<html>
  <head>
    <script type="text/javascript">
      window.onload = function () {
        document
          .getElementById("botm_button")
          .addEventListener("click", (e) => {
            e.target.disabled = true;
            const botm_target = document.getElementById("botm_target");
            if (botm_target) {
              botm_target.style = "background-color:thistle";
            }
          });

        document
          .getElementById("delete_button")
          .addEventListener(