//Current date in form script
//By Lee Hinder (lee.hinder@ntlworld.com)
//Visit http://javascriptkit.com for this script and more
//set todays date
Now = new Date();
NowDay = Now.getDate();
NowMonth = Now.getMonth();
NowYear = Now.getYear();
if (NowYear < 2000) NowYear += 1900; //for Netscape

//function for returning how many days there are in a month including leap years
function DaysInMonth(WhichMonth, WhichYear) {
	var DaysInMonth = 31;
	if (WhichMonth == "Apr" || WhichMonth == "Jun" || WhichMonth == "Sep" || WhichMonth == "Nov") DaysInMonth = 30;
	if (WhichMonth == "Feb" && (WhichYear/4) != Math.floor(WhichYear/4))
	DaysInMonth = 28;
	if (WhichMonth == "Feb" && (WhichYear/4) == Math.floor(WhichYear/4))
	DaysInMonth = 29;
	return DaysInMonth;
}

//function to change the available days in a months
function ChangeOptionDays(Which) {
	DaysObject = document.forms['caform'].elements['zday'];
	MonthObject = document.forms['caform'].elements['zmonth'];
	YearObject = document.forms['caform'].elements['zyear'];
	Month = MonthObject[MonthObject.selectedIndex].text;
	Year = YearObject[YearObject.selectedIndex].text;
	DaysForThisSelection = DaysInMonth(Month, Year);
	CurrentDaysInSelection = DaysObject.length;
	if (CurrentDaysInSelection > DaysForThisSelection) {
		for (i=0; i<(CurrentDaysInSelection-DaysForThisSelection); i++) {
			DaysObject.options[DaysObject.options.length - 1] = null
		}
	}
	if (DaysForThisSelection > CurrentDaysInSelection) {
		for (i=0; i<(DaysForThisSelection-CurrentDaysInSelection); i++) {
			NewOption = new Option(DaysObject.options.length + 1);
			DaysObject.add(NewOption);
		}
	}
	if (DaysObject.selectedIndex < 0) DaysObject.selectedIndex == 0;
}

//function to set options to today
function SetToToday(Which) {
	DaysObject = document.forms['caform'].elements['zday'];
	MonthObject = document.forms['caform'].elements['zmonth'];
	YearObject = document.forms['caform'].elements['zyear'];
	YearObject[0].selected = true;
	MonthObject[NowMonth].selected = true;
	ChangeOptionDays(Which);
	DaysObject[NowDay-1].selected = true;
}

//function to write option years plus x
function WriteYearOptions(YearsAhead) {
	line = "";
	for (i=0; i<YearsAhead; i++) {
		line += "<option>";
		line += NowYear + i;
		line += "</option>";
	}
	return line;
}