diff --git a/frontend-js/src/main/js/ServerConnector.js b/frontend-js/src/main/js/ServerConnector.js
index 3a27530f94ed6f0875b675f201299cde9439652d..c8c8bfaeb2fbfbc6a4e5d7b8f5414022e4591728 100644
--- a/frontend-js/src/main/js/ServerConnector.js
+++ b/frontend-js/src/main/js/ServerConnector.js
@@ -815,17 +815,17 @@ ServerConnector.getOverlays = function(projectId) {
       var arr = JSON.parse(content);
       var result = [];
       for (var i = 0; i < arr.length; i++) {
-        var layout = new LayoutData(arr[i]);
-        result.push(layout);
+        var overlay = new LayoutData(arr[i]);
+        result.push(overlay);
       }
       resolve(result);
     }, reject);
   });
 };
 
-ServerConnector.getOverlayElements = function(layoutId, projectId) {
+ServerConnector.getOverlayElements = function(overlayId, projectId) {
   var self = this;
-  if (layoutId === undefined) {
+  if (overlayId === undefined) {
     throw new Error("Layout id must be defined");
   }
 
@@ -835,7 +835,7 @@ ServerConnector.getOverlayElements = function(layoutId, projectId) {
     return self.getProjectId(projectId);
   }).then(function(result) {
     projectId = result;
-    return self.readFile(self.getOverlayElementsUrl(layoutId, projectId, token));
+    return self.readFile(self.getOverlayElementsUrl(overlayId, projectId, token));
   }).then(function(content) {
     var arr = JSON.parse(content);
     var result = [];