https://www.ashefaa.com/Mktba/themes/modern-vII/js/custom.js

1$(document).ready(function(){
2///////button-down
3    $(".button-down").on("click", function(){
4        $(this).hide(100);
5        $(".navtop").slideToggle(500);
6        $(".button-up").show(100);
7    });
8    $(".button-up").on("click", function(){
9        $(this).hide(100);
10        $(".navtop").slideToggle(500);
11        $(".button-down").show(100);
12    });
13///////scrollup
14    var up = $(".upscroll");
15    $(window).scroll(function(){
16        if($(this).scrollTop()>= 500){
17            up.fadeIn(300);
18        }
19        else{
20            up.fadeOut(300);
21        }
22    });
23    up.click(function(){
24        $("body,html").animate({scrollTop : 0}, 600);
25    });
26    
27    var foo = $('#gallery');
28				foo.poptrox({
29					usePopupCaption: true
30				});
31    $('#ticker').tickerme();
32});