if (document.images){
nssa0 = new Image(); nssa0.src = "img/but1nen.gif";
nssa1 = new Image(); nssa1.src = "img/but1oen.gif";
nssb0 = new Image(); nssb0.src = "img/but2nen.gif";
nssb1 = new Image(); nssb1.src = "img/but2oen.gif";
nssc0 = new Image(); nssc0.src = "img/but3nen.gif";
nssc1 = new Image(); nssc1.src = "img/but3oen.gif";
nsse0 = new Image(); nsse0.src = "img/but5nen.gif";
nsse1 = new Image(); nsse1.src = "img/but5oen.gif";
nssf0 = new Image(); nssf0.src = "img/but6nen.gif";
nssf1 = new Image(); nssf1.src = "img/but6oen.gif";
nssg0 = new Image(); nssg0.src = "img/but7nen.gif";
nssg1 = new Image(); nssg1.src = "img/but7oen.gif";
}

function nsc0(name)
{if (document.images)
document.images[name].src = eval(name + '0.src');
}function nsc1(name)
{if (document.images)
document.images[name].src = eval(name + '1.src');}