var n3 = false;
image1       = new Image();
image1.src   = "images/bbb-promo.png";
image1on     = new Image();
image1on.src = "images/bbb-promo-hover.png"



function on3(name)
{
    document[name].src = eval(name + "on.src");
}

function off3(name)
{
    document[name].src = eval(name + ".src");
}

n3 = true;
function on(name)
{
   if (n3)
      on3(name);
}

function off(name)
{
   if (n3)
      off3(name);
}


function clearDefault(el) {
  if (el.defaultValue==el.value) el.value = ""
}