It is suppose to show a week range (e.g. "6/23/2014 - 6/27/2014") based on the date you pass it.
I wouldn't advise trying to shoe horn this into your existing query. You should build a new query using that initial query as its data source.
I wouldn't advise trying to shoe horn this into your existing query. You should build a new query using that initial query as its data source.