function moonphase(caldate, moonsize) {
var moondate = new Date(caldate);
moondate.setTime( moondate.getTime() + moondate.getTimezoneOffset() * 60000 );
var black = "/cas/images/black.gif";
var white = "/cas/images/white.gif";
var height=1;
var size = moonsize;
var i;
var bluemoon = new Date( 96, 1, 3, 16, 15, 0 );
var lunarperiod = 29 * ( 24 * 3600 * 1000 ) + 12 * ( 3600 * 1000 ) + 44.05 * ( 60 * 1000 );
var phasetime = ( moondate.getTime() - bluemoon.getTime() ) % lunarperiod;
// days to fullmoon
var fullmoon = Math.round( ( lunarperiod - phasetime ) / ( 24 * 3600 * 1000 ) );
var agemoon = phasetime / ( 24 * 3600 * 1000 );
var fraction = phasetime / lunarperiod;
var percent = Math.round( 200 * fraction ) % 100;
var left = Math.round(fraction * 100) / 100 >= 0.5 ? black : white;
var right = Math.round(fraction * 100) / 100 >= 0.5 ? white : black;
for ( i = -(size-1); i < size; ++i ) {
width = 2 * parseFloat( Math.sqrt( size * size - i * i ) ) / 100;
if( percent !== 100 )
document.write('
' );
if( percent !== 0 )
document.write( '
' );
document.write('
' );
}
//m = (fullmoon == 0 ? 'Full' : (Math.round(15 - agemoon) == 0 ? 'New' : ' '));
}
function drawcalendar() {
// SET ARRAYS
var day_of_week = new Array('Sun','Mon','Tue','Wed','Thu','Fri','Sat');
var month_of_year = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
// DECLARE AND INITIALIZE VARIABLES
var Calendar = new Date();
var year = Calendar.getYear(); // Returns year
var month = Calendar.getMonth(); // Returns month (0-11)
var today = Calendar.getDate(); // Returns day (1-31)
var weekday = Calendar.getDay(); // Returns day (0-7)
var firstday;
var DAYS_OF_WEEK = 7; // "constant" for number of days in a week
var DAYS_OF_MONTH = 42; // "constant" for number of days in a month
var cal; // Used for printing
year = year % 100;
year += (year < 38) ? 2000 : 1900;
var TR_start = '';
var TR_end = '
\n';
var TD_start = '';
var TD_end = ' | ';
document.write('' + TR_start);
document.write('| ');
document.write(month_of_year[month] + ' ' + year + ' | ' + TR_end);
document.write(TR_start);
// LOOPS FOR EACH DAY OF WEEK
for(index=0; index < DAYS_OF_WEEK; index++)
document.write( TD_start + day_of_week[index] + TD_end);
document.write(TR_end + TR_start);
Calendar.setDate(1); // Start the calendar day at '1'
firstday = Calendar.getDay();
// Reset to first column
Calendar.setDate(Calendar.getDate() - firstday);
// FILL IN small moons UNTIL TODAY'S DAY
for (index=0; index < firstday; index++) {
document.write( TD_start + Calendar.getDate() + '
');
moonphase(Calendar, 23);
document.write(TD_end);
Calendar.setDate(Calendar.getDate()+1);
}
Calendar.setDate(1); // Start the calendar day at '1'
Calendar.setMonth(month); // Start the calendar month at now
// LOOPS FOR EACH DAY IN CALENDAR
index = 0;
while (index < DAYS_OF_MONTH - firstday) {
if( Calendar.getDate() > index ) {
// RETURNS THE NEXT DAY TO PRINT
weekday =Calendar.getDay();
// START NEW ROW FOR FIRST DAY OF WEEK
if(weekday == 0)
document.write(TR_start);
if(weekday != DAYS_OF_WEEK) {
var day = Calendar.getDate();
document.write( TD_start + Calendar.getDate() + '
');
moonphase(Calendar, 31);
document.write(TD_end);
}
// END ROW FOR LAST DAY OF WEEK
if(weekday == DAYS_OF_WEEK)
document.write(TR_end);
} else {
if(Calendar.getDay() == 0) {
index = DAYS_OF_MONTH - firstday;
} else {
document.write( TD_start + Calendar.getDate() + '
');
moonphase(Calendar, 23);
document.write(TD_end);
}
}
index++;
Calendar.setDate(Calendar.getDate()+1);
}// end for loop
document.write('
');
}