//
// support for pop-up calendar window
//
// 1998-11-23 Brian Ellis, FastLane Communications, Inc.
//
// $Id: calendar.js,v 1.1.1.1 2001/09/09 20:44:41 bill Exp $
//
//
// calendar() - called when user presses the calendar icon next to a date
//
function calendar(which) {
cal = open("", "calendar", "height=220,width=280,scrollbars=yes,resizable=yes");
objname = which;
// get current values
eval("curday = document.forms[0]." + objname + "_day.value");
eval("curmonth = document.forms[0]." + objname + "_month.value");
eval("curyear = document.forms[0]." + objname + "_year.value");
// trim leading zeros so the numbers aren't seen as octal
while (curday.charAt(0) == "0") curday = curday.substr(1);
while (curmonth.charAt(0) == "0") curmonth = curmonth.substr(1);
while (curyear.charAt(0) == "0") curyear = curyear.substr(1);
// turn strings into ints
curday = parseInt(curday);
curmonth = parseInt(curmonth);
curyear = parseInt(curyear);
// handle blank/non-integer inputs
if (isNaN(curday) || isNaN(curmonth) || isNaN(curyear)) {
curday = 0;
curmonth = 0;
curyear = 0;
}
// if any part is zero, use today
if ((curday == 0) || (curmonth == 0) || (curyear == 0)) {
var today = new Date();
curday = today.getDate();
curmonth = today.getMonth() + 1;
curyear = today.getYear();
if (curyear < 1900)
curyear += 1900;
}
initialday = curday;
initialmonth = curmonth;
initialyear = curyear;
cal_make();
}
//
// cal_back() - called when user goes back in time
//
function cal_back(months) {
curmonth -= months;
while (curmonth < 1) {
--curyear;
curmonth += 12;
}
cal_make();
}
//
// call_forw() - called when user goes forward in time
//
function cal_forw(months) {
curmonth -= -months; // not "+= months" because of int/string bs.
while (curmonth > 12) {
++curyear;
curmonth -= 12;
}
cal_make();
}
//
// cal_choose() - called when user presses on a date in the calendar
//
function cal_choose(day) {
var daystr, monthstr;
if (day < 10) {
daystr = "0" + day;
} else {
daystr = "" + day;
}
if (curmonth < 10) {
monthstr = "0" + curmonth;
} else {
monthstr = "" + curmonth;
}
eval("document.forms[0]." + objname + "_day.value=\"" + daystr + "\"");
eval("document.forms[0]." + objname + "_month.value=\"" + monthstr + "\"");
eval("document.forms[0]." + objname + "_year.value=\"" + curyear + "\"");
cal.close();
}
//
// mkcal() - fill in the calendar window
//
function cal_make() {
var target, startdow, dow, d;
//
// what day of the week (dow) does this month start on?
// Sunday = 1, Saturday = 7
//
target = new Date(curyear, curmonth-1, 1);
startdow = target.getDay() + 1;
//
// header
//
cal.document.writeln("Calendar");
cal.document.writeln("");
cal.document.writeln("<< ");
cal.document.writeln("<");
cal.document.writeln(monthnames[curmonth-1] + " - " + curyear);
cal.document.writeln(">");
cal.document.writeln(" >>");
cal.document.writeln("
");
cal.document.writeln("");
cal.document.writeln("| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|
");
//
// space over to the correct column for day 1 in this month
//
dow = 1;
cal.document.writeln("");
while (startdow > dow) {
cal.document.writeln(" | ");
++dow;
}
//
// adjust daysinmonths[] for leap year
//
if (((curyear % 4) == 0) && (((curyear % 100) != 0) || ((curyear % 400) == 0))) {
daysinmonths[1] = 29;
} else {
daysinmonths[1] = 28;
}
//
// output all of the days in the month
//
for (d=1; d<=daysinmonths[curmonth-1]; ++d) {
if ((d == initialday) && (curmonth == initialmonth) && (curyear == initialyear)) {
cal.document.writeln("" + d + " | ");
} else {
cal.document.writeln("" + d + " | ");
}
++dow;
if (dow > 7) {
cal.document.writeln("
");
dow = 1;
}
}
//
// consume the remainder of the last row
//
while (dow <= 7) {
cal.document.writeln(" | ");
++dow;
}
cal.document.writeln("
");
//
// footer
//
cal.document.writeln("
");
cal.document.close();
}
//
// perform one-time initialization now
//
daysinmonths = new Array(31,28,31,30,31,30,31,31,30,31,30,31);
monthnames = new Array("January","February","March","April","May","June","July","August","September","October","November","December");