 		date_sel = new Select(
 			name: "date"
 			data: data
+			group: "date"
 			onDataChanged: =>
 				@updateCalendar(mom.date(data.date))
 			options: =>

		month_sel = new Select(
			name: "month"
			data: data
			onDataChanged: =>
				@updateCalendar(mom.month(data.month))
			options: =>

		year_sel = new Select(
			name: "year"
			data: data
			group: "date"
			onDataChanged: =>
				@updateCalendar(mom.year(data.year))
			options: =>
