comment valider la Date de naissance avec trois textbox de la date de mois de l'année par le programme de validation jquery

J'ai écrit un module Javascript qui gère savoir si ou non les données sont valides, vous pouvez consulter un exemple de travail dans le JSFiddle lien.

http://jsfiddle.net/dceast/vmHjN/

Ici est le module qui effectue la validation:

var compareDate, checkDates = false;
var validateObject = {
    init: function(year, month, day) {
        return this.compareDate.init(year, month, day);
    },
    compareDate: {
        init: function(year, month, day) {
            var isValid = false;
            //Compensate for zero based index, if month was not
            //subtracted from one 0 === Jan, 1 === Feb, 2 === Mar
            month -= 1;

            //Create a new date object with the selected
            //year, month, and day values and retrieve the
            //milliseconds from it.
            var mSeconds = (new Date(year, month, day)).getTime();
            var objDate = new Date();

            //Set the time of the object to the milliseconds 
            //retrieved from the original date. This will
            //convert it to a valid date.
            objDate.setTime(mSeconds);

            //Compare if the date has changed, if it has then
            //the date is not valid 
            if (objDate.getFullYear() === year &&
                objDate.getMonth() === month &&
                objDate.getDate() === day) 
            {
                isValid = true;
            }
            return isValid;
        }
    }
};

var compareDate, checkDates = false;
var validateObject = {
init: function(year, month, day) {
return this.compareDate.init(year, month, day);
},
compareDate: {
init: function(year, month, day) {
var isValid = false;
//Compensate for zero based index, if month was not
//subtracted from one 0 === Jan, 1 === Feb, 2 === Mar
month -= 1;
//Create a new date object with the selected
//year, month, and day values and retrieve the
//milliseconds from it.
var mSeconds = (new Date(year, month, day)).getTime();
var objDate = new Date();
//Set the time of the object to the milliseconds
//retrieved from the original date. This will
//convert it to a valid date.
objDate.setTime(mSeconds);
//Compare if the date has changed, if it has then
//the date is not valid
if (objDate.getFullYear() === year&&
objDate.getMonth() === month &&
objDate.getDate() === day)
{                
if(objDate <= new Date())
{
isValid = true;
}                   
}
return isValid;
}
}
};
$(function() {
var validateButton = $('#btValidate');
validateButton.click(function(e) {
var month = parseInt(document.getElementById('month').value, 0),
day = parseInt(document.getElementById('day').value, 0),
year = parseInt(document.getElementById('year').value, 0),
alertBox = $('#alert'),
isValid = false;
isValid = validateObject.init(year, month, day);
var color, message;
if (isValid === true)
{
color = "#008000";
message = "Your date is valid!";
}
else if (isValid === false)
{
color = "#F00";
message = "Your date is not valid!";
}
alertBox.css('background', "" + color)
.html("<p>"+ message +"</p>")
.stop()
.animate({
width: "200px",
paddingLeft: "75px"
}, 1750, "easeOutBounce", function() {
$(this).animate({
width: "0px",
paddingLeft: "0px"
}, 1000, "easeInBounce");
});
});
});

Code de travail ici:
http://jsfiddle.net/vmHjN/140/