zendesk-test

document.addEventListener('DOMContentLoaded', function() {
  function closest (element, selector) {
    if (Element.prototype.closest) {
      return element.closest(selector);
    }
    do {
      if (Element.prototype.matches && element.matches(selector)
        || Element.prototype.msMatchesSelector && element.msMatchesSelector(selector)
        || Element.prototype.webkitMatchesSelector && element.webkitMatchesSelector(selector)) {
        return element;
      }
      element = element.parentElement || element.parentNode;
    } while (element !== null && element.nodeType === 1);
    return null;
  }

  // social share popups
  Array.prototype.forEach.call(document.querySelectorAll('.share a'), function(anchor) {
    anchor.addEventListener('click', function(e) {
      e.preventDefault();
      window.open(this.href, '', 'height = 500, width = 500');
    });
  });

  // In some cases we should preserve focus after page reload
  function saveFocus() {
    var activeElementId = document.activeElement.getAttribute("id");
    sessionStorage.setItem('returnFocusTo', '#' + activeElementId);
  }
  var returnFocusTo = sessionStorage.getItem('returnFocusTo');
  if (returnFocusTo) {
    sessionStorage.removeItem('returnFocusTo');
    var returnFocusToEl = document.querySelector(returnFocusTo);
    returnFocusToEl && returnFocusToEl.focus && returnFocusToEl.focus();
  }