Примеры скриптов для клиента на языке JavaScript JavaScript

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 <SCRIPT LANGUAGE="JavaScript"> <!-- 
// Alex Alexandrov wrote: // This scrpt was taken from a book called "Learn Advanced 
Java Script" Chapter 14. // The guys who wrote that book wanted us to leave a 
copyright. So here it goes: // THIS SCRPIT IS COPYRIGHTED// // Be AWARE TO PUT 
IT ON YOUR PAGE// // Boolean variable specified if alert should be displayed if 
cookie exceeds 4KB var 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 arguments function 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 превышает 4KB и будет вырезан !")) document.cookie = curCookie 
} // name - name of the desired cookie // * return string containing value of 
specified cookie or null if cookie does not exist function 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 proceeds function 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" } } 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("Введите запись соответствующей 
данной дате:", 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 >= 12) { hour 
-= 12 ampm = "PM" } else ampm = "AM" hour = (hour == 0) ? 12 : 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(month, year) { // 
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] = "ЯНВАРЬ" ar[1] = "ФЕВРАЛЬ" ar[2] 
= "МАРТ" ar[3] = "АПРЕЛЬ" ar[4] = "МАЙ" ar[5] = "ИЮНЬ" ar[6] = "ИЮЛЬ" ar[7] = 
"АВГУСТ" ar[8] = "СЕНТЯБРЬ" ar[9] = "ОКТЯБРЬ" ar[10] = "НОЯБРЬ" ar[11] = "ДЕКАБРЬ" 
// 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(month, 
year) // call function to draw calendar drawCal(firstDay + 1, days, date, monthName, 
1900 + year) } function drawCal(firstDay, lastDate, date, monthName, year) { // 
constant table settings var headerHeight = 35 // height of the table's header 
cell var border = 0 // 3D height of table's border var cellspacing = 0 // width 
of table's border var headerColor = "00008b" // color of table's header var headerSize 
= "+2" // size of tables header font var colWidth = 45 // width of columns in 
table var dayCellHeight = 15 // height of cells containing days of the week var 
dayColor = "000000" // color of font representing week days var cellHeight = 25 
// height of cells representing dates in the calendar var todayColor = "red" // 
color specifying today's date in the calendar var timeColor = "purple" // color 
of font representing current time var dayCellcolor="87ceda" var monthColor="6485ed" 
// 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 + ' BGCOLOR='+ monthColor +'>' // 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 align=right WIDTH=' 
+ colWidth + ' HEIGHT=' + dayCellHeight + ' BGCOLOR='+ dayCellcolor +'>' openCol 
+= '<FONT SIZE=-1 COLOR="' + dayColor + '">' var closeCol = '</FONT></TD>' 
// create array of abbreviated day names var weekDay = new Array(7) weekDay[0] 
= "Вс" weekDay[1] = "Пн" weekDay[2] = "Вт" weekDay[3] = "Ср" weekDay[4] = "Чт" 
weekDay[5] = "Пт" weekDay[6] = "Сб" // 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 + ' BGCOLOR="#00FFFF">' text += '<FONT COLOR="' + todayColor + 
'">' text += '<A HREF="javascript:getInput(' + digit + ', \'' + monthName + 
'\')" onMouseOver="window.status = \'Записать или прочесть запись за ' + monthName 
+ ' ' + digit + '\'; return true"><FONT SIZE=-1 COLOR="' + todayColor + '">' 
+ digit + '</FONT></A>' text += '<BR>' text += '<FONT COLOR="' + timeColor 
+ '" SIZE=2>' text += '<CENTER>' + getTime() + '</CENTER>' text += '</FONT>' 
text += '</TD>' } else text += '<TD HEIGHT=' + cellHeight + ' BGCOLOR="#C0C0C0"><FONT 
SIZE=-1><A HREF="javascript:getInput(' + digit + ', \'' + monthName + '\')" 
onMouseOver="window.status = \'Записать или прочесть запись за ' + monthName + 
' ' + digit + '\'; return true">' + digit + '</A></FONT></TD>' digit++ 
} } text += '</TR>' } // close all basic table tags text += '</TABLE>' text 
+= '</CENTER>' // print accumulative HTML string document.write(text) } setCal() 
// --> 

Пределы Интегралы Вычисление двойного интеграла Изменить порядок интегрирования Объектно-ориентированное программирование Архитектура приложений баз данных Примеры скриптов Высшая математика