Count Down Clock #1:

Code:

Place in the <HEAD>:

var the_year = 1938
var birthday = new Date("May 26, "+the_year+" 00:00:00");

// Variables to display today's date.
var now = new Date();
var yr = now.getYear();
var mName = now.getMonth();
var dName = now.getDay();

var dayNr = ((now.getDate()<10) ? "0" : "")+ now.getDate();

//  Calculate difference  between dates - increment if  necessary.
function calculate()
   {
   var birthday = new Date("May 26, "+the_year+" 00:00:00");
   var b_day = ((birthday.getDate()<10) ? "0" : "")+ birthday.getDate();
   msDifference = birthday.getTime() - now.getTime();

// Kick out of function if today is the day.
   if( (birthday.getMonth()==now.getMonth()) && (b_day==dayNr) )
      {
      msDifference = 0;
      return;
      }

// Increment designated date by 1 year if necessary.
   if( msDifference <= 0 )
      {
      the_year++;
      calculate();
      }
   else
      return;
   }

calculate();

// Calculate number of days left.
msPerDay = 24 * 60 * 60 * 1000 ; // Number of milliseconds per day
daysLeft = msDifference / msPerDay;
daysLeft = Math.floor(daysLeft);

// Array for today's date - day.
Day= new Array(7)
Day[0]="Sunday";
Day[1]="Monday";
Day[2]="Tuesday";
Day[3]="Wednesday";
Day[4]="Thursday";
Day[5]="Friday";
Day[6]="Saturday";

// Array for today's date - month.
Month= new Array(12)
Month[0]="January";
Month[1]="February";
Month[2]="March";
Month[3]="April";
Month[4]="May";
Month[5]="June";
Month[6]="July";
Month[7]="August";
Month[8]="September";
Month[9]="October";
Month[10]="November";
Month[11]="December";

// String to display current date.
if(now.getYear() <= 99)

var todaysDate =(" " + Day[dName] + " " + Month[mName] + " " + dayNr + ", " + "19" + yr + "<BR>");
else
   var todaysDate =(" " + Day[dName] + " " + Month[mName] + " " + dayNr + ", " + yr + "<BR>");

// Alert to display years-months-weeks-days-hours-minutes-seconds left.
function completeBreakdown()
   { 
   var now = new Date();
   var birthday = new Date("May 26, "+the_year+" 00:00:00")
   msDifference = birthday.getTime() - now.getTime();

msPerWeek = 7 * 24 * 60 * 60 * 1000 ; // Number of milliseconds per week
   msPerDay = 24 * 60 * 60 * 1000 ; // Number of milliseconds per day
   msPerHour = 60 * 60 * 1000 ; // Number of milliseconds per hour
   msPerMin = 60 * 1000 ; // Number of milliseconds per minute

weeks_Left = msDifference / msPerWeek;
   weeks_Left = Math.floor(weeks_Left);

days_Left =msDifference - weeks_Left*msPerWeek;
   days_Left = days_Left / msPerDay;
   days_Left = Math.floor(days_Left);

hours_Left =msDifference - ( (weeks_Left*msPerWeek) + (days_Left*msPerDay) );
   hours_Left = hours_Left / msPerHour;
   hours_Left = Math.floor(hours_Left);

minutes_Left = msDifference - ( (weeks_Left*msPerWeek) + (days_Left*msPerDay) + (hours_Left*msPerHour) );
   minutes_Left = minutes_Left / msPerMin;
   minutes_Left = Math.floor(minutes_Left);

seconds_Left = msDifference - ( (weeks_Left*msPerWeek) + (days_Left*msPerDay) + (hours_Left*msPerHour) + (minutes_Left*msPerMin) );
   seconds_Left = seconds_Left / 1000;
   seconds_Left = Math.floor(seconds_Left);

// Used to display singular/plural in the alert message.
   if( weeks_Left >=2 )
      {
      var intro = "There are";
      var weeks = " wks, ";
      }
   else
      {
      var intro = "There is";
      var weeks = " wk, ";
     }

if( days_Left >=2 )
      var days = " days, ";
   else
      var days = " day, ";

if( hours_Left >=2 )
      var hours = " hrs, ";
   else
      var hours = " hr, ";

if( minutes_Left >=2 )
      var minutes = " mins, ";
   else
      var minutes = " min, ";

if( seconds_Left >=2 )
      var seconds = " secs ";
   else
      var seconds = " sec ";

// String to display in alert message.
   var time_Left =weeks_Left + weeks + days_Left + days + hours_Left + hours + minutes_Left + minutes + " and " + seconds_Left + seconds;

if(msDifference >= 1)
      { alert("\n" + intro + "\n\n" + time_Left + "\n\nuntil Herbert Flaig's Birthday."); }
   else
      { alert("\nHappy Birthday!"); }
   }

// Called by View Source button - displays text file of source.
function viewSource()
   {
   alert("\nA text file with source will be loaded to the full window.\n\nUse your browser BACK button to return to the examples.");
   top.window.location="js-ctdn3.txt";
   }

// Called by Brief Note button.
function viewNote()
   {
   alert("\nSame old thing, with a new twist... on the designated day a birthday message is displayed. After that, the designated date is automatically incremented by one year.\n\nPlay with your system date.");
   }

// -->
</script>

Place in the <BODY>: