Multiple calendar systems in datepicker

Multiple calendar systems in datepicker


I needed a version of datepicker that supports multiple calendar
systems (as mentioned in http://jqueryui.pbwiki.com/DatePickerCalendar#commentnum1229614996).
I wrote a UI widget similar to datepicker, documented at
http://youngisrael-stl.org/wordpress/2009/04/03/new-jquery-widget-flexcal/
that others may find useful. It allows switching between calendar
systems and localizations, and uses the jQuery UI CSS framework.