make sure instrument and device are availabel separately

- added comment to the alert to be modified
  ("You changed a field without pressing the return key.")

client/jsFiles/SEAWebClientCommunication.js

@@ -72,12 +72,18 @@ function handleUpdateMessage(src, message) {
         clientID = message.id;
         if ("device" in message) {
             if (message.device == "_inst_select") {
-                clientTitle = "select instrument";
+                window.clientTitle = "select instrument";
                 console.log('IDselect')
                 pushInitCommand("getblock?path=_inst_select&", "instrument selection");
                 sizeChange();
             } else {
-                clientTitle = message.instrument + " " + message.device;
+                if (message.instrument) {
+                    window.instrument = message.instrument;
+                }
+                if (message.device) {
+                    window.device = message.device;
+                }
+                window.clientTitle = window.instrument + " " + window.device;
                 // console.log('loadBlocks', message);
                 loadFirstBlocks();
             }

client/jsFiles/SEAWebClientMain.js

@@ -182,7 +182,11 @@ window.onload = function() {
         let array_icon_edit = document.getElementsByClassName('icon-edit');
         let array_button = document.getElementsByClassName('input-element-button');
         if (writePermission == false) {
-            alertify.confirm("WRITE PERMISSION", "You are working on <b>"+ clientTitle + "</b>. Are You sure you want to change things here?", 
+            // TODO: here instead of asking "Please confirm we are on <instrument>", do not show the instrument,
+            // ask the user "Please confrim the instrument:" and check it the entered instrument is correct
+            // (case insensitive)
+            alertify.confirm("WRITE PERMISSION", "Current device: <b>"+ window.device
+                             + "</b>. Please confirm we are on <b>" + window.instrument + "</b>",
             function () {
                 // User decided to proceed.
                 prompt = false;