document.addEventListener('DOMContentLoaded', function () {
  document.querySelectorAll('nav#mainNav ul.navbar-nav li.dropdown').forEach(function (dropdown) {
    var p = document.createElement('p');
    p.className = 'fa fa-chevron-down menuIcon';
    p.style.marginTop = '0px';
    p.style.marginLeft = '5px';
    p.style.marginBottom = '0px';
    p.style.marginRight = '0px';
    dropdown.querySelector('a').appendChild(p);
  });

  var tries = 0;
  var maxTries = 80;
  var interval = 100;

  var sideMenuWatch = setInterval(function () {
    tries++;
    var sideMenuNav = document.querySelector('.baseTemplateSideMenuContainer .nav.navbar-nav');

    if (sideMenuNav) {
      sideMenuNav.querySelectorAll('li.dropdown').forEach(function (dropdown) {
        var existing = dropdown.querySelector(':scope > a > .menuIcon');
        if (existing) return;

        var p = document.createElement('p');
        p.className = 'fa fa-chevron-down menuIcon';
        p.style.marginTop = '0px';
        p.style.marginLeft = '5px';
        p.style.marginBottom = '0px';
        p.style.marginRight = '0px';
        dropdown.querySelector('a').appendChild(p);
      });
      clearInterval(sideMenuWatch);
    }

    if (tries >= maxTries) clearInterval(sideMenuWatch);
  }, interval);
});