s0007.htm

JavaScript源代码全集

	
}

function leapYear(year) {
	if (year % 4 == 0) // basic rule
		return true // is leap year
	return false // is not leap year
}

function getDays(year,month) {
	// create array to hold number of days in each month
	var ar = new Array(12)
	ar[0] = 31 // January
	ar[1] = (leapYear(year)) ? 29 : 28 // February
	ar[2] = 31 // March
	ar[3] = 30 // April
	ar[4] = 31 // May
	ar[5] = 30 // June
	ar[6] = 31 // July
	ar[7] = 31 // August
	ar[8] = 30 // September
	ar[9] = 31 // October
	ar[10] = 30 // November
	ar[11] = 31 // December

	// return number of days in the specified month (parameter)
	return ar[month]
}

function getMonthName(month) {
	// create array to hold name of each month
	var ar = new Array(12)
	ar[0] = "一月"
	ar[1] = "二月"
	ar[2] = "三月"
	ar[3] = "四月"
	ar[4] = "五月"
	ar[5] = "六月"
	ar[6] = "七月"
	ar[7] = "八月"
	ar[8] = "九月"
	ar[9] = "十月"
	ar[10] = "十一月"
	ar[11] = "十二月"

	// return name of specified month (parameter)
	return ar[month]
}

function setCal() {
	// standard time attributes
	var now = new Date()
	var year = now.getYear()
	var month = now.getMonth()
	var monthName = getMonthName(month)
	var date = now.getDate()
	now = null

	// create instance of first day of month, and extract the day on which it occurs
	var firstDayInstance = new Date(year, month, 1)
	var firstDay = firstDayInstance.getDay()
	firstDayInstance = null

	// number of days in current month
	var days = getDays(year,month)

	// call function to draw calendar
	drawCal(firstDay + 1, days, date, 00 + year, monthName)
}

function drawCal(firstDay, lastDate, date, year, monthName) {
	// constant table settings
var headerHeight = 20 // height of the table's header cell
	var border = 1 // 3D height of table's border
	var cellspacing = 2 // width of table's border
	var headerColor = "#82003C" // color of table's header
	var headerSize = "+1" // size of tables header font
	var colWidth = 80 // width of columns in table
	var dayCellHeight = 30 // height of cells containing days of the week
	var dayColor = "darkblue" // color of font representing week days
	var cellHeight = 40 // height of cells representing dates in the calendar
var todayColor = "red" // color specifying today's date in the calendar
var timeColor = "#007878" // color of font representing current time

	// create basic table structure
	var text = "" // initialize accumulative variable to empty string
	text += '<CENTER>'
	text += '<TABLE BORDER=' + border + ' CELLSPACING=' + cellspacing + '>' // table settings
	text += 	'<TH COLSPAN=7 HEIGHT=' + headerHeight + '>' // create table header cell
	text += 		'<FONT COLOR="' + headerColor + '" SIZE=' + headerSize + '>' // set font for table header
	text += 			monthName + ' ' + year 
	text += 		'</FONT>' // close table header's font settings
	text += 	'</TH>' // close header cell

	// variables to hold constant settings
	var openCol = '<TD WIDTH=' + colWidth + ' HEIGHT=' + dayCellHeight + '>'
	openCol += '<FONT COLOR="' + dayColor + '"SIZE=2>'
	var closeCol = '</FONT></TD>'

	// create array of abbreviated day names
	var weekDay = new Array(7)
	weekDay[0] = "星期日"
	weekDay[1] = "星期一"
	weekDay[2] = "星期二"
	weekDay[3] = "星期三"
	weekDay[4] = "星期四"
	weekDay[5] = "星期五"
	weekDay[6] = "星期六"
	
	// create first row of table to set column width and specify week day
	text += '<TR ALIGN="center" VALIGN="center">'
	for (var dayNum = 0; dayNum < 7; ++dayNum) {
		text += openCol + weekDay[dayNum] + closeCol 
	}
	text += '</TR>'
	
