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Published on: Saturday 22nd November 1997 By: Martin Webb
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function y2k(number) { return (number < 1000) ? number + 1900 : number; }
var today = new Date();
var year = y2k(today.getYear());
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function ChosenDate(object) {
year = object.year.value;
if (parent.location.href != window.location.href) {
parent.year = year;
parent.outputFrame.location.href = 'output.htm';
}
else {
return true;
}
return false;
}
function y2k(number) { return (number < 1000) ? number + 1900 : number; }
var today = new Date();
var thisYear = y2k(today.getYear());
var yearOutput = '<INPUT TYPE="TEXT" NAME="year" SIZE="4" VALUE="' + thisYear + '">';
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<H2>Select year:</H2>
<FORM NAME="inputDateForm" ACTION="output.htm" onSubmit="return ChosenDate(document.inputDateForm);">
Year:
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document.write(yearOutput);
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<SCRIPT LANGUAGE="JavaScript"><!--
function DayOfWeek(day,month,year) {
var a = Math.floor((14 - month)/12);
var y = year - a;
var m = month + 12*a - 2;
var d = (day + y + Math.floor(y/4) - Math.floor(y/100) +
Math.floor(y/400) + Math.floor((31*m)/12)) % 7;
return d + 1;
}
function makeArray() {
this[0] = makeArray.arguments.length;
for (i = 0; i<makeArray.arguments.length; i++)
this[i+1] = makeArray.arguments[i];
}
var daysofmonth = new makeArray( 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
var daysofmonthLY = new makeArray( 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
function LeapYear(year) {
if ((year/4) != Math.floor(year/4)) return false;
if ((year/100) != Math.floor(year/100)) return true;
if ((year/400) != Math.floor(year/400)) return false;
return true;
}
function NthDay(nth,weekday,month,year) {
if (nth > 0) return (nth-1)*7 + 1 + (7 + weekday - DayOfWeek((nth-1)*7 + 1,month,year))%7;
if (LeapYear(year)) var days = daysofmonthLY[month];
else var days = daysofmonth[month];
return days - (DayOfWeek(days,month,year) - weekday + 7)%7;
}
var sun=1,mon=2,tue=3,wed=4,thu=5,fri=6,sat=7;
var jan=1,feb=2,mar=3,apr=4,may=5,jun=6,jul=7,aug=8,sep=9,oct=10,nov=11,dec=12;
var first=1,second=2,third=3,fourth=4,fifth=5,last=-1;
var daysofweek = new makeArray('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
var monthsofyear = new makeArray('January','February','March','April','May','June','July','August','September','October','November','December');
function DayOfWeek(day,month,year) {
var a = Math.floor((14 - month)/12);
var y = year - a;
var m = month + 12*a - 2;
var d = (day + y + Math.floor(y/4) - Math.floor(y/100) + Math.floor(y/400) + Math.floor((31*m)/12)) % 7;
return d+1;
}
function Nths(day) {
if (day == 1 || day == 21 || day == 31) return 'st';
if (day == 2 || day == 22) return 'nd';
if (day == 3 || day == 23) return 'rd';
return 'th';
}
function FullDate(day,month,year) {
return daysofweek[DayOfWeek(day,month,year)] +' '+ day + Nths(day) +' '+ monthsofyear[month] +' '+ year;
}
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<SCRIPT LANGUAGE="JavaScript"><!--
if (location.search.length == 0)
var year = parent.year - 0;
else
var year = location.search.substring(6) - 0;
document.write("Martin Luther King Day - " + FullDate(NthDay(third,mon,jan,year),jan,year) + '<BR>');
document.write("President's Day - " + FullDate(NthDay(third,mon,feb,year),feb,year) + '<BR>');
document.write("Daylight Savings time begins - " + FullDate(NthDay(first,sun,apr,year),apr,year) + '<BR>');
document.write("May Day Bank Holiday (United Kingdom) - " + FullDate(NthDay(first,mon,may,year),may,year) + '<BR>');
document.write("Armed Forces Day - " + FullDate(NthDay(third,sat,may,year),may,year) + '<BR>');
document.write("Mother's Day - " + FullDate(NthDay(second,sun,may,year),may,year) + '<BR>');
document.write("Spring Bank Holiday (United Kingdom) - " + FullDate(NthDay(last,mon,may,year),may,year) + '<BR>');
document.write("Memorial Day - " + FullDate(NthDay(last,mon,may,year),may,year) + '<BR>');
document.write("Father's Day - " + FullDate(NthDay(third,sun,jun,year),jun,year) + '<BR>');
document.write("Late Summer Holiday (United Kingdom) - " + FullDate(NthDay(last,mon,aug,year),aug,year) + '<BR>');
document.write("Labor Day - " + FullDate(NthDay(first,mon,sep,year),sep,year) + '<BR>');
document.write("Columbus Day - " + FullDate(NthDay(second,mon,oct,year),oct,year) + '<BR>');
document.write("Daylight Savings Time ends - " + FullDate(NthDay(last,sun,oct,year),oct,year) + '<BR>');
document.write("Thanksgiving Day - " + FullDate(NthDay(fourth,thu,nov,year),nov,year) + '<BR>');
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</HTML>And now...The Weekly Update Script
Extending "Born of the 4th of July"