function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		home_over = newImage("img/home-over.gif");
		showroom_over = newImage("img/showroom-over.gif");
		profilo_over = newImage("img/profilo-over.gif");
		ambienti_over = newImage("img/ambienti-over.gif");
		promozioni_over = newImage("img/promozioni-over.gif");
		richieste_over = newImage("img/richieste-over.gif");
		partners_over = newImage("img/partners-over.gif");
		news_over = newImage("img/news-over.gif");
		claim = newImage("img/claim.gif");
		preloadFlag = true;
	}
}