Aldersberegning

Jeg har følgende JavaScript på min hjemmeside, der skulle kunne udregne en persons alder ud fra fødselsdatoen. Efter årtusindeskiftet virker det dog desværre ikke så godt. Hvis man bruger det i Explorer vil jeg blive 30 om godt og vel 693.852 dage, mens jeg i Netscape er -1871 år.

Er der nogen der kan sige mig hvad der skal ændres??

Her er scriptet:

<script language="JavaScript"><!--
// Original: Glub, Un-Inc. -->

<!-- This script and many more are available free online at -->
<!-- The JavaScript Source!! http://javascript.internet.com -->

<!-- Begin
var mm = prompt('What month were you born in?','1-12');
var bday = prompt('What day were you born on?','1-31');
var byear = prompt('What year were you born in?','1975');
var year = new Date();
var year2 = year.getYear();
var year3 = year2 + 1900;
thedate = new Date();
mm2 = thedate.getMonth() + 1;
dd2 = thedate.getDate();
yy2 = thedate.getYear();
if (yy2 < 100) yy2 += 1900
yourage = yy2 - byear;
if (mm2 < mm) yourage--;
if ((mm2 == mm) && (dd2 < bday)) yourage--;
TMonth = new Array(
'January','February','March',
'April','May','June','July',
'August','September','October',
'November','December'
);
CurMonth = mm - 1;
bmonth = TMonth[CurMonth];
var age2 = yourage + 1;
var timerID;
var timerRunning = false;
var today = new Date();
var startday = new Date();
var enday = new Date();
var secPerDay = 0;
var minPerDay = 0;
var hourPerDay = 0;
var secsLeft = 0;
var secsRound = 0;
var secsRemain = 0;
var minLeft = 0;
var minRound = 0;
var minRemain = 0;
var timeRemain = 0;
function stopclock() {
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}
function startclock() {
stopclock();
showtime();
showtime1();
}
function showtime() {
today = new Date();
enday = new Date(""+bmonth+", "+bday+" "+year3+" 00:00");
enday.setYear(""+year3+"");
secsPerDay = 1000 ;
minPerDay = 60 * 1000 ;
hoursPerDay = 60 * 60 * 1000;
PerDay = 24 * 60 * 60 * 1000;
secsLeft = (enday.getTime() - today.getTime()) / minPerDay;
secsRound = Math.round(secsLeft);
secsRemain = secsLeft - secsRound;
secsRemain = (secsRemain < 0) ? secsRemain = 60 - ((secsRound - secsLeft) * 60) : secsRemain = (secsLeft - secsRound) * 60;
secsRemain = Math.round(secsRemain);
minLeft = ((enday.getTime() - today.getTime()) / hoursPerDay);
minRound = Math.round(minLeft);
minRemain = minLeft - minRound;
minRemain = (minRemain < 0) ? minRemain = 60 - ((minRound - minLeft) * 60) : minRemain = ((minLeft - minRound) * 60);
minRemain = Math.round(minRemain - 0.495);
hoursLeft = ((enday.getTime() - today.getTime()) / PerDay);
hoursRound = Math.round(hoursLeft);
hoursRemain = hoursLeft - hoursRound;
hoursRemain = (hoursRemain < 0) ? hoursRemain = 24 - ((hoursRound - hoursLeft) * 24) : hoursRemain = ((hoursLeft - hoursRound) * 24);
hoursRemain = Math.round(hoursRemain - 0.5);
daysLeft = ((enday.getTime() - today.getTime()) / PerDay);
daysLeft = (daysLeft - 0.5);
daysRound = Math.round(daysLeft);
daysRemain = daysRound;
if (daysRemain == 1) day_rem = " day, "
else day_rem = " days, "
if (hoursRemain == 1) hour_rem = " hour, "
else hour_rem = " hours, "
if (minRemain == 1) min_rem = " minute, "
else min_rem = " minutes, "
if (secsRemain == 1) sec_rem = " second"
else sec_rem = " seconds"
timeRemain = daysRemain + day_rem + hoursRemain + hour_rem + minRemain + min_rem + secsRemain + sec_rem;
document.down.face.value = timeRemain;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
if (daysRemain < 0) year3 = year3 + 1
}
function showtime1() {
startday = new Date(""+bmonth+" "+bday+", "+byear+" 00:00 EDT");
startday.setYear(""+byear+"");
today = new Date();
secsPerDay = 1000 ;
minPerDay = 60 * 1000 ;
hoursPerDay = 60 * 60 * 1000;
PerDay = 24 * 60 * 60 * 1000;
secsLeft = (today.getTime() - startday.getTime()) / minPerDay;
secsRound = Math.round(secsLeft);
secsRemain = secsLeft - secsRound;
secsRemain = (secsRemain < 0) ? secsRemain = 60 - ((secsRound - secsLeft) * 60) : secsRemain = (secsLeft - secsRound) * 60;
secsRemain = Math.round(secsRemain);
minLeft = ((today.getTime() - startday.getTime()) / hoursPerDay);
minRound = Math.round(minLeft);
minRemain = minLeft - minRound;
minRemain = (minRemain < 0) ? minRemain = 60 - ((minRound - minLeft) * 60) : minRemain = ((minLeft - minRound) * 60);
minRemain = Math.round(minRemain - 0.495);
hoursLeft = ((today.getTime() - startday.getTime()) / PerDay);
hoursRound = Math.round(hoursLeft);
hoursRemain = hoursLeft - hoursRound;
hoursRemain = (hoursRemain < 0) ? hoursRemain = 24 - ((hoursRound - hoursLeft) * 24) : hoursRemain = ((hoursLeft - hoursRound) * 24);
hoursRemain = Math.round(hoursRemain - 0.5);
daysLeft = ((today.getTime() - startday.getTime()) / PerDay);
daysLeft = (daysLeft - 0.5);
daysRound = Math.round(daysLeft);
daysRemain = daysRound;
if (daysRemain == 1) day_rem = " day, "
else day_rem = " days, "
if (hoursRemain == 1) hour_rem = " hour, "
else hour_rem = " hours, "
if (minRemain == 1) min_rem = " minute, "
else min_rem = " minutes, "
if (secsRemain == 1) sec_rem = " second"
else sec_rem = " seconds"
timeRemain = daysRemain + day_rem + hoursRemain + hour_rem + minRemain + min_rem + secsRemain + sec_rem;
document.up.face.value = timeRemain;
timerID = setTimeout("showtime1()",1000);
timerRunning = true;
}
// End
// --></script>


Det kan også findes på http://welcome.to/tommyv under små programmer.