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_1_barratop_java3_01_btn_azienda_over = newImage("images/home_1_barratop_java3_01-bt.jpg");
			home_1_barratop_java3_01_btn_servizi_over = newImage("images/home_1_barratop_java3_01-04.jpg");
			home_1_barratop_java3_01_btn_utilita_over = newImage("images/home_1_barratop_java3_01-05.jpg");
			home_1_barratop_java3_01_btn_clientitop_over = newImage("images/home_1_barratop_java3_01-06.jpg");
			home_1_barratop_java3_01_btn_rivenditori_over = newImage("images/home_1_barratop_java3_01-07.jpg");
			home_1_barratop_java3_01_btn_lavora_over = newImage("images/home_1_barratop_java3_01-08.jpg");
			home_1_barratop_java3_01_btn_mappa_over = newImage("images/home_1_barratop_java3_01-09.jpg");
			home_1_barratop_java3_01_btn_contatti_over = newImage("images/home_1_barratop_java3_01-10.jpg");
			home_1_barratop_java3_01_btn_press_over = newImage("images/home_1_barratop_java3_01-11.jpg");
			btn_azienda_over = newImage("images/btn_azienda-over.jpg");
			btn_servizi_over = newImage("images/btn_servizi-over.jpg");
			btn_utilita_over = newImage("images/btn_utilita-over.jpg");
			btn_clientitop_over = newImage("images/btn_clientitop-over.jpg");
			btn_rivenditori_over = newImage("images/btn_rivenditori-over.jpg");
			btn_lavora_over = newImage("images/btn_lavora-over.jpg");
			btn_mappa_over = newImage("images/btn_mappa-over.jpg");
			btn_contatti_over = newImage("images/btn_contatti-over.jpg");
			btn_press_over = newImage("images/btn_press-over.jpg");
			preloadFlag = true;
		}
	}