var maxCount = 185;
var versionIllustration1 = "b";
var versionIllustration2 = "b";
function rotatePictures () {
	intRandomNumber = Math.floor (Math.random () * maxCount);
	if (intRandomNumber == 0) intRandomNumber = 1;
	strRandomNumber = String (intRandomNumber);
	if (strRandomNumber.length < 3) {
		intLength = strRandomNumber.length;
		for (i = 3; i > intLength; i--)
			strRandomNumber = "0" + strRandomNumber;
	}
	document.getElementById("illustration2a").src = "../medias/img/annuaire/vignettes_home/" + strRandomNumber + ".jpg";

	window.setTimeout ("changePicture (1)", 0);
	window.setTimeout ("changePicture (2)", 2500);
}
function changePicture (number) {
	if (number == 1)
		versionIllustration = versionIllustration1;
	else
		versionIllustration = versionIllustration2;
	intRandomNumber = Math.floor (Math.random () * maxCount);
	if (intRandomNumber == 0) intRandomNumber = 1;
	strRandomNumber = String (intRandomNumber);
	if (strRandomNumber.length < 3) {
		intLength = strRandomNumber.length;
		for (i = 3; i > intLength; i--)
			strRandomNumber = "0" + strRandomNumber;
	}
	document.getElementById("illustration" + number + versionIllustration).src = "../medias/img/annuaire/vignettes_home/" + strRandomNumber + ".jpg";
	if (versionIllustration == "b"){
		tDiv = "divIllustration" + number + "a";
		vDiv = "divIllustration" + number + "b";
		if (number == 1)
			versionIllustration1 = "a";
		else
			versionIllustration2 = "a";
	} else {
		tDiv = "divIllustration" + number + "b";
		vDiv = "divIllustration" + number + "a";
		if (number == 1)
			versionIllustration1 = "b";
		else
			versionIllustration2 = "b";
	}
	fx1a = new Fx.Tween(tDiv, {duration: 1000});
	fx1a.start ('opacity', '1', '0');
	fx1b = new Fx.Tween(vDiv, {duration: 1000});
	fx1b.start ('opacity', '0', '1');

	window.setTimeout ("changePicture (" + number + ")", 5000);
}
window.addEvent('domready', function() {
	rotatePictures();
});