turn off scheduler

public/index.html

@@ -18,7 +18,7 @@
             <p>This text is available both <a href="https://www.marxists.org/archive/lenin/works/1913/mar/x01.htm" target="_blank">as text at MIA</a> and <a href="https://www.youtube.com/watch?v=MOAII71GaFY" target="_blank">as audiobook by Socialism For All</a>.</p>
             <p>The work can be read in 20 minutes. The plan is to start the event 20 minutes <b>before</b> the announced time, to give people time to read the work, if they haven't already. Then <b>at</b> the announced time, the presentation/discussion will start. I will go through what I think are the main points, and we will use this presentation as foundation for discussion.</p>
             <p>I may put some notes here afterwards...</p>
-            <h1>Scheduler</h1>
+            <!--<h1>Scheduler</h1>
             <div id="scheduler">
                 <p>
                     Select as many options as possible. I will try and find the
@@ -51,7 +51,7 @@
                         <input type="submit" value="Submit">
                     </div>
                 </form>
-            </div>
+            </div>-->
         </main>
         <script></script>
     </body>

public/index.js

@@ -85,7 +85,8 @@ async function makeScheduleTable() {
     scheduleTable.innerHTML = tableHtml;
 }
 
-scheduleForm.onsubmit = async (ev) => {
+function initScheduler() {
+    scheduleForm.onsubmit = async (ev) => {
         ev.preventDefault();
         const formdata = new FormData(ev.target);
         const data = [...formdata]
@@ -111,6 +112,11 @@ scheduleForm.onsubmit = async (ev) => {
             alert("error occured!");
             console.log(response);
         }
-};
+    };
 
-makeScheduleTable();
+    makeScheduleTable();
+}
+
+if (scheduleTable !== null && scheduleForm !== null) {
+    initScheduler();
+}