This page uses external jquery UI libraries to create ui widgets.

To work correctly you will need an internet connection!

The head section of the page has a script link to jquery-ui.min.js
and a css link to jquery-ui.css

A statement:
page_data['add_jscript'] = """$( "#date" ).datepicker();"""
is then set in the end_call function, which sets the 'date' widget to be a datepicker.

Date not set.