Fix JavaScript to use correct property

Author: stephenc

client/src/main/js/scripts/main.js

@@ -2,9 +2,9 @@ var postRequest = new XMLHttpRequest();
 postRequest.onreadystatechange = function () {
     if (postRequest.readyState == 4) {
         if (postRequest.status == 200) {
-            document.getElementById("result").innerText = postRequest.responseText;
+            document.getElementById("result").textContent = postRequest.responseText;
         } else {
-            document.getElementById("result").innerTest = "An error has occurred";
+            document.getElementById("result").textContent = "An error has occurred";
         }
     }
 };