diff --git a/src/eu/simstadt/regionchooser/website/script/simstadt_openlayers.js b/src/eu/simstadt/regionchooser/website/script/simstadt_openlayers.js
index dd2452727f8e2a33749e18ef7a8d65e11ce622a0..fa891445f90a5d99d155f4e28c059a9bc85524a3 100644
--- a/src/eu/simstadt/regionchooser/website/script/simstadt_openlayers.js
+++ b/src/eu/simstadt/regionchooser/website/script/simstadt_openlayers.js
@@ -8,23 +8,26 @@ proj4.defs("EPSG:2263", "+proj=lcc +lat_1=41.03333333333333 +lat_2=40.6666666666
 //NOTE: Corrected version from https://oegeo.wordpress.com/2008/05/20/note-to-self-the-one-and-only-rd-projection-string/
 proj4.defs("EPSG:28992", "+proj=sterea +lat_0=52.15616055555555 +lon_0=5.38763888888889 +k=0.999908 +x_0=155000 +y_0=463000 +ellps=bessel +units=m +towgs84=565.2369,50.0087,465.658,-0.406857330322398,0.350732676542563,-1.8703473836068,4.0812 +no_defs <>"); // 
 
-var regionChooser = (function(){
+//var regionChooser = (function(){
 	var publicScope = {};
 	var reset_btn = $('#reset')[0];
 	var dataPanel = $('#dataPanel');
 	var wgs84Sphere = new ol.Sphere(6378137);
 
-
 	var osm_layer = new ol.layer.Tile({
 		source: new ol.source.OSM()
 	});
 
-	var kml_source = new ol.source.KML({
-		projection : ol.proj.get('EPSG:3857'),
-		url : 'data/citygml_hulls.kml',
-		extractAttributes : false,
-		extractStyles : false
-	});
+	function read_kml(url){
+		return new ol.source.KML({
+			projection : ol.proj.get('EPSG:3857'),
+			url : url,
+			extractAttributes : false,
+			extractStyles : false
+		});
+	}
+	
+	var kml_source = read_kml('data/citygml_hulls.kml');
 
 	function polygon_style(color, alpha) {
 		return new ol.style.Style({
@@ -293,7 +296,10 @@ var regionChooser = (function(){
 	});
 	
 	$('#refresh_hulls').click(function() {
-		fxapp.refreshHulls();
+		url = fxapp.refreshHulls();
+		console.log('Loading ' + url);
+		kml_source = read_kml(url);
+		kml_layer.setSource(kml_source);
 	});
 
 	novafactory_layer.downloadFinished = function() {
@@ -352,5 +358,6 @@ var regionChooser = (function(){
 	}
 
 	focusOnMap();
-	return publicScope;
-})();
\ No newline at end of file
+	var regionChooser = publicScope;
+//	return publicScope;
+//})();
\ No newline at end of file