code: function(date) {
  		var checkDate = new Date(date.getTime());
  		// Find Thursday of this week starting on Monday
  		checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
  		var time = checkDate.getTime();
  		checkDate.setMonth(0); // Compare with Jan 1
  		checkDate.setDate(1);
  		return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
  	}
docs: /* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
  @param  date  Date - the date to get the week for
  @return  number - the number of the week within the year that contains this date