updated jquery

- updated jquery to version 3.2.1
- updated swipebox
- updated smooth-scroll

js/smooth-scroll.js

@@ -1,14 +1,51 @@
-$(function() {
-  $('a[href*=#]:not([href=#]):not(.control-button)').click(function() {
-    if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
+//From https://css-tricks.com/snippets/jquery/smooth-scrolling/#article-header-id-1
+// Select all links with hashes
+$('a[href*="#"]')
+  // Remove links that don't actually link to anything
+  .not('[href="#"]')
+  .not('[href="#0"]')
+  .click(function(event) {
+    // On-page links
+    if (
+      location.pathname.replace(/^\//, '') == this.pathname.replace(/^\//, '') && location.hostname == this.hostname
+    ) {
+      // Figure out element to scroll to
       var target = $(this.hash);
-      target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
+      target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');
+      // Does a scroll target exist?
       if (target.length) {
-        $('html,body').animate({
+        // Only prevent default if animation is actually gonna happen
+        event.preventDefault();
+        $('html, body').animate({
           scrollTop: target.offset().top
-        }, 1000);
-        return false;
+        }, 1000, function() {
+          // Callback after animation
+          // Must change focus!
+          var $target = $(target);
+          $target.focus();
+          if ($target.is(":focus")) { // Checking if the target was focused
+            return false;
+          } else {
+            $target.attr('tabindex','-1'); // Adding tabindex for elements not focusable
+            $target.focus(); // Set focus again
+          }
+        });
       }
     }
   });
-});
+
+
+// $(function() {
+//   $('a[href*=#]:not([href=#]):not(.control-button)').click(function() {
+//     if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'') && location.hostname == this.hostname) {
+//       var target = $(this.hash);
+//       target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
+//       if (target.length) {
+//         $('html,body').animate({
+//           scrollTop: target.offset().top
+//         }, 1000);
+//         return false;
+//       }
+//     }
+//   });
+// });