diff --git a/combo/apps/maps/static/js/combo.map.js b/combo/apps/maps/static/js/combo.map.js
index 16218910..2380cecc 100644
--- a/combo/apps/maps/static/js/combo.map.js
+++ b/combo/apps/maps/static/js/combo.map.js
@@ -147,6 +147,36 @@ $(function() {
           }
         },
 
+        disable_layer: function(slug) {
+          var layer = this.geojson_layers[slug];
+          var group = this.clustered_markers || this;
+          if (layer) {
+            group.removeLayer(layer.leaflet_layer);
+          }
+        },
+
+        enable_layer: function(slug) {
+          var layer = this.geojson_layers[slug];
+          var group = this.clustered_markers || this;
+          if (layer) {
+            group.addLayer(layer.leaflet_layer);
+          }
+        },
+
+        disable_all_layers: function() {
+          var layer_slugs = Object.keys(this.geojson_layers);
+          for (var i=0; i<layer_slugs.length; i++) {
+            this.disable_layer(layer_slugs[i]);
+          }
+        },
+
+        enable_all_layers: function() {
+          var layer_slugs = Object.keys(this.geojson_layers);
+          for (var i=0; i<layer_slugs.length; i++) {
+            this.enable_layer(layer_slugs[i]);
+          }
+        },
+
       });
 
     function render_map(cell) {