This demo uses the jQuery UI Datepicker widget combined with a 3rd party wrapper to make this work with jQuery Mobile. This widget has all the same options and methods as the jQuery UI widget.
For documentation on the Datepicker widget, please see the jQuery UI API docs.
For information and support on the jQuery Mobile Wrapper, please see https://github.com/arschmitz/jquery-mobile-datepicker-wrapper.
PLEASE NOTE: This is not a jQuery Mobile widget and is not supported by jQuery Mobile.
The Popup does not always position well for use on small screens and mobile devices there for the wrapper adds an inline option this option makes the calendar for the datepicker show up inline after the input which it is called on avoiding the issues related to popups