var id = "";
var month = "";
var year = "";
var curmonth = "";
var curyear = "";
function leapYear(year) {
if (year % 4 == 0) {
return true;
}
return false;
}
function getDays(month, year) {
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 ar[month];
}
function getMonthName(month) {
var ar = new Array(12);
ar[0] = "Januar";
ar[1] = "Februar";
ar[2] = "Marts";
ar[3] = "April";
ar[4] = "Maj";
ar[5] = "Juni";
ar[6] = "Juli";
ar[7] = "August";
ar[8] = "September";
ar[9] = "Oktober";
ar[10] = "November";
ar[11] = "December";
return ar[month];
}
function setCal(form_id, get_month, get_year) {
// standard time attributes
id = form_id;
month = get_month;
year = get_year;
var now = new Date();
if (month == undefined) {
var month = now.getMonth();
var curmonth = now.getMonth();
}
if (year == undefined) {
var year = now.getFullYear();
var curyear = now.getFullYear();
}
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, year);
}
function drawCal(firstDay, lastDate, date, monthName, year) {
// constant table settings
//var headerHeight = 50 // height of the table's header cell
var border = 0; // 3D height of table's border
var cellspacing = 2; // width of table's border
var headerColor = "midnightblue"; // color of table's header
var colWidth = 20; // width of columns in table
var dayCellHeight = 18; // height of cells containing days of the week
var dayColor = "darkblue"; // color of font representing week days
var cellHeight = 18; // height of cells representing dates in the calendar
var todayColor = "#CCCCCC"; // color specifying today's date in the calendar
var otherColor = "#EEEEEE"; // color specifying not today's date in the calendar
var timeColor = "purple"; // color of font representing current time
var now = new Date();
var curMonthName = getMonthName(now.getMonth());
if (month == '' && month.length == 0) {
month = now.getMonth();
}
if (year == '') {
year = now.getYear();
}
now = null;
var colorswitch = "";
var nextYear = year;
var prevYear = year;
var nextMonth = month+1;
if (month == 11) {
nextMonth = 0;
nextYear = year+1
}
var prevMonth = month-1
if (month == 0) {
prevMonth = 11;
prevYear = year-1;
}
// create basic table structure
var text = ""; // initialize accumulative variable to empty string
text += ''; // table settings
text += '| << | '; // create table header cell
text += ''; // set font for table header
text += monthName + ' ' + year;
text += ' | >> '; // close table header's font settings
text += ' |
'; // close header cell
// variables to hold constant settings
var openCol = '';
openCol += '';
var closeCol = ' | ';
// create array of abbreviated day names
var weekDay = new Array(7);
weekDay[0] = "S";
weekDay[1] = "M";
weekDay[2] = "T";
weekDay[3] = "O";
weekDay[4] = "T";
weekDay[5] = "F";
weekDay[6] = "L";
// create first row of table to set column width and specify week day
text += '';
for (var dayNum = 0; dayNum < 7; ++dayNum) {
text += openCol + weekDay[dayNum] + closeCol;
}
text += '
';
// declaration and initialization of two variables to help with tables
var dayOfMonth = 1;
var curCell = 1;
for (var row = 1; row <= Math.ceil((lastDate + firstDay - 1) / 7); ++row) {
text += '';
for (var col = 1; col <= 7; ++col) {
if ((curCell < firstDay) || (dayOfMonth > lastDate)) {
text += '| | ';
curCell++
} else {
if (dayOfMonth == date) { // current cell represents today's date
colorswitch = todayColor;
} else {
colorswitch = otherColor;
}
text += '' + ' | ';
dayOfMonth++;
}
}
text += '
';
}
// close all basic table tags
text += '| Luk |
';
// print accumulative HTML string
calWin = window.open("","cal","toolbars=0, scrollbars=0, location=0, statusbars=0, menubars=0, resizable=0, width=175, height=170");
calWin.document.open();
calWin.document.write(text);
calWin.document.close();
}