The CssMapMarker object supports the following options.

Required:
map - the map to which the css marker should be added
marker - the marker to which the css marker should be bound

Optional:
id - The element id to be used on the marker
innerHTML - HTML to append to the marker
className - the class name to use on the marker. (default: cssmapmarker)
onDrawn - callback function for when the css marker is drawn
onAdded - callback function for when the css marker is added to the map