计算你的出生日在星期几。有时间有点意思
<html>
<head><script LANGUAGE="JavaScript">
<!--
//Author: Michael Gudaitis
//e-mail: jojoo@jojoo.net
//You may use this script free of charge so long as
//this copyright information stays intact.
//copyright 1998
function cala_day(form) {
var nSwitch = 0
var nMonth = parseInt(form.month.value)
var nDay = parseInt(form.day.value)
var nYear = parseInt(form.year.value)
if(!(nYear % 4) && (nMonth > 2)) {
nSwitch = 1
}
var nDayOfWeek = cala_weekday(nMonth, nDay, nYear)
if(nSwitch) {
nDayOfWeek++
nSwitch = 0
}
day_display(form, nDayOfWeek)
}
function cala_weekday( x_nMonth, x_nDay, x_nYear) {
if(x_nMonth >= 3){
x_nMonth -= 2
}
else {
x_nMonth += 10
}
if( (x_nMonth == 11) || (x_nMonth == 12) ){
x_nYear--
}
var nCentNum = parseInt(x_nYear / 100)
var nDYearNum = x_nYear % 100
var nPart1 = parseInt(2.6 * x_nMonth - .2)
var nZeller = (parseInt(nPart1 + x_nDay + nDYearNum + (nDYearNum / 4) + (nCentNum / 4) - 2 * nCentNum)) % 7
if(nZeller < 0){
nZeller += 7
}
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