text: document.addEventListener("DOMContentLoaded", function(){
  // make it as accordion for smaller screens
      if (window.innerWidth < 992) {
  
          // close all inner dropdowns when parent is closed
          document.querySelectorAll('.navbar .dropdown').forEach(function(everydropdown){
              everydropdown.addEventListener('hidden.bs.dropdown', function () {
                  // after dropdown is hidden, then find all submenus
                  this.querySelectorAll('.submenu').forEach(function(everysubmenu){
                      // hide every submenu as well
                      everysubmenu.style.display = 'none';
                  });
              })
          });
  
          document.querySelectorAll('.dropdown-menu a').forEach(function(element){
              element.addEventListener('click', function (e) {
                  let nextEl = this.nextElementSibling;
                  if(nextEl && nextEl.classList.contains('submenu')) {
                      // prevent opening link if link needs to open dropdown
                      e.preventDefault();
                      if(nextEl.style.display == 'block'){
                          nextEl.style.display = 'none';
                      } else {
                          nextEl.style.display = 'block';
                      }
  
                  }
              });
          })
      }
  // end if innerWidth
  });
  // DOMContentLoaded  end
  