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<script language="JavaScript">
<!--
<!--
// -->
/********************************************************************************/
/*
*/
/* solar.js - Solar Date Utility Functions
*/
/* Copyright(C) 2002-2003 Mahmood Shafiee Zargar, all rights reserved.
*/
/*
*/
/* sobh@softhome.net
*/
/* http://sobh.netfirms.com
*/
/*
*/
/* Original Pascal Code By Kambiz R. Khojaste
*/
/*
*/
/* This file is provided "AS IS" without any warranty of any kind, either
*/
/* express or implied. The entire risk as to the quality and performance
*/
/* of the functions provided in this unit are with you. The author is NOT
*/
/* liable for any DAMAGES resulting from the use and misuse of the unit,
*/
/* especially he is NOT liable for DAMAGES that were caused BY ANY VERSION
*/
/* WHICH HAS NOT BEEN PROGRAMMED BY THE AUTHOR HIMSELF.
*/
/*
*/
/********************************************************************************/
var dkSolar = 0;
var dkGregorian = 1;
var DaysOfMonths = new Array();
var LeapMonth = new Array();
var DaysToMonth = new Array();
DaysOfMonths = [[31, 31, 31, 31, 31, 31, 30, 30, 30, 30, 30, 29], [31, 28, 31,
30, 31, 30, 31, 31, 30, 31, 30, 31]];
LeapMonth = [12, 2];
DaysToMonth = [[0, 31, 62, 93, 124, 155, 186, 216, 246, 276, 306, 336, 365], [0,
31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365]];
function Integer(val)
{
this.value = val;
}
function IsLeapYear(DateKind, Year)
{
if (DateKind == dkSolar)
return ((((Year + 38) * 31) % 128) <= 30);
else
return (((Year % 4) == 0) && (((Year % 100) != 0) || ((Year % 400) == 0)));
}
function DaysOfMonth(DateKind, Year, Month)
{
var Result;
if ((Year != 0) && ((Month <= 12) && (Month >= 1)))
{
Result = DaysOfMonths[DateKind][Month - 1];
if ((Month == LeapMonth[DateKind]) && IsLeapYear(DateKind, Year)) Result++;
}
else
Result = 0;
return Result;
}
function IsDateValid(DateKind, Year, Month, Day)
{
return ((Year!= 0) && (Month >= 1) && (Month <= 12) && (Day >= 1) && Day <= (DaysOfMonth(DateKind,
Year, Month)));
}
function DaysToDate(DateKind, Year, Month, Day)
{
var Result;
if (IsDateValid(DateKind, Year, Month, Day))
{
Result = DaysToMonth[DateKind][Month - 1] + Day;
if ((Month > LeapMonth[DateKind]) && IsLeapYear(DateKind, Year)) Result++;
}
else
Result = 0;
return Result;
}
function DateOfDay(DateKind, Days, Year, Month, Day)
{
var LeapDay = 0;
Month.value = 0;
Day.value = 0;
for (var m = 2; m <= 13; m++)
{
if ((m > LeapMonth[DateKind]) && (IsLeapYear(DateKind, Year))) LeapDay = 1;
if (Days <= (DaysToMonth[DateKind][m - 1] + LeapDay))
{
Month.value = m - 1;
if (Month.value <= LeapMonth[DateKind]) LeapDay = 0;
Day.value = Days - (DaysToMonth[DateKind][Month.value - 1] + LeapDay);
break;
}
}
return IsDateValid(DateKind, Year, Month.value, Day.value);
}
function GregorianToSolar(Year, Month, Day)
{
var LeapDay, Days, PrevGregorianLeap, Result;
if (IsDateValid(dkGregorian, Year.value, Month.value, Day.value))
{
PrevGregorianLeap = IsLeapYear(dkGregorian, Year.value - 1);
Days = DaysToDate(dkGregorian, Year.value, Month.value, Day.value);
Year.value -= 622;
if (IsLeapYear(dkSolar, Year.value)) LeapDay = 1
else LeapDay = 0;
if (PrevGregorianLeap && (LeapDay == 1)) Days += 287
else Days += 286;
if (Days > (365 + LeapDay))
{
Year.value++;
Days -= (365 + LeapDay);
