// JavaScript Document

//var c = 2;
var c = Math.round(15*Math.random());
var changeActive = function() {
	//alert(c);
	$('sfondo').setStyles({
		'background-image': 'url(../img/home/foto'+c+'.jpg)'
	});
	
	var changeIn = new Fx.Morph('sfondo', {duration:1000}).start({ // richiamo l'immagine con effetto fade
		'opacity': [0,1]
	});
	
	if (c<15) {
		c++;
	} else {
		c=1;
	}
}
var changeBack = function(){
	
	var changeOut = new Fx.Morph('sfondo', {duration:1000}).start({ // richiamo l'immagine con effetto fade
		'opacity': [1,0]
	});
	
	changeActive.delay(1000);
	
}

window.addEvent('domready', function() {
	var changeBackVar = changeBack.periodical(4000);
	
	var i = Math.round(15*Math.random());
	$('sfondo').setStyles({
		'background-image': 'url(../img/home/foto'+i+'.jpg)'
	});
	
});