https://www.edmundoptics.eu/assets/javascript/homepage.js?v=ATUs-z…ATUs-ztPWLvMlb33FT5cEqRtU2k2oypKqWJn7Z-uShs

1var $animation_elements = $('.animation-element');
2var $window = $(window);
3function check_if_in_view() {
4    var window_height = $window.height();
5    var window_top_position = $window.scrollTop();
6    var window_bottom_position = (window_top_position + window_height);
7    $.each($animation_elements, function () {
8        var $element = $(this);
9        var element_height = $element.outerHeight();
10        var element_top_position = $element.offset().top;
11        var element_bottom_position = (element_top_position + element_height);
12
13        //check to see if this current container is within viewport
14        if ((element_bottom_position >= window_top_position) &&
15          (element_top_position <= window_bottom_position)) {
16            $element.addClass('in-view');
17        } else {
18            $element.removeClass('in-view');
19        }
20    });
21}
22$window.on('scroll resize', check_if_in_view);
23$window.trigger('scroll');
24$(document).on("click", ".doSwitch", function () {
25    if (!$(this).hasClass("boldLaser")) {
26        var id = $(this).attr("id")
27        var currentIndex = id.substring(0, 5)
28        $("#universityList a").removeClass("boldLaser")
29        $(this).addClass("boldLaser")
30        $(".hidden-txt").hide()
31        $("#hiddenArea_" + id).show()
32    }
33})
34$(".hidden").hide();
35$(".hidden:first").show();
36$("#universityList a:first").addClass("boldLaser");
37$(".txts>div:first").show();