ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Javascript: A simple calendar with today's date highlighted.

Updated on September 11, 2012

Introduction

This is just a simple monthly (current month) calendar built with javascript. You can modify the formatting and html display properties of it. It's just the current month displayed with today's date highlighted. Nothing fancy, just a basic calendar that you could place on any web page.

I've added a little CSS to format the text between the <td> tags of the calendar.


CSS

Place the following css between the <head></head> tags of your web page. You can modify them as needed. Ths CSS formats the numeric portion and monthly header name.

<style type="text/css">
.tdoutput {font: normal 10px "arial", "sans-serif"; color: black;}
.tdheader {font: normal 12px "arial", "sans-serif"; color: black;}
</style> 

Javascript to display the calendar

Below is the javascript to display the simple monthly calendar with today's date highlighted. Place the javascript any where on your web page.

<script language="javascript" type="text/javascript">
<!-- Begin
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');
var Calendar = new Date();
var year = Calendar.getFullYear();      // 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

var TR_start = '<tr>';
var TR_end = '</tr>';
var highlight_start = '<td width="30"><table style="border: 1px solid" bordercolor=999999 cellspacing=0 bgcolor=yellow><tr><td width=20><B><center>';
var highlight_end   = '</center></td></tr></table></B>';
var TD_start = '<td width="30" class=tdoutput><center>';
var TD_end = '</center></td>';

cal =  '<table style="border: 1px solid" cellspacing=0 cellpadding=0 bordercolor=999999><TR><TD class=tdoutput>';
cal += '<table border=0 cellspacing=0 cellpadding=2>' + TR_start;
cal += '<td colspan="' + DAYS_OF_WEEK + '" bgcolor="#EFEFEF" class="tdheader"><CENTER><B>';
cal += month_of_year[month]  + '   ' + year + '</B>' + TD_end + TR_end;
cal += TR_start;

// do not modify the code below
// loops for each day of week
for(index=0; index < DAYS_OF_WEEK; index++)
{

// highlight today day fof 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 the blank gaps until today's day
for(index=0; index < Calendar.getDay(); index++)
cal += TD_start + '  ' + TD_end;

// loops for each day in the calendar
for(index=0; index < DAYS_OF_MONTH; index++)
{
if( Calendar.getDate() > index )
{
  // returns the next day to print
  week_day =Calendar.getDay();

  // start the next new row for the first day of the week
  if(week_day == 0)
  cal += TR_start;

  if(week_day != DAYS_OF_WEEK)
  {

  // set the variable which is inside the loop for incrementing
  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 the week
  if(week_day == DAYS_OF_WEEK)
  cal += TR_end;
  }

  // increments until the end of the month
  Calendar.setDate(Calendar.getDate()+1);

}// end for loop

cal += '</td></tr></table></table>';

//  print calendar
document.write(cal);

//  End -->
</script>

Summary

Another way that javascript can add a little something to your web page.

Comments

Submit a Comment

No comments yet.

working

This website uses cookies

As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

Show Details
Necessary
HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
LoginThis is necessary to sign in to the HubPages Service.
Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
AkismetThis is used to detect comment spam. (Privacy Policy)
HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
Features
Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
MavenThis supports the Maven widget and search functionality. (Privacy Policy)
Marketing
Google AdSenseThis is an ad network. (Privacy Policy)
Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
Index ExchangeThis is an ad network. (Privacy Policy)
SovrnThis is an ad network. (Privacy Policy)
Facebook AdsThis is an ad network. (Privacy Policy)
Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
AppNexusThis is an ad network. (Privacy Policy)
OpenxThis is an ad network. (Privacy Policy)
Rubicon ProjectThis is an ad network. (Privacy Policy)
TripleLiftThis is an ad network. (Privacy Policy)
Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
Statistics
Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)