diff --git a/examples/reprojection.html b/examples/reprojection.html
index af09326e19..365c612945 100644
--- a/examples/reprojection.html
+++ b/examples/reprojection.html
@@ -15,14 +15,14 @@ resources:
   <form class="form-inline">
     <div class="col-md-3">
       <label>Base map:</label>
-      <select id="base-map">
+      <select id="base-layer">
         <option value="mapquest">MapQuest (EPSG:3857)</option>
         <option value="wms4326">WMS (EPSG:4326)</option>
       </select>
     </div>
     <div class="col-md-4">
       <label>Overlay map:</label>
-      <select id="overlay-map">
+      <select id="overlay-layer">
         <option value="bng">British National Grid (EPSG:27700)</option>
         <option value="wms21781">Swisstopo WMS (EPSG:21781)</option>
         <option value="wmts3413">NASA Arctic WMTS (EPSG:3413)</option>
@@ -43,6 +43,6 @@ resources:
         <option value="EPSG:5479">RSRGD2000 / MSLC2000 (EPSG:5479)</option>
       </select>
     </div>
-    <label for="render-edges"><input type="checkbox" id="render-edges" />Render reprojection edges</label>
+    <label for="render-edges"><input type="checkbox" id="render-edges" />Render reprojection edges</label> (only displayed on reprojected data)
   </form>
 </div>
diff --git a/examples/reprojection.js b/examples/reprojection.js
index b1aaeb5e0c..c65d3aa164 100644
--- a/examples/reprojection.js
+++ b/examples/reprojection.js
@@ -163,8 +163,8 @@ var map = new ol.Map({
 });
 
 
-var baseMapSelect = document.getElementById('base-map');
-var overlayMapSelect = document.getElementById('overlay-map');
+var baseLayerSelect = document.getElementById('base-layer');
+var overlayLayerSelect = document.getElementById('overlay-layer');
 var viewProjSelect = document.getElementById('view-projection');
 var renderEdgesCheckbox = document.getElementById('render-edges');
 var renderEdges = false;
@@ -204,8 +204,8 @@ var updateRenderEdgesOnLayer = function(layer) {
 /**
  * @param {Event} e Change event.
  */
-baseMapSelect.onchange = function(e) {
-  var layer = layers[baseMapSelect.value];
+baseLayerSelect.onchange = function(e) {
+  var layer = layers[baseLayerSelect.value];
   if (layer) {
     layer.setOpacity(1);
     updateRenderEdgesOnLayer(layer);
@@ -217,8 +217,8 @@ baseMapSelect.onchange = function(e) {
 /**
  * @param {Event} e Change event.
  */
-overlayMapSelect.onchange = function(e) {
-  var layer = layers[overlayMapSelect.value];
+overlayLayerSelect.onchange = function(e) {
+  var layer = layers[overlayLayerSelect.value];
   if (layer) {
     layer.setOpacity(0.7);
     updateRenderEdgesOnLayer(layer);