https://groundwaterdesktop.com/Scripts/site.js

1$(document).ready(function() {
2    $(window).resize(adjustNavMenu);
3    $(window).scroll(function() {
4        toogleFixedTopPanel();
5        toogleBackToTopButton();
6    });
7    $("#btnBackToTop").click(function(event) {
8        event.preventDefault();
9        $("html, body").animate({ scrollTop: 0 }, '500');
10        return false;
11    });
12});
13
14function toogleFixedTopPanel() {
15    if(!isTopPanelExists())
16        return;
17
18    if($(document).scrollTop() > 100 && !TopPanel.IsExpandable()) {
19        $('header').addClass('shrink');
20        $('body').css('padding-top', $('header').outerHeight());
21    } else {
22        $('header').removeClass('shrink');
23        $('body').css('padding-top', 0);
24    }
25}
26function toogleBackToTopButton() {
27    var offset = 200;
28    if($(this).scrollTop() > offset)
29        $(".btnBackToTop").removeClass("hidden");
30    else
31        $(".btnBackToTop").addClass("hidden");
32}
33function adjustNavMenu() {
34    if(!isTopPanelExists() || !window.NavMenu || !isASPxClientControl(NavMenu)) 
35        return;
36    
37    var orientation = TopPanel.IsExpandable() ? 'Vertical' : 'Horizontal';
38    if(orientation !== NavMenu.GetOrientation())
39        NavMenu.SetOrientation(orientation);
40}
41
42function isTopPanelExists() {
43    return window.TopPanel && isASPxClientControl(TopPanel);
44}
45function isASPxClientControl(obj) {
46  return obj instanceof ASPxClientControlBase;
47
48  function OnInit(s, e) {
49    ScrollToSelection(s, pnl);
50  }
51  function OnEndCallback(s, e) {
52    ScrollToSelection(s, pnl);
53  }
54  function ScrollToSelection(tree, pnl) {
55    var selEl = tree.GetMainElement().querySelector(".dxtv-ndSel");
56    if (!selEl) return;
57
58    var pnlEl = pnl.GetMainElement();
59    var selElY = ASPxClientUtils.GetAbsoluteY(selEl);
60    var pnlY = ASPxClientUtils.GetAbsoluteY(pnlEl);
61    pnlEl.scrollTop = selElY - pnlY - pnlEl.offsetHeight / 2;
62  }
63}