silverstripe-framework/javascript/CalendarDateField.js

(function($) {
	$.entwine('ss', function($){
		/**
		 * Formats a <input type="text"> field with a jQuery UI datepicker.
		 * 
		 * Requires: concrete, ui.datepicker, jquery.metadata
		 * 
		 * @author Ingo Schommer, SilverStripe Ltd.
		 */
		$('.calendardate').entwine({
			onmatch: function() {
				this.find('input').each(function() {
					var conf = $(this).metadata();
					if(conf.minDate) conf.minDate = new Date(Date.parse(conf.minDate));
					
					$(this).datepicker(conf);
				});
			}
		});
	});
}(jQuery));