<!-- Begin
  if (document.images) {
nexton = new Image(120, 55);	nexton.src = "/picts/nexton.gif"
nextoff = new Image(120, 55);	nextoff.src = "/picts/nextoff.gif"
backon = new Image();	backon.src = "/picts/back-on.gif"
backoff = new Image();	backoff.src = "/picts/back-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;
}
}
// -->