Javascript, calendar source code - Stack Overflow|Programmer puzzle solving

I am actually using this calendar source code, but I did encountered a problem which is, I wasn't able to display today's date and instead, I got back 'November ??110' What's wrong?!

Below are the codes...

//  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 (1-31)

var DAYS_OF_WEEK = 7;    // "constant" for number of days in a week
var DAYS_OF_MONTH = 31;    // "constant" for number of days in a month
var cal;    // Used for printing

Calendar.setDate(1);    // Start the calendar day at '1'
Calendar.setMonth(month);    // Start the calendar month at now


/* VARIABLES FOR FORMATTING
NOTE: You can format the 'BORDER', 'BGCOLOR', 'CELLPADDING', 'BORDERCOLOR'
      tags to customize your caledanr's look. */

var TR_start = '<TR>';
var TR_end = '</TR>';
var highlight_start = '<TD WIDTH="30"><TABLE CELLSPACING=0 BORDER=1 BGCOLOR=DEDEFF BORDERCOLOR=CCCCCC><TR><TD WIDTH=20><B><CENTER>';
var highlight_end   = '</CENTER></TD></TR></TABLE></B>';
var TD_start = '<TD WIDTH="30"><CENTER>';
var TD_end = '</CENTER></TD>';

/* BEGIN CODE FOR CALENDAR
NOTE: You can format the 'BORDER', 'BGCOLOR', 'CELLPADDING', 'BORDERCOLOR'
tags to customize your calendar's look.*/

cal =  '<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=0 BORDERCOLOR=BBBBBB><TR><TD>';
cal += '<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=2>' + TR_start;
cal += '<TD COLSPAN="' + DAYS_OF_WEEK + '" BGCOLOR="#EFEFEF"><CENTER><B>';
cal += month_of_year[month]  + ' ??' + year + '</B>' + TD_end + TR_end;
cal += TR_start;

//   DO NOT EDIT BELOW THIS POINT  //

// LOOPS FOR EACH DAY OF WEEK
for(index=0; index < DAYS_OF_WEEK; index++)
{

// BOLD TODAY'S DAY OF WEEK
if(weekday == index)
cal += TD_start + '<B>' + day_of_week[index] + '</B>' + TD_end;

// PRINTS DAY
else
cal += TD_start + day_of_week[index] + TD_end;
}

cal += TD_end + TR_end;
cal += TR_start;

// FILL IN BLANK GAPS UNTIL TODAY'S DAY
for(index=0; index < Calendar.getDay(); index++)
cal += TD_start + '' + TD_end;

// LOOPS FOR EACH DAY IN CALENDAR
for(index=0; index < DAYS_OF_MONTH; index++)
{
if( Calendar.getDate() > index )
{
  // RETURNS THE NEXT DAY TO PRINT
  week_day =Calendar.getDay();

  // START NEW ROW FOR FIRST DAY OF WEEK
  if(week_day == 0)
  cal += TR_start;

  if(week_day != DAYS_OF_WEEK)
  {

  // SET VARIABLE INSIDE LOOP FOR INCREMENTING PURPOSES
  var day  = Calendar.getDate();

  // HIGHLIGHT TODAY'S DATE
  if( today==Calendar.getDate() )
  cal += highlight_start + day + highlight_end + TD_end;

  // PRINTS DAY
  else
  cal += TD_start + day + TD_end;
  }

  // END ROW FOR LAST DAY OF WEEK
  if(week_day == DAYS_OF_WEEK)
  cal += TR_end;
  }

  // INCREMENTS UNTIL END OF THE MONTH
  Calendar.setDate(Calendar.getDate()+1);

}// end for loop

cal += '</TD></TR></TABLE></TABLE>';

//  PRINT CALENDAR
document.write(cal);

//  End -->

I am actually using this calendar source code, but I did encountered a problem which is, I wasn't able to display today's date and instead, I got back 'November ??110' What's wrong?!

Below are the codes...

