if (document.images) {var bsom1roff = new Image();bsom1roff.src = "images/bsom1.gif";
var bsom1ron = new Image();bsom1ron.src ="images/bsom1r.gif";}
if (document.images) {var bsom5roff = new Image();bsom5roff.src = "images/bsom5.gif";
var bsom5ron = new Image(); bsom5ron.src = "images/bsom5r.gif";}
if (document.images) {var bsom8roff = new Image();bsom8roff.src = "images/bsom8.gif";
var bsom8ron = new Image(); bsom8ron.src = "images/bsom8r.gif";}
if (document.images) {var bsom3roff = new Image();bsom3roff.src = "images/bsom3.gif";
var bsom3ron = new Image(); bsom3ron.src = "images/bsom3r.gif";}
if (document.images) {var bsom6roff = new Image();bsom6roff.src = "images/bsom6.gif";
var bsom6ron = new Image(); bsom6ron.src = "images/bsom6r.gif";}
if (document.images) {var bsom9roff = new Image();bsom9roff.src = "images/bsom9.gif";
var bsom9ron = new Image();bsom9ron.src =  "images/bsom9r.gif";}
if (document.images) {var bsom4roff = new Image();bsom4roff.src = "images/bsom4.gif";
var bsom4ron = new Image(); bsom4ron.src = "images/bsom4r.gif";}
if (document.images) {var bsom7roff = new Image();bsom7roff.src = "images/bsom7.gif";
var bsom7ron = new Image(); bsom7ron.src = "images/bsom7r.gif";}
if (document.images) {var bsom2roff = new Image();bsom2roff.src = "images/bsom2.gif";
var bsom2ron = new Image(); bsom2ron.src = "images/bsom2r.gif";}
 function getOff(nom){if (document.images) {document.images[nom].src = eval(nom + 'off').src;}}
 function getOn(nom){if (document.images) {document.images[nom].src = eval(nom + 'on').src;	}}
 function getDown(nom){if (document.images) {document.images[nom].src = eval(nom + 'down').src;}}