https://www.web-design-expert.com/js/custom.js

1jQuery(document).ready(function(){
2  // new WOW().init();
3    $(".responsive-btn").click(function(){
4        $(".navpanel").slideToggle("slow");
5        $(this).toggleClass("cross");
6    });
7  $(".content").mCustomScrollbar();
8  var linkIndex = 0,
9      portfolioOptions = $('.servicepanel .potfolio-type');
10  portfolioOptions.find('li').each(function(i, v){
11    var tabUrl = $(this).find('a').attr('href').split('#')[1],
12        pageUrl = window.location.href;
13    if(pageUrl.indexOf(tabUrl) >= 0){
14      linkIndex = i;
15    }
16  });
17  $('.servicepanel .potfolio-type li').eq(linkIndex).find('a').trigger('click');
18});
19//  for sticky header
20
21    $(window).scroll(function(){
22      // var sticky = $('.header-bottom'),
23      //     scroll = $(window).scrollTop();
24
25      // if (scroll >= 400) sticky.addClass('fixed');
26      // else sticky.removeClass('fixed');
27        var toparrow = $('.toparrow'),
28        scroll = $(window).scrollTop();
29            if(scroll >= 400 )
30                toparrow.addClass('show');
31            else
32                toparrow.removeClass('show');
33
34    });