Looking at the docs here http://dev.openlayers.org/releases/OpenLayers-2.10/doc/apidocs/files/OpenLayers/Lang-js.html#OpenLayers.Lang.OpenLayers.i18n and then here http://dev.openlayers.org/releases/OpenLayers-2.10/doc/apidocs/files/OpenLayers/BaseTypes-js.html#OpenLayers.String.format 

`OpenLayers.i18n('addToMap')` I don't think this will work, I believe it will output `Add '${layerDesc}' to portal` we need to be passing in an object like `{ layerDesc: "some value for the layer"}` for it to work. The upside is that I don't believe this template is currently used.