jquery trigger scroll position code example

Example 1: jquery keep scroll position

var scroll = $(window).scrollTop();
// yada
$("html").scrollTop(scroll);

Example 2: jquery trigger event when scroll to div

$(window).scroll(function() {
   var hT = $('#scroll-to').offset().top,
       hH = $('#scroll-to').outerHeight(),
       wH = $(window).height(),
       wS = $(this).scrollTop();
   if (wS > (hT+hH-wH)){
       console.log('H1 on the view!');
   }
});