//The following functions activates & deactivates rollovers
           
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;
  }
}