code: function(oField, oDate, bUTC, oFormat) {
  				var iDay = bUTC ? oDate.getUTCDay() : oDate.getDay();
  				if (oField.digits < 4) {
  					return oFormat.aDaysAbbrev[iDay];
  				} else if (oField.digits == 4) {
  					return oFormat.aDaysWide[iDay];
  				} else if (oField.digits == 5) {
  					return oFormat.aDaysNarrow[iDay];
  				} else {
  					return oFormat.aDaysShort[iDay];
  				}
  			}
docs: Day of week name, format style.