https://montagschor.de/media/templates/site/cassiopeia/js/template.js?2b35f7

1/**
2 * @package     Joomla.Site
3 * @subpackage  Templates.Cassiopeia
4 * @copyright   (C) 2017 Open Source Matters, Inc. <https://www.joomla.org>
5 * @license     GNU General Public License version 2 or later; see LICENSE.txt
6 * @since       4.0.0
7 */
8
9Joomla = window.Joomla || {};
10((Joomla, document) => {
11
12  function initTemplate(event) {
13    const target = event && event.target ? event.target : document;
14
15    /**
16     * Prevent clicks on buttons within a disabled fieldset
17     */
18    target.querySelectorAll('fieldset.btn-group').forEach(fieldset => {
19      if (fieldset.getAttribute('disabled') === true) {
20        fieldset.style.pointerEvents = 'none';
21        fieldset.querySelectorAll('.btn').forEach(btn => btn.classList.add('disabled'));
22      }
23    });
24  }
25  document.addEventListener('DOMContentLoaded', event => {
26    initTemplate(event);
27
28    /**
29     * Back to top
30     */
31    const backToTop = document.getElementById('back-top');
32    function checkScrollPos() {
33      if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
34        backToTop.classList.add('visible');
35      } else {
36        backToTop.classList.remove('visible');
37      }
38    }
39    if (backToTop) {
40      checkScrollPos();
41      window.addEventListener('scroll', checkScrollPos);
42      backToTop.addEventListener('click', ev => {
43        ev.preventDefault();
44        window.scrollTo(0, 0);
45      });
46    }
47    document.head.querySelectorAll('link[rel="lazy-stylesheet"]').forEach($link => {
48      $link.rel = 'stylesheet';
49    });
50  });
51
52  /**
53   * Initialize when a part of the page was updated
54   */
55  document.addEventListener('joomla:updated', initTemplate);
56})(Joomla, document);