 		if @_sortCriteria
 			items = cola.util.sort(items, @_sortCriteria)
 		return items
-		
+
 	_sysHeaderClick: (column) ->
 		if column instanceof cola.TableDataColumn and column.get("sortable")
 			sortDirection = column.get("sortDirection")

						else if typeof parameter isnt "object" or parameter instanceof Date
							throw new cola.Exception("Can not set sort parameter automatically.")
						parameter.sort = criteria

						collection.flush()
						processed = true

				if not processed

			else
				criteria = if sortDirection is "asc" then "+" else "-"
				property = column._bind
				if not property or property.match(/\(/)
					property = column._property
				if not property then return

				if property.charCodeAt(0) is 46 # `.`
					property = property.slice(1)
