<!-- Begin


if (document.images) {

nexton = new Image(495, 100);
nexton.src = "picts/junction_on.gif"

nextoff = new Image(495, 100);
nextoff.src = "picts/junction_off.gif"


}

function img_act(imgName) {
if (document.images) {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;
}
}

function img_inact(imgName) {
if (document.images) {
imgOff = eval(imgName + "off.src");
document [imgName].src = imgOff;
}
}

// -->