	// declaration and initialization of two variables to help with tables
	var digit = 1
	var curCell = 1
	
	for (var row = 1; row <= Math.ceil((lastDate + firstDay - 1) / 7); ++row) {
		text += '<TR ALIGN="right" VALIGN="top">'
		for (var col = 1; col <= 7; ++col) {
			if (digit > lastDate)
				break
			if (curCell < firstDay) {
				text += '<TD></TD>';
				curCell++
			} else {
				if (digit == date) { // current cell represent today's date
					text += '<TD HEIGHT=' + cellHeight + '>'
					text += '<FONT COLOR="' + todayColor + '"SIZE=5>'
					text += '<A HREF="javascript:getInput(' + digit + ', \'' + monthName + '\')" onMouseOver="window.status = \'Store or retrieve data for ' + monthName + ' ' + digit + '\'; return true"><FONT COLOR="' + todayColor + '">' + digit + '</FONT></A>'
					text += '<BR>'
					text += '<FONT COLOR="' + timeColor + '" SIZE=3>'
					text += '<CENTER>' + getTime() + '</CENTER>'
					text += '</FONT>'
					text += '</TD>'
				} else
					text += '<TD HEIGHT=' + cellHeight + '><A HREF="javascript:getInput(' + digit + ', \'' + monthName + '\')" onMouseOver="window.status = \'Store or retrieve data for ' + monthName + ' ' + digit + '\'; return true">' + digit + '</A></TD>'
				digit++
			}
		}
		text += '</TR>'
	}
	
	// close all basic table tags
	text += '</TABLE>'
	text += '</CENTER>'

	// print accumulative HTML string
	document.write(text) 
}

setCal()

