slightly modify the wfs-states example to show how to switch between a WMS and a vector layer at a certain scale (non-functional change)

examples/wfs-states.html

@@ -22,7 +22,8 @@
         <div id="docs">
             <p>
                 This example shows the basic use of a vector layer with the
-                WFS protocol.
+                WFS protocol, and shows how to switch between a WMS and a vector
+                layer at a certain scale.
             </p>
             <p>
                 See the <a href="wfs-states.js" target="_blank">wfs-states.js

examples/wfs-states.js

@@ -13,7 +13,13 @@ function init() {
                 "http://vmap0.tiles.osgeo.org/wms/vmap0",
                 {layers: "basic"} 
             ),
+            new OpenLayers.Layer.WMS("States WMS",
+                "http://demo.opengeo.org/geoserver/wms",
+                {layers: "topp:states", format: "image/png", transparent: true},
+                {maxScale: 15000000}
+            ),
             new OpenLayers.Layer.Vector("States", {
+                minScale: 15000000,
                 strategies: [new OpenLayers.Strategy.BBOX()],
                 protocol: new OpenLayers.Protocol.WFS({
                     url: "http://demo.opengeo.org/geoserver/wfs",