if (document.images){
autopOn=new Image(57, 40); autopOn.src="/img/autop_on.jpg";
autopOff=new Image(57, 40); autopOff.src="/img/autop_off.jpg";
ribOn=new Image(117, 40); ribOn.src="/img/rib_on.jpg";
ribOff=new Image(117, 40); ribOff.src="/img/rib_off.jpg";
bigaOn=new Image(53, 40); bigaOn.src="/img/biga_on.jpg";
bigaOff=new Image(53, 40); bigaOff.src="/img/biga_off.jpg";
atrOn=new Image(65, 40); atrOn.src="/img/atr_on.jpg";
atrOff=new Image(65, 40); atrOff.src="/img/atr_off.jpg";
specOn=new Image(128, 40); specOn.src="/img/spec_on.jpg";
specOff=new Image(128, 40); specOff.src="/img/spec_off.jpg";
}
function on(pic){
if (document.images){
document.images[pic].src=eval (pic + "On.src"); } }
function off(pic){
if (document.images){
document.images[pic].src=eval (pic + "Off.src"); } }