//  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 (1-31)

var DAYS_OF_WEEK = 7;    // "constant" for number of days in a week
var DAYS_OF_MONTH = 31;    // "constant" for number of days in a month
var cal;    // Used for printing

Calendar.setDate(1);    // Start the calendar day at '1'
Calendar.setMonth(month);    // Start the calendar month at now


/* VARIABLES FOR FORMATTING
NOTE: You can format the 'BORDER', 'BGCOLOR', 'CELLPADDING', 'BORDERCOLOR'
      tags to customize your caledanr's look. */

var TR_start = '<TR>';
var TR_end = '</TR>';
var highlight_start = '<TD WIDTH="30"><TABLE CELLSPACING=0 BORDER=1 BGCOLOR=DEDEFF BORDERCOLOR=CCCCCC><TR><TD WIDTH=20><B><CENTER>';
var highlight_end   = '</CENTER></TD></TR></TABLE></B>';
var TD_start = '<TD WIDTH="30"><CENTER>';
var TD_end = '</CENTER></TD>';

/* BEGIN CODE FOR CALENDAR
NOTE: You can format the 'BORDER', 'BGCOLOR', 'CELLPADDING', 'BORDERCOLOR'
tags to customize your calendar's look.*/

cal =  '<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=0 BORDERCOLOR=BBBBBB><TR><TD>';
cal += '<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=2>' + TR_start;
cal += '<TD COLSPAN="' + DAYS_OF_WEEK + '" BGCOLOR="#EFEFEF"><CENTER><B>';
cal += month_of_year[month]  + ' ??' + year + '</B>' + TD_end + TR_end;
cal += TR_start;

//   DO NOT EDIT BELOW THIS POINT  //

// LOOPS FOR EACH DAY OF WEEK
for(index=0; index < DAYS_OF_WEEK; index++)
{

// BOLD TODAY'S DAY OF WEEK
if(weekday == index)
cal += TD_start + '<B>' + day_of_week[index] + '</B>' + TD_end;

// PRINTS DAY
else
cal += TD_start + day_of_week[index] + TD_end;
}

cal += TD_end + TR_end;
cal += TR_start;

// FILL IN BLANK GAPS UNTIL TODAY'S DAY
for(index=0; index < Calendar.getDay(); index++)
cal += TD_start + '' + TD_end;

// LOOPS FOR EACH DAY IN CALENDAR
for(index=0; index < DAYS_OF_MONTH; index++)
{
if( Calendar.getDate() > index )
{
  // RETURNS THE NEXT DAY TO PRINT
  week_day =Calendar.getDay();

  // START NEW ROW FOR FIRST DAY OF WEEK
  if(week_day == 0)
  cal += TR_start;

  if(week_day != DAYS_OF_WEEK)
  {

  // SET VARIABLE INSIDE LOOP FOR INCREMENTING PURPOSES
  var day  = Calendar.getDate();

  // HIGHLIGHT TODAY'S DATE
  if( today==Calendar.getDate() )
  cal += highlight_start + day + highlight_end + TD_end;

  // PRINTS DAY
  else
  cal += TD_start + day + TD_end;
  }

  // END ROW FOR LAST DAY OF WEEK
  if(week_day == DAYS_OF_WEEK)
  cal += TR_end;
  }

  // INCREMENTS UNTIL END OF THE MONTH
  Calendar.setDate(Calendar.getDate()+1);

}// end for loop

cal += '</TD></TR></TABLE></TABLE>';

//  PRINT CALENDAR
document.write(cal);

//  End -->

Share Improve this question edited Nov 20, 2010 at 7:38 aaronasterling 71.2k20 gold badges131 silver badges127 bronze badges asked Nov 20, 2010 at 7:30 KennC. 3,4556 gold badges22 silver badges18 bronze badges

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1 Answer 1

Sorted by: Reset to default 5

The Date.getYear method is deprecated because of Y2K reasons and behaves differently in Firefox (e.g. 110) and Internet Explorer (e.g. 2010) for dates after 1999. Use Date.getFullYear() instead, which will always return a four-digit year.

To get rid of the question marks, just remove the question marks in this line:

cal += month_of_year[month]  + ' ??' + year + '</B>' + TD_end + TR_end;

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Javascript, calendar source code - Stack Overflow

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