}else if(eventSource == number_year){
if (number_year.getInteger() == 0){
partial = TimePeriod.setPartialField(partial, null, TimePeriod.YEAR_TYPE);
} else{
partial = TimePeriod.setPartialField(partial, number_year.getInteger(), TimePeriod.YEAR_TYPE);
}
}else if(eventSource == number_year){
if (number_year.getInteger() == 0){
partial = TimePeriod.setPartialField(partial, null, TimePeriod.YEAR_TYPE);
} else{
partial = TimePeriod.setPartialField(partial, number_year.getInteger(), TimePeriod.YEAR_TYPE);
}