Pass to the next image everyday - actionscript-3

Question

I'm developing a small app in AS3.
Everyday, you can see a new image.
I've got all my image on a server.
Here is my code for the moment :
var imageLoader:Loader = new Loader();
var days:Array = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday"];
var my_date:Date = new Date();
trace(days[my_date.day]);
startBtn.addEventListener(MouseEvent.CLICK, LoadImage, false, 0, true);
function LoadImage(event:MouseEvent):void{
var image:URLRequest = new URLRequest ("http://www.blabla.com/images/12.jpg");
imageLoader.load(image);
addChild (imageLoader);
}
Is it possible to tell the code the go the next image (13.jpg) the next day ? and everyday like that (next day = 14.jpg , next day = 15.jpg....ect).
Do you know a way to do that ?
Thank you very much for your help,

Answer 1

The code below should do it. I grabbed the getDayOfYear function from here: siafoo.net
I will post some optimizations to the function in a little while.
function getDayOfYear(date:Date):Number {
var monthLengths:Array = new Array (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
// A leap year is divisable by 4, but not by 100 unless divisable by 400.
if (((date.getFullYear() % 4 == 0) && (date.getFullYear() % 100 != 0)) || (date.getFullYear() % 400 == 0)) {
monthLengths[1] = 29;
}
var dayInYear = 0;
// get day of year up to month
for (var i:Number = 0; i < date.getMonth(); i++) {
dayInYear += monthLengths[i];
}
// add day inside month
dayInYear += date.getDate();
// Start counting on 0 (optional)
// dayInYear--;
return dayInYear;
}
function LoadImage(event:MouseEvent):void{
var image:URLRequest = new URLRequest ("http://www.blabla.com/images/"+getDayOfYear(new Date())+".jpg");
imageLoader.load(image);
addChild (imageLoader);
}