}
Result = DateOfDay(dkSolar, Days, Year.value, Month, Day);
}
else Result = false;
return Result;
}
function SolarToGregorian(Year, Month, Day)
{
var LeapDay, Days, PrevSolarLeap, Result;
if (IsDateValid(dkSolar, Year.value, Month.value, Day.value))
{
PrevSolarLeap = IsLeapYear(dkSolar, Year.value - 1);
Days = DaysToDate(dkSolar, Year.value, Month.value, Day.value);
Year.value += 621;
if (IsLeapYear(dkGregorian, Year.value)) LeapDay = 1
else LeapDay = 0;
if (PrevSolarLeap && (LeapDay = 1)) Days += 80
else Days += 79;
if (Days > (365 + LeapDay))
{
Year.value++;
Days -= (365 + LeapDay);
}
Result = DateOfDay(dkGregorian, Days, Year.value, Month, Day);
}
else Result = false;
return Result;
}
var MonthNames = new Array();
var WeekDayNames = new Array();
var MonthDayNames = new Array();
MonthNames = ["فروردین",
"اردیبهشت",
"خرداد", "تیر",
"مرداد",
"شهریور", "مهر",
"آبان", "آذر", "دی",
"بهمن", "اسفند"];
WeekDayNames = ["یکشنبه",
"دوشنبه", "سه
شنبه", "چهار
شنبه", "پنج
شنبه", "جمعه",
"شنبه"];
MonthDayNames = ["اول", "دوم",
"سوم", "چهارم",
"پنجم", "ششم",
"هفتم", "هشتم",
"نهم", "دهم",
"یازدهم",
"دوازدهم",
"سیزدهم",
"چهاردهم",
"پانزدهم",
"شانزدهم",
"هفدهم", "هجدهم",
"نوزدهم",
"بیستم", "بیست و
یکم", "بیست و
دوم", "بیست و
سوم", "بیست و
چهارم", "بیست و
پنجم", "بیست و
ششم", "بیست و
هفتم", "بیست و
هشتم", "بیست و
نهم", "سی ام", "سی و
یکم"];
function ConvertStr(DateStr, Format)
{
var Result;
var ObjDate = new Date();
var SplDate = DateStr.split("/");
var M = new Integer(parseInt(SplDate[0]));
var D = new Integer(parseInt(SplDate[1]));
var Y = new Integer(parseInt(SplDate[2]));
ObjDate.setFullYear(Y.value);
ObjDate.setMonth(M.value - 1);
ObjDate.setDate(D.value);
var W = ObjDate.getDay();
if (GregorianToSolar(Y, M, D))
switch (Format)
{
case 0:
Result = D.value + "/" + M.value + "/" + Y.value;
break;
case 1:
Result = D.value + "/" + M.value + "/" + (Y.value - Math.floor(Y.value / 100) *
100);
break;
case 2:
Result = (D.value + " " + MonthNames[M.value - 1] + " " + Y.value);
break;
case 3:
Result = (MonthDayNames[D.value - 1] + " " + MonthNames[M.value - 1] + " " +
Y.value);
break;
case 4:
Result = (MonthDayNames[D.value - 1] + " " + MonthNames[M.value - 1] + "
ماه " + Y.value);
break;
case 5:
Result = WeekDayNames[W] + "، " + D.value + "/" + M.value + "/" + Y.value;
break;
case 6:
Result = WeekDayNames[W] + "، " + D.value + "/" + M.value + "/" + (Y.value
- Math.floor(Y.value / 100) * 100);
break;
case 7:
Result = WeekDayNames[W] + "، " + (D.value + " " + MonthNames[M.value - 1]
+ " " + Y.value);
break;
case 8:
Result = WeekDayNames[W] + "، " + (MonthDayNames[D.value - 1] + " " +
MonthNames[M.value - 1] + " " + Y.value);
break;
case 9:
Result = WeekDayNames[W] + "، " + (MonthDayNames[D.value - 1] + " " +
MonthNames[M.value - 1] + " ماه " + Y.value);
break;
default:
Result = D.value + "/" + M.value + "/" + Y.value;
break;
}
else
Result = "Error converting date.";
return Result;
}
function ConvertDateTag(DateStr, Format)
{
return "<div align=right dir=rtl>" + ConvertStr(DateStr, Format) + "</div>";
}
function ConvertArchiveTag(DatesStr, Format)
{
var Dates = new Array();
Dates = DatesStr.split("-");
var Result = ConvertStr(Dates[0], Format) + " - " + ConvertStr(Dates[1],
Format);
return "<div align=right dir=rtl>" + Result + "</div>";
}
// -->
</script>