// -->
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          <p><textarea rows="10" name="S1" cols="40" onMouseOver="this.focus()" onFocus="this.select()">&lt;script LANGUAGE=&quot;JavaScript&quot;&gt;
<!--//// Cookie functions to store and retrieve cookies//// Boolean variable specified if alert should be displayed if cookie exceeds 4KBvar caution = false// name - name of the cookie// value - value of the cookie// [expires] - expiration date of the cookie (defaults to end of current session)// [path] - path for which the cookie is valid (defaults to path of calling document)// [domain] - domain for which the cookie is valid (defaults to domain of calling document)// [secure] - Boolean value indicating if the cookie transmission requires a secure transmission// * an argument defaults when it is assigned null as a placeholder// * a null placeholder is not required for trailing omitted argumentsfunction setCookie(name, value, expires, path, domain, secure) {	var curCookie = name + "=" + escape(value) +		((expires) ? "; expires=" + expires.toGMTString() : "") +		((path) ? "; path=" + path : "") +		((domain) ? "; domain=" + domain : "") +		((secure) ? "; secure" : "")	if (!caution || (name + "=" + escape(value)).length <= 4000)		document.cookie = curCookie	else		if (confirm("Cookie exceeds 4KB and will be cut!"))			document.cookie = curCookie}// name - name of the desired cookie// * return string containing value of specified cookie or null if cookie does not existfunction getCookie(name) {	var prefix = name + "="	var cookieStartIndex = document.cookie.indexOf(prefix)	if (cookieStartIndex == -1)		return null	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)	if (cookieEndIndex == -1)		cookieEndIndex = document.cookie.length	return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))}// name - name of the cookie// [path] - path of the cookie (must be same as path used to create cookie)// [domain] - domain of the cookie (must be same as domain used to create cookie)// * path and domain default if assigned null or omitted if no explicit argument proceedsfunction deleteCookie(name, path, domain) {	if (getCookie(name)) {		document.cookie = name + "=" + 		((path) ? "; path=" + path : "") +		((domain) ? "; domain=" + domain : "") +		"; expires=Thu, 01-Jan-70 00:00:01 GMT"	}}// date - any instance of the Date object// * you should hand all instances of the Date object to this function for "repairs"// * this function is taken from Chapter 14, "Time and Date in JavaScript", in "Learn Advanced JavaScript Programming"function fixDate(date) {	var base = new Date(0)	var skew = base.getTime()	if (skew > 0)		date.setTime(date.getTime() - skew)}function initCookie(monthName) {	// initializes cookie with the following format:	// ^1^^2^^3^^4^...^30^^31^	// initialize accumulative variable	var text = ""	for (var i = 1; i <= 31; ++i) {		text += "^" + i + "^"	}	var now = new Date()	fixDate(now)	// set time to one month (31 days) in the future	now.setTime(now.getTime() + 1000 * 60 * 60 * 24 * 31)	setCookie(monthName + "Calendar", text, now)}function getSpecificReminder(num, monthName) {	var prefix = "^" + num + "^"	var totalCookie = getCookie(monthName + "Calendar")	var startIndex = totalCookie.indexOf(prefix, 0)	var startData = totalCookie.indexOf("^", startIndex + 1) + 1	if (num == 31)		var endData = totalCookie.length	else		var endData = totalCookie.indexOf("^", startData)		return totalCookie.substring(startData, endData)}function setSpecificReminder(num, monthName, newValue) {	var prefix = "^" + num + "^"	var totalCookie = getCookie(monthName + "Calendar")	var startIndex = totalCookie.indexOf(prefix, 0)	var startData = totalCookie.indexOf("^", startIndex + 1) + 1		if (num == 31)		var endData = totalCookie.length	else		var endData = totalCookie.indexOf("^", startData)	var now = new Date()	fixDate(now)	// set time to one month (31 days) in the future	now.setTime(now.getTime() + 1000 * 60 * 60 * 24 * 31)	setCookie(monthName + "Calendar", totalCookie.substring(0, startData) + newValue + totalCookie.substring(endData, totalCookie.length), now)}function getInput(num, monthName) {	if (!getCookie(monthName + "Calendar")) 		initCookie(monthName)	var newValue = prompt("请输入备忘录内容：", getSpecificReminder(num, monthName))	if (newValue) // user did not cancel		setSpecificReminder(num, monthName, newValue)}function getTime() {	// initialize time-related variables with current time settings	var now = new Date()	var hour = now.getHours()	var minute = now.getMinutes()	now = null var ampm = ""	// validate hour values	and set value of ampm	if (hour >= 24) {		hour -= 24		} else			hour = (hour == 0) ? 24 : hour// add zero digit to a one digit minute	if (minute < 10)		minute = "0" + minute // do not parse this number!	