[JS] Scroll page to element after reload

[JS] Scroll page to element after reload

var main = function() {
  
  var y = getCookie("scrollDown");
  window.scroll(0, y);
  delete_cookie("scrollDown");
  document.cookie = "scrollDown=0";

  function toCartClick(el) {
      var offset = offset1(el);
      // alert(offset);
      delete_cookie("scrollDown");
      document.cookie = 'scrollDown='+offset;
      // alert(document.cookie);
  }

  function offset1(el) {
      var rect = el.getBoundingClientRect(),
      scrollLeft = window.pageXOffset || document.documentElement.scrollLeft,
      scrollTop = window.pageYOffset || document.documentElement.scrollTop;
      // return { top: rect.top + scrollTop, left: rect.left + scrollLeft }
      return scrollTop;
  }

  function getCookie(name) {
    var matches = document.cookie.match(new RegExp(
      "(?:^|; )" + name.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g, '\\$1') + "=([^;]*)"
    ));
    return matches ? decodeURIComponent(matches[1]) : undefined;
  }

  function delete_cookie ( cookie_name )
  {
    var cookie_date = new Date ( );  // Текущая дата и время
    cookie_date.setTime ( cookie_date.getTime() - 3 );
    document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
  }
};

$(document).ready(main);