https://sellerartifact.com/js/follow-sale/script.js

1$(document).ready(function ($) {
2	// browser window scroll (in pixels) after which the "back to top" link is shown
3	var offset = 300,
4
5
6		//duration of the top scrolling animation (in ms)
7		scroll_top_duration = 700,
8		//grab the "back to top" link
9		$back_to_top = $('.cd-top');
10
11	//hide or show the "back to top" link
12	$(window).scroll(function () {
13		($(this).scrollTop() > offset) ? $back_to_top.addClass('cd-is-visible') : $back_to_top.removeClass('cd-is-visible cd-fade-out');
14		if ($(this).scrollTop() > offset.opacity) {
15			$back_to_top.addClass('cd-fade-out');
16		}
17	});
18	//smooth scroll to top
19	$back_to_top.on('click', function (event) {
20		event.preventDefault();
21		$('body,html').animate({
22			scrollTop: 0,
23		}, scroll_top_duration
24		);
25	});
26
27
28	$("#dui_ping").click(function () {
29
30		$(this).css("color", "#00bbd2");
31
32		$(this).css("border-color", "#00bbd2");
33
34		$("#dui_wu").css("color", "#999999");
35
36		$("#dui_wu").css("border-color", "#EFEFEF");
37
38		$(".xianb").css("display", "block");
39
40		$(".xiana").css("display", "none");
41
42	})
43
44	$("#dui_wu").click(function () {
45
46		$(this).css("color", "#00bbd2");
47
48		$(this).css("border-color", "#00bbd2");
49
50		$("#dui_ping").css("color", "#999999");
51
52		$("#dui_ping").css("border-color", "#EFEFEF");
53
54		$(".xiana").css("display", "block");
55
56		$(".xianb").css("display", "none");
57
58	})
59});
60
61$(window).scroll(function () {
62	var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
63	if (scrollTop >= 800) {
64		$(".ts-animate_key").eq(0).animate({
65			opacity: 1
66		}, 400, function () {
67			$(".ts-animate_key").eq(1).animate({
68				opacity: 1
69			}, 200, function () {
70				$(".ts-animate_key").eq(2).animate({
71					opacity: 1
72				}, 400);
73			});
74		});
75	}
76})