Dit is wat ik in <head> heb gezet, zoals het stond vanaf de web waarin ik het gekopieerd heb. En ja het klopt dat ik nieuw ben met java, maar ik gebruik het ook nooit, tot nu dan

En ik bedoel select options
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 = eval("document.Form1." + Which + "Day");
MonthObject = eval("document.Form1." + Which + "Month");
YearObject = eval("document.Form1." + Which + "Year");
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 = eval("document.Form1." + Which + "Day");
MonthObject = eval("document.Form1." + Which + "Month");
YearObject = eval("document.Form1." + Which + "Year");
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;
}
return line;
}