// return time string	return hour + ":" + minute + " " + ampm	}function leapYear(year) {	if (year % 4 == 0) // basic rule		return true // is leap year	return false // is not leap year}function getDays(year,month) {	// create array to hold number of days in each month	var ar = new Array(12)	ar[0] = 31 // January	ar[1] = (leapYear(year)) ? 29 : 28 // February	ar[2] = 31 // March	ar[3] = 30 // April	ar[4] = 31 // May	ar[5] = 30 // June	ar[6] = 31 // July	ar[7] = 31 // August	ar[8] = 30 // September	ar[9] = 31 // October	ar[10] = 30 // November	ar[11] = 31 // December	// return number of days in the specified month (parameter)	return ar[month]}function getMonthName(month) {	// create array to hold name of each month	var ar = new Array(12)	ar[0] = "一月"	ar[1] = "二月"	ar[2] = "三月"	ar[3] = "四月"	ar[4] = "五月"	ar[5] = "六月"	ar[6] = "七月"	ar[7] = "八月"	ar[8] = "九月"	ar[9] = "十月"	ar[10] = "十一月"	ar[11] = "十二月"	// return name of specified month (parameter)	return ar[month]}function setCal() {	// standard time attributes	var now = new Date()	var year = now.getYear()	var month = now.getMonth()	var monthName = getMonthName(month)	var date = now.getDate()	now = null	// create instance of first day of month, and extract the day on which it occurs	var firstDayInstance = new Date(year, month, 1)	var firstDay = firstDayInstance.getDay()	firstDayInstance = null	// number of days in current month	var days = getDays(year,month)	// call function to draw calendar	drawCal(firstDay + 1, days, date, 00 + year, monthName)}function drawCal(firstDay, lastDate, date, year, monthName) {	// constant table settingsvar headerHeight = 20 // height of the table's header cell	var border = 1 // 3D height of table's border	var cellspacing = 2 // width of table's border	var headerColor = "#82003C" // color of table's header	var headerSize = "+1" // size of tables header font	var colWidth = 80 // width of columns in table	var dayCellHeight = 30 // height of cells containing days of the week	var dayColor = "darkblue" // color of font representing week days	var cellHeight = 40 // height of cells representing dates in the calendarvar todayColor = "red" // color specifying today's date in the calendarvar timeColor = "#007878" // color of font representing current time	// create basic table structure	var text = "" // initialize accumulative variable to empty string	text += '<CENTER>'	text += '<TABLE BORDER=' + border + ' CELLSPACING=' + cellspacing + '>' // table settings	text += 	'<TH COLSPAN=7 HEIGHT=' + headerHeight + '>' // create table header cell	text += 		'<FONT COLOR="' + headerColor + '" SIZE=' + headerSize + '>' // set font for table header	text += 			monthName + ' ' + year 	text += 		'</FONT>' // close table header's font settings	text += 	'</TH>' // close header cell	// variables to hold constant settings	var openCol = '<TD WIDTH=' + colWidth + ' HEIGHT=' + dayCellHeight + '>'	openCol += '<FONT COLOR="' + dayColor + '"SIZE=2>'	var closeCol = '</FONT></TD>'	// create array of abbreviated day names	var weekDay = new Array(7)	weekDay[0] = "星期日"	weekDay[1] = "星期一"	weekDay[2] = "星期二"	weekDay[3] = "星期三"	weekDay[4] = "星期四"	weekDay[5] = "星期五"	weekDay[6] = "星期六"		// create first row of table to set column width and specify week day	text += '<TR ALIGN="center" VALIGN="center">'	for (var dayNum = 0; dayNum < 7; ++dayNum) {		text += openCol + weekDay[dayNum] + closeCol 	}	text += '</TR>'		// declaration and initialization of two variables to help with tables	var digit = 1	var curCell = 1		for (var row = 1; row <= Math.ceil((lastDate + firstDay - 1) / 7); ++row) {		text += '<TR ALIGN="right" VALIGN="top">'		for (var col = 1; col <= 7; ++col) {			if (digit > lastDate)				break			if (curCell < firstDay) {				text += '<TD></TD>';				curCell++			} else {				if (digit == date) { // current cell represent today's date					text += '<TD HEIGHT=' + cellHeight + '>'					text += '<FONT COLOR="' + todayColor + '"SIZE=5>'					text += '<A HREF="javascript:getInput(' + digit + ', \'' + monthName + '\')" onMouseOver="window.status = \'Store or retrieve data for ' + monthName + ' ' + digit + '\'; return true"><FONT COLOR="' + todayColor + '">' + digit + '</FONT></A>'					text += '<BR>'					text += '<FONT COLOR="' + timeColor + '" SIZE=3>'					text += '<CENTER>' + getTime() + '</CENTER>'					text += '</FONT>'					text += '</TD>'				} else					text += '<TD HEIGHT=' + cellHeight + '><A HREF="javascript:getInput(' + digit + ', \'' + monthName + '\')" onMouseOver="window.status = \'Store or retrieve data for ' + monthName + ' ' + digit + '\'; return true">' + digit + '</A></TD>'				digit++			}		}		text += '</TR>'	}		// close all basic table tags	text += '</TABLE>'	text += '</CENTER>'	// print accumulative HTML string	document.write(text) }setCal()// -->
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