Added begining of XHR way of doing stuff (#3)

static/js/totalTable.js

@@ -0,0 +1,33 @@
+let loadingDiv = document.getElementById('loading');
+let resultDiv = document.getElementById('result');
+const timeout = 30000;
+
+function getTable() {
+    // Send XHR to totalTable
+    let xhr = new XMLHttpRequest();
+    xhr.timeout = timeout;
+    xhr.onreadystatechange = function() {
+        if (xhr.readyState === XMLHttpRequest.DONE) {
+            if (xhr.status === 200) {
+                setData(xhr.responseText);
+            } else {
+                setError();
+            }
+        }
+    };
+    xhr.open('GET', '/total-table', true);
+    xhr.send();
+    window.xhr = xhr;
+}
+
+function setData(text) {
+    loadingDiv.style.display = "none";
+    resultDiv.innerHTML = text;
+}
+
+function setError() {
+    loadingDiv.style.display = "none";
+    resultDiv.innerHTML = "An error occured";
+}
+
+getTable();