gui done enough

public/root.html

@@ -71,7 +71,14 @@
       }
 
       function pushAnswer(idq, answer, passed) {
-         console.log(idq, answer, passed)
+         http("post", `/api/questions/${idq}/answers`, noopcallback,
+            JSON.stringify(
+               {
+                  "answer": answer,
+                  "passed": new Boolean(passed),
+               }
+            ),
+         )
       }
 
       function nextQuestion(form) {
@@ -110,6 +117,23 @@
          form.children.answer.retake = todo[1].Retake
       }
 
+      function noopcallback(responseBody, responseStatus) {
+         console.log(responseStatus, responseBody)
+      }
+      function http(method, remote, callback, body) {
+         var xmlhttp = new XMLHttpRequest();
+         xmlhttp.onreadystatechange = function() {
+            if (xmlhttp.readyState == XMLHttpRequest.DONE) {
+               callback(xmlhttp.responseText, xmlhttp.status)
+            }
+         };
+         xmlhttp.open(method, remote, true);
+         if (typeof body == "undefined") {
+            body = null
+         }
+         xmlhttp.send(body);
+      }
+
       nextQuestion(document.getElementById("flash"))
     </script>
   </footer>