https://www.vilna.co.il/wp-content/plugins/wipi-builder/js/fl-side-nav.js?ver=1.4.1.2

1;(function($) {
2    if($('body').hasClass('fl-disable-side-nav') == false) {
3        var wrapper = $('<div />').addClass('fl-side-nav-wrapper'),
4            nav = $('<ul />').addClass('fl-side-nav').appendTo(wrapper),
5            $rows = $('[data-side-nav]'),
6            waypoints;
7
8        if ($rows.length > 0) {
9            function updateWaypoint(direction) {
10                var id = $(this).attr('id');
11
12                $('.fl-side-nav-item', wrapper).removeClass('active');
13                $('.fl-side-nav-link[href="#' + id + '"]', wrapper).parents('.fl-side-nav-item').addClass('active');
14            };
15
16            waypoints = $rows.waypoint({
17                handler: updateWaypoint,
18                offset: 25
19            });
20
21            $rows.each(function () {
22                var item = $('<li />').addClass('fl-side-nav-item').appendTo(nav),
23                    link = $('<a />').addClass('fl-side-nav-link')
24                        .attr('href', '#' + $(this).attr('id'))
25                        .data('target', $(this).attr('id'))
26                        .text($(this).data('side-nav'))
27                        .appendTo(item);
28
29                if ($(this).data('side-nav').length <= 0) {
30                    link.addClass('no-text');
31                }
32            });
33
34            wrapper.appendTo($('body'));
35        }
36    }
37
38}(jQuery));