DDate in JS

ddate.js

// title: Discordian Date Converter
// filename: ddate.js
// author: Lord Anas Mystosis Nebuchadnezzar XXXVII
// URL: http://kronkltd.net/

// Format Key:
// d - Day of the month, 2 digits with leading zeros (01 - 73)
// D - A textual representation of a day, three letters (Swt, Bmt, Pun, Pri, Set)
// F - A full textual representation of a month (Chaos, Discord, Confusion, Bureaucracy, Aftermath)
// j - Day of the month without leading zeros (1 - 73)
// l - A full textual representation of the day of the week (Sweetmorn, Boomtime, Pungenday, Prickle-Prickle, Setting Orange)
// m - Numeric representation of a month, with leading zeros (01 - 05)
// M - A short textual representation of a month, three letters (Cha, Dis, Con, Bur, Aft)
// n - Numeric representation of a month, without leading zeros (1 - 5)
// w - Numeric representation of the day of the week (0 for Sweetmorn through 4 for Setting Orange)
// Y - A full numeric representation of a year, 4 digits (eg. 3170)
// y - A two digit representation of a year (eg. 70)

function DDate(format, timestamp) 
{
	var output = "";
	
	var gMonth = timestamp.getMonth() + 1;
	var gDay = timestamp.getDate();
	var gYear = timestamp.getFullYear();
	var dYear = gYear + 1166;
	var nDay = 0;
	var monthNum = new Array(0, 31, 59, 90, 120, 150, 181, 212, 242, 273, 303, 334);
	var dayInYear = monthNum[gMonth - 1] + gDay - 1;
	var dMonth = Math.floor(dayInYear / 73) + 1;
	var dDay = dayInYear - ((dMonth - 1) * 73) + 1;
	
	var daynumber = (dayInYear % 5) + 1;
	var dayName3 = new Array('Swt', 'Bmt', 'Pun', 'Pri', 'Set');
	var monthName3 = new Array('Cha', 'Dis', 'Con', 'Bur', 'Aft')
	var dayNameFull = new Array('Sweetmorn', 'Boomtime', 'Pungenday', 'Prickle-Prickle', 'Setting Orange');
	var monthNameFull = new Array('Chaos', 'Discord', 'Confusion', 'Bureaucracy', 'Aftermath');
	
	for (x = 0; x < format.length; x++)
	{
	    switch (format[x])
	    {
	        case 'd':
	        {
	            if (dDay < 10)
	            {
	                output += '0' + dDay;
	            }
	            else
	            {
	                output += dDay;
	            }
	            break;
	        }
	        case 'D':
	        {
	            output += dayName3[daynumber - 1];
	            break;
	        }
	        case 'F':
	        {
	            output += monthNameFull[dMonth -1];
	            break;
	        }
	        case 'j':
	        {
	            output += dDay;
	            break;
	        }
	        case 'l':
	        {
	            output += dayNameFull[daynumber - 1];
	            break;
	        }
	        case 'm':
	        {
	            output += '0' + dMonth;
	            break;
	        }
	        case 'M':
	        {
	            output += monthName3[dMonth - 1];
	            break;
	        }
	        case 'n':
	        {
	            output += dMonth;
	            break;
	        }
	        case 'w':
	        {
	            output += (daynumber - 1);
	            break;
	        }
	        case 'Y':
	        {
	            output += dYear;
	            break;
	        }
	        case 'y':
	        {
	            output += (dYear % 100);
	            break;
	        }
	        default:
	        {
	            output += format[x];
	            break;
	        }
	    }
	}
	
	document.writeln(output);
}