/**
  * Is the given year a year year in the Julian Calendar?
  * @param yyyy the year
  * @return true if the year is a leap year
  */
public static final boolean isLeapViaJulian ( int yyyy )
   {
   if ( yyyy < 0 )
      {
      return( yyyy + 1 ) % 4 == 0;
      }
   else
      {
      return yyyy % 4 == 0;
      }
   }