/* Function XmasDays ()
	Purpose: Calculate the number of days between Christmas and a given date
	
	Variables
	CheckDay: A date object containing the given date
	XYear: The 4-digit year value of the given date
	XDay: December 25 in the year of the given date
	DayCount: The number of days between Christmas and the given date
	*/
	
	function XmasDays(CheckDay) {
		var XYear=CheckDay.getFullYear();
		XDay.setFullYear(XYear);
		var DayCount=(XDay-CheckDay)/(1000*60*60*24);
		DayCount=Math.round(DayCount);
		return DayCount;
		}