InfoPath Dev

Hi, I am working on an infopath form 2013 which has a calander control in it. I want to restrict users to select the weekdays (Mon to Fri). I want them to be able to select only the weekends (Sun and Sat). Please let me know how this can be done? Thx Tirumal

 This can be done only with extremely complicated logic. My suggestion is to download a trial of Qdabra Rules and use the DateDiff command, which can be configured to ignore weekends. You can get a free trial here: http://www.qdabra.com/en/products/download/qRulesTrial.aspx