# Enhancements and Additions ## Dotless identifiers Previously, objects generated by the library were given id properties with values that contained dots (e.g. "OpenLayers.Control.Navigation_2"). These same identifiers are also used for DOM elements in some case. Though uncommon, a developer may want to access these elements with a CSS selector. To facilitate this, we now always generate ids with underscore instead of dot. Corresponding issues/pull requests: * https://github.com/openlayers/openlayers/pull/416