1. Jason

2. Keyboard interaction
 PAGE UP: Move to the previous month.
 PAGE DOWN: Move to the next month.
 CTRL+PAGE UP: Move to the previous year.
 CTRL+PAGE DOWN: Move to the next year.
 CTRL+HOME: Move to the current month. Open the
datepicker if closed.
 CTRL+LEFT: Move to the previous day.
 CTRL+RIGHT: Move to the next day.
 CTRL+UP: Move to the previous week.
 CTRL+DOWN: Move the next week.
 ENTER: Select the focused date.
 CTRL+END: Close the datepicker and erase the date.
 ESCAPE: Close the datepicker without selection.

3. Localization
 default (English)
You can restore the default localizations with:
$.datepicker.setDefaults( $.datepicker.regional[ "" ] );
And can then override an individual datepicker for a specific locale:
$( selector ).datepicker( $.datepicker.regional[ "fr" ] );

4. altField
 Type: Selector or jQuery or Element
 Default: “”
 $( ".selector" ).datepicker(
{ altField:"#actualDate“ });

5. altFormat
 Type: String
 Default: "“
 $( ".selector" ).datepicker(
{ altFormat: "yy-mm-dd" });

6. appendText
 Type: String
 Default: "“
 $( ".selector" ).datepicker(
{ appendText: "(yyyy-mm-dd)" });

7. changeMonth, changeYear
 Type: Boolean
 Default: false
 $( ".selector" ).datepicker(
{ changeYear: true });

8. constrainInput
 Type: Boolean
 Default: true
 $( ".selector" ).datepicker(
{ constrainInput: false });

9. currentText
 Type: Boolean
 Default: true
 $( ".selector" ).datepicker(
{ currentText: "Now“,
showButtonPanel: true });

10. minDate, maxDate
 Type: Date or Number or String
 Default: null
 Date: A date object containing the minimum date.
 Number: For example
2 represents two days from today
-1 represents yesterday.
 String: For example, "+1m +7d" represents one month and seven
days from today.
 $( ".selector" ).datepicker({ minDate: “+1m +7d”});

11. hideIfNoPrevNext
 Type: Boolean
 Default: false
 $( ".selector" ).datepicker(
{
hideIfNoPrevNext: true,
minDate: “+1m +7d”
});

12. isRTL
 Type: Boolean
 Default: false
 Whether the current language is drawn from
right to left.
 $( ".selector" ).datepicker({ isRTL: true });

13. numberOfMonths
 Type: Number or Array
 Default: 1
 The number of months to show at once.
 Number: The number of months to display in a single row.
 Array: An array defining the number of rows and columns
to display.
 $( ".selector" ).datepicker(
{ numberOfMonths: [ 2, 3 ] });

14. showCurrentAtPos
 Type: Number
 Default: 0
 The showCurrentAtPos option defines
which position to display the current
month in.
 $( ".selector" ).datepicker(
{ showCurrentAtPos: 3,
numberOfMonths: [ 2, 3 ]
});

15. selectOtherMonths
 Type: Boolean
 Default: false
 $( ".selector" ).datepicker(
{
selectOtherMonths: true ,
showOtherMonths: true
});

16. stepMonths
 Type: Number
 Default: 1
 Set how many months to move when clicking
the previous/next links.
 $( ".selector" ).datepicker({ stepMonths: 3 });

17. showWeek
 Type: Boolean
 Default: false
 When true, a column is added to show
the week of the year.
 $( ".selector" ).datepicker(
{ showWeek: true });

18. weekHeader
 Type: String
 Default: "Wk“
 The text to display for the week of the
year column heading
 $( ".selector" ).datepicker(
{ weekHeader: "W"
showWeek:true});

19. showMonthAfterYear
 Type: Boolean
 Default: false
 Whether to show the month after the
year in the header.
 $( ".selector" ).datepicker(
{ showMonthAfterYear: true });

20. showButtonPanel
 Type: Boolean
 Default: false
 Whether to show the button panel.
 $( ".selector" ).datepicker(
{ showButtonPanel: true });