https://www.spaziovino.com/bitrix/templates/vino/js/tabs.js

1	$(function() {
2		
3		//When page loads...
4		$(".tab_content").hide(); //Hide all content
5		$("ul.tabs li:first").addClass("active").show(); //Activate first tab
6		$(".tab_content:first").show(); //Show first tab content
7	
8		//On Click Event
9		$("ul.tabs li").click(function() {
10	
11			$("ul.tabs li").removeClass("active"); //Remove any "active" class
12			$(this).addClass("active"); //Add "active" class to selected tab
13			$(".tab_content").hide(); //Hide all tab content
14	
15			var activeTab = $(this).find("a").attr("href"); //Find the href attribute value to identify the active tab + content
16			$(activeTab).fadeIn(); //Fade in the active ID content
17			return false;
18		});
19	
20	});