if (document.images) {

home_off = new Image(); home_off.src = "images/menu/home0.png" 
home_over = new Image(); home_over.src = "images/menu/home1.png"
ristorante_off = new Image(); ristorante_off.src = "images/menu/ristorante0.png"
ristorante_over = new Image(); ristorante_over.src = "images/menu/ristorante1.png"
menuapp_off = new Image(); menuapp_off.src = "images/menu/menuapp0.png"
menuapp_over = new Image(); menuapp_over.src = "images/menu/menuapp1.png"
vini_off = new Image(); vini_off.src = "images/menu/vini0.png"
vini_over = new Image(); vini_over.src = "images/menu/vini1.png"
dovesiamo_off = new Image(); dovesiamo_off.src = "images/menu/dovesiamo0.png"
dovesiamo_over = new Image(); dovesiamo_over.src = "images/menu/dovesiamo1.png"
contatti_off = new Image(); contatti_off.src = "images/menu/contatti0.png"
contatti_over = new Image(); contatti_over.src = "images/menu/contatti1.png"
camper_off = new Image(); camper_off.src = "images/menu/camper0.png"
camper_over = new Image(); camper_over.src = "images/menu/camper1.png"
}

function turn_off(ImageName) {

	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_off.src");
	}
}

function turn_over(ImageName) {
	if (document.images != null) {
		document[ImageName].src = eval(ImageName + "_over.src");
	}
}