 
 	@defaults:
 		button_tooltip: "Open calendar"
+		bc_appendix: ["B.C.","BC"]
 
 	initOpts: ->
 		super()

		if not mom.isValid()
			return null

		return mom.format(dt.getCurrentFormatDisplay())

	@toMoment: (datestr) ->
		if CUI.util.isEmpty(datestr)


		# console.debug "display format", s, output_type, CUI.util.dump(output_format), output_format[type], type

		v = mom.format(output_format[type])
		if mom.bc
			v = v + " " + CUI.DateTime.defaults.bc_appendix[0]
		v

	regexpMatcher: ->
		YYYY:
