{ if (!addOverlayLayer.hasOwnProperty(id)) { addOverlayLayer[id] = addOverlayLayerForId(id); } if ($map) { if (checked) { addOverlayLayer[id](); $map.on('style.load', addOverlayLayer[id]); } else { $map.removeLayer(id); $map.off('style.load', addOverlayLayer[id]); } } }} />