// Fixed left column

$(window).scroll(function() {
  if (document.querySelector('.footer').getBoundingClientRect().top + 200 < document.querySelector('.footer').getBoundingClientRect().height) {
    $('.info-tabs').removeClass('info-tabs_active');
  } else if ($(this).scrollTop() > 290) {
    $('.info-tabs').addClass('info-tabs_active');
  } else {
    $('.info-tabs').removeClass('info-tabs_active');
  }

  var tabItems = document.querySelectorAll('.info-tabs__item'),
      tabLinks = document.querySelectorAll('.info-tabs__link'),
      tabContents = document.querySelectorAll('.info-tabs-content');
      //s_top = $('body').scrollTop(),
      yes = [];

  for (var i = 0; i <= tabItems.length; i++) {
    var tempSelector = $(`#item-${i}`);
    //yes[i] = tempSelector.offset().top;

    if (tabContents[i] != undefined || null) {
      if (tabContents[i].getBoundingClientRect().top < 100) {
        for (var j = 0; j < tabLinks.length; j++) {
          tabLinks[j].classList.remove('info-tabs__link_active');
        }

        tabLinks[i].classList.add('info-tabs__link_active');
      }
    }
  }
});

// Info tabs

var infoTabsItem = document.querySelectorAll('.info-tabs__item'),
    infoTabsContent = document.querySelectorAll('.info-tabs-content');

for (var i = 0; i < infoTabsItem.length; i++) (function(n) {
  infoTabsItem[n].addEventListener('click', function(e) {
    e.preventDefault();
    $([document.documentElement, document.body]).animate({
      scrollTop: infoTabsContent[n].offsetTop + 300
    }, 1000);
  });
})(i);