Calendar Demo
//Constructor
function calendar(id,d,p){
this.id = id;
this.dateObject = d;
this.pix = p;
this.write = writeCalendar;
this.length = getLength;
this.month = d.getMonth();
this.date = d.getDate();
this.day = d.getDay();
this.year = d.getFullYear();
this.getFormattedDate = getFormattedDate;
//get the first day of the month's day
d.setDate(1);
this.firstDay = d.getDay();
//then reset the date object to the correct date
d.setDate(this.date);
}
var days = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');
var months = new Array('January','February','March','April','May','June','July','August','September','October','November','December');
function getFormattedDate(){
return days[this.day] + ', ' + months[this.month] + ' ' + this.date + ', ' + this.year;
//return this.month + '/' + this.date + '/' + this.year;
}
function writeCalendar(){
var calString = '';
//write month and year at top of table
calString += '';
//write the image - comment out to hide images
calString += '
//write the month
calString += '' + months[this.month] + ', ' + this.year + '
//write a row containing days of the week
calString += '';
for(i=0;i' + days[i].substring(0,3) + '';
}
//write the body of the calendar
calString += '';
//create 6 rows so that the calendar doesn't resize
for(j=0;j<42;j++){
var displayNum = (j-this.firstDay+1);
if(j
calString += ' ';
}else if(displayNum==this.date){
calString += '' + displayNum + '';
}else if(displayNum > this.length()){
//Empty cells at bottom of calendar
calString += ' ';
}else{
//the rest of the numbered cells
calString += '' + displayNum + '';
}
if(j%7==6){
calString += ' ';
}
}
//close the last number row
calString += ' ';
//write the nav row
calString += '';
calString += '<';
calString += '<';
calString += ' ';
calString += '>';
calString += '>';
calString += ' ';
calString += '';
calString += '';
return calString;
}
function getLength(){
//thirty days has September...
switch(this.month){
case 1:
if((this.dateObject.getFullYear()%4==0&&this.dateObject.getFullYear()%100!=0)||this.dateObject.getFullYear()%400==0)
return 29; //leap year
else
return 28;
case 3:
return 30;
case 5:
return 30;
case 8:
return 30;
case 10:
return 30
default:
return 31;
}
}
function changeDate(td,cal){
//Some JavaScript trickery
//Change the cal argument to the existing calendar object
//This is why the first argument in the constructor must match the variable name
//The cal reference also allows for multiple calendars on a page
cal = eval(cal);
document.getElementById(cal.id + "selected").className = "days";
document.getElementById(cal.id + "selected").id = "";
td.className = "date";
td.id = cal.id + "selected";
//set the calendar object to the new date
cal.dateObject.setDate(td.firstChild.nodeValue);
cal = new calendar(cal.id,cal.dateObject,cal.pix);
//here is where you could react to a date change - I'll just display the formatted date
alert(cal.getFormattedDate());
}
function changeMonth(mo,cal){
//more trickery!
cal = eval(cal);
//The Date object is smart enough to know that it should roll over in December
//when going forward and in January when going back
cal.dateObject.setMonth(cal.dateObject.getMonth() + mo);
cal = new calendar(cal.id,cal.dateObject,cal.pix);
cal.formattedDate = cal.getFormattedDate();
document.getElementById('calContainer').innerHTML = cal.write();
}
.month, .nav{
background-color: navy;
color: white;
font: 10pt sans-serif;
}
.nav{
cursor: pointer;
cursor: hand;
}
.dayHeader{
color: black;
font: 10pt sans-serif;
border-bottom: 1px black solid;
font-weight: bold;
}
.empty{
background-color: white;
border-bottom: 1px black solid;
}
.days{
color: black;
background-color: rgb(235,235,235);;
font: 10pt sans-serif;
border-bottom: 1px black solid;
border-left: 1px black solid;
border-right: 1px black solid;
cursor: pointer;
cursor: hand;
}
.date{
color: maroon;
font: 10pt sans-serif;
font-weight: bold;
border-bottom: 1px black solid;
border-left: 1px black solid;
border-right: 1px black solid;
cursor: pointer;
cursor: hand;
}
//create the pix array
var pix = new Array();
for(i=0; i<12; i++){
pix[i] = new Image();
pix[i].src = 'patternImages/fractal' + i + '.jpg';
}
//Place this script wherever you want your calendar
//The first argument must match the var name
var thisMonth = new calendar('thisMonth',new Date(),pix);
document.write(thisMonth.write());
CalendarEachMonth.zip( 135 k)