jQuery Forum

Hi!
I have my lightgallery opened and want before closing it 
my class only to be added when the main page is scrolled down a bit.
 

 $("#LGbest").on({
            'onBeforeOpen.lg': function(event) {
                $("body").removeClass("scrolled-down-top").addClass("scrolled-down-home");
                console.log(event.name,event);
            },
            'onBeforeClose.lg': function(event) {
                $("body").removeClass("scrolled-down-home");//add class  if scrolled down .addClass("scrolled-down-top");	 
         	console.log(event.name,event);
		
			
            }
        })
snote

1. $(function () {
2.   var lastScrollTop = 0;
3.   var $navbar = $('.navbar');
4.   $(window).scroll(function(event){
5.     var st = $(this).scrollTop();
6.     if (st > lastScrollTop) {
7.        $navbar.animate({
8.         right: '10px',
9.          width: '150px'
10.        }, 2000, "linear");
11.         
12.     } else {
13.             $("navbar").removeClass("animate")
14.          }
15.     lastScrollTop = st;
16.   });
17. });