var Img1On = new Image();
Img1On.src = "img/bt_profilo_on.jpg";
var Img1Off = new Image();
Img1Off.src = "img/bt_profilo.jpg";

var Img2On = new Image();
Img2On.src = "img/bt_offerta_on.jpg";
var Img2Off = new Image();
Img2Off.src = "img/bt_offerta.jpg";

var Img3On = new Image();
Img3On.src = "img/bt_referenze_on.jpg";
var Img3Off = new Image();
Img3Off.src = "img/bt_referenze.jpg";

var Img4On = new Image();
Img4On.src = "img/bt_contatti_on.jpg";
var Img4Off = new Image();
Img4Off.src = "img/bt_contatti.jpg";

var Img5On = new Image();
Img5On.src = "img/bt_arearis_on.jpg";
var Img5Off = new Image();
Img5Off.src = "img/bt_arearis.jpg";

function MOver(picimage){
	Picture_Over = eval(picimage +"On.src")
	document[picimage].src = Picture_Over
}
function MOut(picimage){
	Picture_Out = eval(picimage +"Off.src")
	document[picimage].src = Picture_Out
}