unds);
			featureGroupBoundsBtn.addEventListener('click', featureGroupBounds);

			function geojsonLayerBounds() {
				if (rectangle) {
					rectangle.setBounds(geojson.getBounds());
				} else {
					rectangle = new Rectangle(geojson.getBounds());
					map.addLayer(rectangle);
				}
			}

			function featureGroupBounds() {
				if (rectangle) {
					rectangle.setBounds(featureGroup.getBounds());
				} else {
					rectangle = new Rectangle(featureGroup.getBounds());
					map.addLayer(rectangle);
				}
			}
	