var Img1on = new Image();
Img1on.src = "images/menu_02.gif";
var Img1off = new Image();
Img1off.src = "images/menu1_02.gif";

var Img2on = new Image();
Img2on.src = "images/menu_03.gif";
var Img2off = new Image();
Img2off.src = "images/menu1_03.gif";

var Img3on = new Image();
Img3on.src = "images/menu_04.gif";
var Img3off = new Image();
Img3off.src = "images/menu1_04.gif";

var Img4on = new Image();
Img4on.src = "images/menu_05.gif";
var Img4off = new Image();
Img4off.src = "images/menu1_05.gif";

var Img5on = new Image();
Img5on.src = "images/menu_06.gif";
var Img5off = new Image();
Img5off.src = "images/menu1_06.gif";

var Img6on = new Image();
Img6on.src = "images/menu_07.gif";
var Img6off = new Image();
Img6off.src = "images/menu1_07.gif";

var Img7on = new Image();
Img7on.src = "images/menu_08.gif";
var Img7off = new Image();
Img7off.src = "images/menu1_08.gif";

var Img8on = new Image();
Img8on.src = "images/menu_09.gif";
var Img8off = new Image();
Img8off.src = "images/menu1_09.gif";

var Img9on = new Image();
Img9on.src = "images/menu_10.gif";
var Img9off = new Image();
Img9off.src = "images/menu1_10.gif";

var Img10on = new Image();
Img10on.src = "images/menu_11.gif";
var Img10off = new Image();
Img10off.src = "images/menu1_11.gif";

var Img11on = new Image();
Img11on.src = "images/menu_12.gif";
var Img11off = new Image();
Img11off.src = "images/menu1_12.gif";

var Img12on = new Image();
Img12on.src = "images/menu_13.gif";
var Img12off = new Image();
Img12off.src = "images/menu1_13.gif";

function MOver(picimage)//funzione che si attiva con OnMouseOver
{
Picture_Over = eval(picimage +"on.src")
document[picimage].src = Picture_Over
}
function MOut(picimage)//funzione che si attiva con OnMouseOut
{
Picture_Out = eval(picimage +"off.src")
document[picimage].src = Picture_Out
}