https://greenmast.ru/local/templates/gvozdevsoft_profigs_s1/lib/tabs/tabs.js

1$(document).ready(function() {
2	jQuery.fn.lightTabs = function(options){
3
4		var createTabs = function(){
5			var tabs = this;
6			var i = 0;
7
8			var showPage = function(i){
9				$(tabs).children("div").children("div").hide();
10				$(tabs).children("div").children("div").eq(i).show();
11				$(tabs).children("ul").children("li").removeClass("active");
12				$(tabs).children("ul").children("li").eq(i).addClass("active");
13			}
14
15			showPage(0);
16
17			$(tabs).children("ul").children("li").each(function(index, element){
18				$(element).attr("data-page", i);
19				i++;
20			});
21
22			$(tabs).children("ul").children("li").click(function(){
23				showPage(parseInt($(this).attr("data-page")));
24			});
25		};
26		return this.each(createTabs);
27	};
28});