/* 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 PartyDays(CheckDay) {
   var XYear=CheckDay.getFullYear ();
   var XDay=new Date("June, 8, 2007");
   XDay.setFullYear(XYear);
   var DayCount=(XDay-CheckDay)/(1000*60*60*24);
   DayCount=Math.round(DayCount);
   return DayCount;
   }