.is(e.target) && toggle.has(e.target).length === 0 &&
+			!container.is(e.target) && container.has(e.target).length === 0) {
+			container.removeClass('open');
+		}
+	});
+
+});