https://flsenate.gov/Scripts/HomePage/Calendar.js

1var calendar = {
2    InitializeEventHandler: function () {
3        $(".item_list .item_body").hide();
4        $(".event .item_body").hide(); //home calendar
5
6        $(".item_head").click(function () {
7            toggleBody(this);
8            return false;
9        });
10
11        //Handle Expand All/Collapse all functionality.
12        $(".collapseAll").click(function () {
13            $.each($(".item_head"), function () {
14                if ($(this).hasClass("active")) {
15                    toggleBody(this);
16                }
17            });
18            return false;
19        });
20        $(".expandAll").click(function () {
21            $.each($(".item_head"), function () {
22                if (!$(this).hasClass("active")) {
23                    toggleBody(this);
24                }
25            });
26            return false;
27        });
28
29        function toggleBody(headToToggle) {
30            $(headToToggle).next(".item_body").slideToggle(500);
31            $(headToToggle).toggleClass("active").next();
32        }
33    }
34};