function Date_changer(){

	var today = new Date();
	var date_yearfrom = today.getYear();
	var date_monthfrom = today.getMonth();
	var date_dayfrom = today.getDate();
	date_monthfrom = date_monthfrom + 1;
	var date_yearend;
	var date_monthend;
	var date_dayend;
	
	var daysinmonth = Get_days_in_month(date_monthfrom);

	if((date_monthfrom == 12) && (date_dayfrom == 31)){
		date_yearend = date_yearfrom + 1;
		date_monthend = 1;
		date_dayend = 1;
	}
	else{
		date_yearend = date_yearfrom;

		if((date_dayfrom + 1) > daysinmonth){
			date_monthend = date_monthfrom + 1;
			date_dayend = 1;
		}
		else{
			date_monthend = date_monthfrom;
			date_dayend = date_dayfrom + 1;
		}

	}
	


	document.reserv.yearfrom.value= date_yearfrom;
	document.reserv.yearend.value= date_yearend;
	
	document.reserv.monthfrom.value= date_monthfrom;
	document.reserv.monthend.value = date_monthend;
	
	document.reserv.dayfrom.value = date_dayfrom;
	document.reserv.dayend.value = date_dayend;
}

function Get_days_in_month(date_monthfrom) {


	switch(date_monthfrom){
		case  1:
			days = 31;
			break;
		case 2 :
			days = 28;
			break;
		case 3 :
			days = 31;
			break;
		case 4 :
			days = 30;
			break;
		case 5 :
			days = 31;
			break;
		case 6 :
			days = 30;
			break;
		case 7 :
			days = 31;
			break;
		case 8 :
			days = 31;
			break;
		case 9 :
			days = 30;
			break;
		case 10 :
			days = 31;
			break;
		case 11 :
			days = 30;
			break;
		case 12 :
			days = 31;
			break;
	}
	
	return days;
}