The j Query UI Datepicker is a highly configurable plugin that adds datepicker functionality to your pages.
While the datepicker is open, the following key commands are available: Determine the week of the year for a given date: 1 to 53.
This function uses the ISO 8601 definition of a week: weeks start on a Monday and the first week of the year contains January 4.
This means that up to three days from the previous year may be included in the of first week of the current year, and that up to three days from the current year may be included in the last week of the previous year.
This function is the default implementation for the Datepicker provides support for localizing its content to cater for different languages and date formats.
Each localization is contained within its own file with the language code appended to the name, e.g., for French.
The desired localization file should be included after the main datepicker code.
Each localization file adds its options to the set of available localizations and automatically applies them as defaults for all instances.
Localization files can be found at https://github.com/jquery/jquery-ui/tree/master/ui/i18n.
The The datepicker widget uses the j Query UI CSS framework to style its look and feel.
If datepicker specific styling is needed, the following CSS class names can be used for overrides or as keys for the A function to calculate the week of the year for a given date.
The default implementation uses the ISO 8601 definition: weeks start on a Monday; the first week of the year contains the first Thursday of the year., or a number of days from today (e.g. Any dates entered with a year value less than or equal to the cutoff year are considered to be in the current century, while those greater than it are deemed to be in the previous century.