small fixes

js/interact.js

@@ -35,7 +35,7 @@ export function postAnswers(ans) {
     (data) => {
     console.log(data)
     if (data.success) {
-      alert("Answers sucessfully submitted.");
+      alert(`${data.question_count} answers sucessfully submitted.`);
     } else {
       alert(`Error submitting answers: ${data.error}`);
     }

js/main.js

@@ -1748,22 +1748,25 @@ $(".start-packet-button").click(function (evt) {
 
   window.timer = timer;
 
-  $("#timer").click(() => {
-    window.timer.pause();
+  // If we are not in an exam we can pause the session
+  if (!window.exam_mode) {
+    $("#timer").click(() => {
+      window.timer.pause();
 
-    let time_remaining = window.timer.getTimeValues().toString();
+      let time_remaining = window.timer.getTimeValues().toString();
 
-    $("#pause").empty();
-    $("#pause").append(
-      $(
-        `<div id="pause-text">Session paused<div id="pause-time-remaining">You have ${time_remaining} remaining.</div></div><button id="resume-exam-button" class="navigation dialog-yes">Click to resume</button>`
-      ).click(() => {
-        $("#pause").hide();
-        timer.start();
-      })
-    );
-    $("#pause").show();
-  });
+      $("#pause").empty();
+      $("#pause").append(
+        $(
+          `<div id="pause-text">Session paused<div id="pause-time-remaining">You have ${time_remaining} remaining.</div></div><button id="resume-exam-button" class="navigation dialog-yes">Click to resume</button>`
+        ).click(() => {
+          $("#pause").hide();
+          timer.start();
+        })
+      );
+      $("#pause").show();
+    });
+  }
 
   // //const t = 2;
   // let display = document.querySelector("#timer");

js/viewer.js

@@ -20,7 +20,11 @@ export function loadMainImage(image, stack) {
   cornerstoneTools.addToolState(element, "stack", stack);
 
   cornerstoneTools.addTool(PanTool);
-  cornerstoneTools.addTool(ZoomTool);
+  cornerstoneTools.addTool(ZoomTool, {
+    configuration: {
+      invert: true,
+    },
+  });
   cornerstoneTools.addTool(WwwcTool);
   cornerstoneTools.addTool(RotateTool);
   cornerstoneTools.addTool(StackScrollTool);
@@ -503,11 +507,7 @@ export function openMainImage(current_question, t, source) {
       } else if (data_url.startsWith("data:application/dicom")) {
         // stack = stack.split(";")[1];
 
-        const dfile = await urltoFile(
-          data_url,
-          "dicom",
-          "application/dicom"
-        );
+        const dfile = await urltoFile(data_url, "dicom", "application/dicom");
 
         const imageId = cornerstoneWADOImageLoader.wadouri.fileManager.add(
           dfile
@@ -535,6 +535,8 @@ export function openMainImage(current_question, t, source) {
     if (open_figure != undefined) {
       // No full size figure / dicom loaded yet
       if (figure_to_load == open_figure) {
+        // Scroll to the image if it is already open
+        document.getElementById("dicom-image").scrollIntoView();
         return;
       } else {
         let el;