if (document.readyState == 'loading') {
          document.addEventListener('DOMContentLoaded', ready);
        } else {
          ready();
        }

        function ready() {
          var removeCartItemButtons = document.getElementsByClassName('trash');

          for (var i = 0; i < removeCartItemButtons.length; i++) {
            var button = removeCartItemButtons[i];
            button.addEventListener('click', function(event) {
              var buttonClicked = event.target;
              buttonClicked.parentElement.parentElement.remove();
              updateCartTotal();
            });
          }
        }

        function updateCartTotal() {
          var cartItemContainer = document.getElementById('basket')[0];
          var products = cartItemContainer.getElementsByClassName('product');
          var total = 0;
          for (var i = 0; i < products.length; i++) {
            var product = products[i];
            var priceElement = product.getElementsByClassName('cash')[0];
            var quantityElement = product.getElementsByClassName('quantity')[0];
            var price = parseFloat(priceElement.innerText.replace('$', ''));
            var quantity = quantityElement.value;
            total = total + price * quantity;
          }
          document.getElementsByClassName('subTotal')[0].innerText = '$ ' + total;
        }