Cope with not having a layer configuration at all.

[rails.git] / app / views / site / index.rhtml

diff --git a/app/views/site/index.rhtml b/app/views/site/index.rhtml
index 895885360f03bef6100ec927f5f71f07ca5a12ec..e30dad1d026b73dcc7031b0de79fe901da2c6dc1 100644 (file)
--- a/app/views/site/index.rhtml
+++ b/app/views/site/index.rhtml
@@ -8,6 +8,14 @@
 <%= render :partial => 'key' %>
 <%= render :partial => 'search' %>
 
+<noscript>
+  <div id="noscript">
+    <p>You are either using a browser that doesn't support javascript, or you have disabled javascript.</p>
+    <p>OpenStreetMap uses javascript for its slippy map.</p>
+    <p>You may want to try the <a href="http://tah.openstreetmap.org/Browse/">Tiles@Home static tile browser</a> if you are unable to enable javascript.</p>
+  </div>
+</noscript>
+
 <div id="map">
 <div id="permalink"><a href="/" id="permalinkanchor">Permalink</a></div>
 </div> 
@@ -68,8 +76,8 @@ by the OpenStreetMap project and its contributors.
 <% lon =  '-0.1' %>
 <% lat =  '51.5' %>
 <% zoom =  h(params['zoom'] || '5') %>
-<% layers = h(params['layers']) %>
 <% end %>
+<% layers = h(params['layers']) %>
 <% end %>
 
 <%= javascript_include_tag '/openlayers/OpenLayers.js' %>
@@ -101,7 +109,7 @@ by the OpenStreetMap project and its contributors.
     setMapCenter(centre, zoom);
     <% end %>
 
-    <% if layers %>
+    <% if !layers.nil? and !layers.empty? %>
     setMapLayers("<%= layers %>");
     <% end %>