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be able to navigate to and access the calendar form field by using the “TAB” key on the keyboard
be able to either:
a) type the dates in the form field, OR
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be able to press the “ENTER” key on the keyboard to activate the calendar button
be able to either:
a) use the “TAB” key on the keyboard to navigate through the months and years in the calendar widget, OR
b) user the arrow keys to and navigate through the dates for the current month and then continue to the next month
be able to use the left/right ←/→ arrow keys on the keyboard to navigate between dates in the calendar widget
be able to use the “ENTER” key on the keyboard to select a date in the calendar widget
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