diff --git a/js/meta-box.js b/js/meta-box.js
index 38a0414..f53e794 100755
--- a/js/meta-box.js
+++ b/js/meta-box.js
@@ -1,81 +1,38 @@
-(function ($, spc) {
+jQuery(function () {
+    const $metaBox = jQuery('#spr__meta-box');
+    if (!$metaBox.length) return;
 
-    var toggleTabs = function () {
+    /**
+     * Register the click handler for the tabs
+     *
+     * Tabs can be added dynamically later on and this handler will still
+     * provide the open/close functionality
+     */
+    $metaBox.on('click', '.meta-tabs a', function (e) {
+        e.preventDefault();
+        const $tab = jQuery(this);
 
-        var $metaBox = $('#spr__meta-box'),
-            $tabLinks = $metaBox.find('.meta-tabs').find('a'),
-            $tabPanels = $metaBox.find('.meta-content').find('.tab-pane');
+        // disable all existing tabs
+        $metaBox.find('.meta-tabs li')
+            .removeClass('active')
+            .find('a')
+            .attr('aria-expanded', false);
+        $metaBox.find('.meta-content .tab-pane')
+            .removeClass('active')
+            .attr('aria-hidden', false);
 
-            try {
-                $tabLinks.each(function () {
-                    $(this).on("click", function (e) {
-                        e.preventDefault();
-                        var $link = $(this),
-                            $li = $link.closest('li'),
-                            $panel = $($link.attr('href'));
+        // enable current tab
+        $tab
+            .attr('aria-expanded', true)
+            .closest('li')
+            .addClass('active');
+        $metaBox.find($tab.attr('href'))
+            .addClass('active')
+            .attr('aria-hidden', false);
 
-                        /* close panel */
-                        if($li.hasClass('active')){
-                            //reset
-                            resetTabs($tabLinks,$tabPanels);
-
-                        /* close panel */
-                        }else{
-                            //reset
-                            resetTabs($tabLinks,$tabPanels);
-                            //current state
-                            $li.addClass('active');
-                            $link.attr('aria-expanded','true');
-                            $panel.addClass('active').attr('aria-hidden','false');
-                        }
-
-                    });
-                });
-
-
-            } catch (err) {
-                //alert('err');
-            }
-        },
-        resetTabs = function($tabLinks,$tabPanels){
-            $tabLinks.closest('li').removeClass('active');
-            $tabLinks.attr('aria-expanded','false');
-            $tabPanels.removeClass('active').attr('aria-hidden','true');
-        },
-        findJiraTickets = function(){
-            var $tickets = $('#dokuwiki__content').find('a.jiralink');
-            if($tickets.length >0){
-                var $panel = $('#spr__tab-jira'),
-                    $num = $('a[href="#spr__tab-jira"]').find('.num');
-
-                if($panel.length > 0 && $num.length > 0){
-                    $num.empty().append($tickets.length);
-                    $panel.find('> div').empty().append('<ul></ul>');
-                    var $ul = $panel.find('ul');
-                    $tickets.each(function (){
-                        var $ticket = $(this).clone();
-                        $ul.prepend('<li></li>');
-                        $ul.find('li:first-child').append($ticket);
-                    });
-                }
-            }
-        },
-        findSitemap = function(){
-            var $panel =  $('#spr__tab-toc'),
-                $toc = $panel.find('ul'),
-                $num = $('a[href="#spr__tab-toc"]').find('.num');
-            if($toc.length == 0){
-                $panel.append('<div><p>'+LANG.template.sprintdoc.meta_box_toc_none+'</p></div>');
-            }else{
-                $num.empty().append('1');
-            }
-        };
-
-    $(function () {
-        toggleTabs();
-        findJiraTickets();
-        findSitemap();
     });
 
-})(jQuery, spc);
 
+
+
+});