Add function to get switch state

www/page2.html

@@ -64,6 +64,18 @@ Send questions to <a href="mailto:supporrt@emacinc.com">support@emacinc.com</a>.
       action: 'toggle'
     }));
   };
+  function getSwitch() {
+    var xhr = new XMLHttpRequest();
+    xhr.open("GET", "/get_switch", true);
+    xhr.onreadystatechange = function() {
+      if (this.readyState == XMLHttpRequest.DONE && this.status == 200) {
+        var data = xhr.responseText;
+        var jsonResponse = JSON.parse(data);
+        document.getElementById("switchMsg").innerHTML = jsonResponse['status'];
+      }
+    }
+    xhr.send();
+  };
 </script>
 </body>
 </html>