diff --git a/station_map_www.js b/station_map_www.js
index b7b83e7..4145e78 100644
--- a/station_map_www.js
+++ b/station_map_www.js
@@ -1,9 +1,9 @@
 /*
  * JavaScript code to generate maps used by the
  * Seismological Observatory of the Ruhr-University Bochum
- * 
+ *
  * Copyright 2013 Kasper D. Fischer <kasper.fischer@rub.de>
- * 
+ *
  * License
  *
  * This program is free software: you can redistribute it and/or modify
@@ -28,7 +28,7 @@ var map, mapargs;
 
 /* Main function to create the map */
 function init(showGoogle, showStations, showQuakes, noFrils) {
-	
+
 	/* get parameters from url */
 	mapargs = OpenLayers.Util.getParameters();
     if (mapargs['print']) {
@@ -52,7 +52,7 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 			showStations = false;
 		}
 	}
-	
+
 	/* Creating map */
 	if ( !noFrils ) {
 		map = new OpenLayers.Map(
@@ -136,8 +136,24 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 		]);
 	};
 
+	// OpenMapQuest
+	var omq_map_layer = new OpenLayers.Layer.OSM(
+		'OpenMapQuest',
+		[
+			"http://otile1.mqcdn.com/tiles/1.0.0/map/${z}/${x}/${y}.jpg",
+			"http://otile2.mqcdn.com/tiles/1.0.0/map/${z}/${x}/${y}.jpg",
+			"http://otile3.mqcdn.com/tiles/1.0.0/map/${z}/${x}/${y}.jpg",
+			"http://otile4.mqcdn.com/tiles/1.0.0/map/${z}/${x}/${y}.jpg"
+		],
+		{
+			attribution: 'Kartenbasis: Daten von <a href="http://www.openstreetmap.org/">OpenStreetMap</a> - Veröffentlicht unter <a href="http://opendatacommons.org/licenses/odbl/">ODbL</a><br />' +
+                                     'Seismische Daten von <a href="http://www.gmg.ruhr-uni-bochum.de/geophysik/seisobs">Ruhr-Universität Bochum</a> - Veröffentlicht unter <a href="http://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a>'
+		}
+	);
+	map.addLayers([omq_map_layer]);
+
 	// ESRI
-	var esri_map_layer = new OpenLayers.Layer.XYZ(
+	/* var esri_map_layer = new OpenLayers.Layer.XYZ(
 		'ESRI',
 		"https://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer/tile/${z}/${y}/${x}",
 		{
@@ -146,15 +162,15 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 				'This work is licensed under the Web Services and API <a href="http://links.esri.com/agol_tou" target="_blank">Terms of Use</a>.'
 		}
 	);
-	map.addLayers([esri_map_layer]);
-	
+	map.addLayers([esri_map_layer]); */
+
 	// Show quakes
 	quakes_layer = loadKML(OpenLayers.i18n("Events"), 'quakes.kml', false, true);
 	quakes_layer.events.on({'loadend': setQuakesMapkeyVisibility});
 	quakes_layer.events.on({'visibilitychanged': setQuakesMapkeyVisibility});
 	map.addLayer(quakes_layer);
 	quakes_layer.setVisibility(showQuakes);
-		
+
 	// color coding of events
 	var day2sec = 86400.;
 	var timeNow = new Date().getTime()/1000.;
@@ -163,7 +179,7 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 		switch ( mapargs['timeCoding'] ){
 			case 'decade':
 				timeCoding = {
-					'colors': [  '#0000ff', '#ff0000', '#ffa500', '#ffff00'], 
+					'colors': [  '#0000ff', '#ff0000', '#ffa500', '#ffff00'],
 					'times':   [1262300400, 946681200, 631148400, 315529200]
 					//            1.1.2010,  1.1.2000,  1.1.1990,  1.1.1980
 				};
@@ -171,11 +187,11 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 	};
 	if (!mapargs['timeCoding'] || !timeCoding ) {
 		timeCoding = {
-			'colors': ['#0000ff',       '#ff0000',       '#ffa500',      '#ffff00'], 
+			'colors': ['#0000ff',       '#ff0000',       '#ffa500',      '#ffff00'],
 			'ages':   [7*day2sec, 30.4375*day2sec, 182.625*day2sec, 365.25*day2sec]
 		};
 	};
-		
+
 	// Adding custom style to quakes
 	var quake_style_default = new OpenLayers.Style({
 			fillColor: '${pntcolor}', fillOpacity: 0.2,
@@ -185,7 +201,11 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 	{
 		context: {
 			pntcolor: function(feature){
-				return feature.data.pntcolor.value; 
+				try {
+					return feature.data.pntcolor.value;
+				} catch (e) {
+					return "#E020F0"
+				}
 			},
 			/*	if (timeCoding['ages']) {
 					quakeAge = feature.data.age.value;
@@ -209,13 +229,17 @@ function init(showGoogle, showStations, showQuakes, noFrils) {
 				//return '#ffffff00';
 			}, */
 			pntsize: function(feature){
-				// quakeAge = feature.data.age.value;
-				// quakeAge = timeNow - feature.data.time.value;
-				// if ( timeCoding['ages'] && quakeAge > timeCoding['ages'][timeCoding['ages'].length-1] ) {
-				//	return 0;
-				// } else {
+				try {
+					// quakeAge = feature.data.age.value;
+					// quakeAge = timeNow - feature.data.time.value;
+					// if ( timeCoding['ages'] && quakeAge > timeCoding['ages'][timeCoding['ages'].length-1] ) {
+					//	return 0;
+					// } else {
 					return feature.data.pntsize.value;
-				//}
+					//}
+				} catch (e) {
+					return 6;
+				}
 			}
 		}
 	});
@@ -362,7 +386,7 @@ function loadKML(name, file, useStyle, noFrils) {
 			"featureselected": onFeatureSelect,
 			"featureunselected": onFeatureUnselect
 		});
-			
+
 	// return layer object
 	return kml_layer;
 }