Very nice. Thank you!
> -----Original Message-----
> From: Anthony M. Humphreys [mailto:[EMAIL PROTECTED]
> Sent: Friday, February 28, 2003 8:42 AM
> To: [EMAIL PROTECTED]
> Subject: Witango-Talk: Dates
>
>
> I was getting tired of JS and Tango only recognising a small
> number of dates. I often need to calculate the days between
> dates outside of the built-in date ranges. So, here's a
> little JavaScript for us that calculates the number of days
> between dates, using the Gregorian Calendar conventions, good
> for ANY date.
>
> Enjoy!
>
> <SCRIPT>
> function daysBetweenDates() {
> var StartYear = new Number(1900);
> var StartMonth = new Number(1);
> var StartDay = new Number(1);
> var EndYear = new Number(1970);
> var EndMonth = new Number(1);
> var EndDay = new Number(1);
> function DaysFromZero (yy,mm,dd) {
> // Corrects the month/year for the average
> number days per month
> if ((mm - 3)>=0) {
> mm = mm + 1;
> } else {
> mm = mm + 13;
> yy = yy - 1;
> };
> // Calculates the number of days from an
> arbitrary epoch,
> // uses Julian formula, minus corrections for
> Pope Gregory's leap year rules
> return (parseInt(365.25 * yy) + parseInt(30.6 *
> mm) + dd - parseInt(yy / 100.00) + parseInt(yy / 400));
> };
> var I = DaysFromZero(EndYear,EndMonth,EndDay);
> var J = DaysFromZero(StartYear,StartMonth,StartDay);
> return (I-J+1);
> };
> alert (daysBetweenDates());
> </SCRIPT>
>
>
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