Dispatch an error on Geolocation failure

examples/geolocation.html

@@ -53,8 +53,9 @@
           <button id="locate"><i class="icon-screenshot"></i> locate</button>
           <div id="tags">geolocation, openstreetmap</div>
         </div>
-
-      </div>
+        <div class="span4 pull-right">
+          <div id="info" class="alert alert-error" style="display: none;"></div>
+        </div>
 
     </div>
 

examples/geolocation.js

@@ -36,6 +36,12 @@ geolocation.addEventListener('accuracy_changed', function() {
     title: this.getAccuracy() + 'm from this point'
   });
 });
+geolocation.on('error', function(error) {
+  var info = document.getElementById('info');
+  info.innerHTML = error.message;
+  info.style.display = '';
+});
+
 
 $('#locate').click(function() {
   geolocation.setTracking(true);