function imgon(imgName) {
  if (document.images) {
	if (activeB != imgName){
    document.images[imgName].src = eval(imgName + "_on.src");
}
}
}

function imgoff(imgName) {
  if (document.images){
	if (activeB != imgName){
    document.images[imgName].src = eval(imgName + "_off.src");}
}
}

function imgon1(imgName) {
  if (document.images) {
    document.images[imgName].src = eval(imgName + "_on.src");
}
}

function imgoff1(imgName) {
  if (document.images){
    document.images[imgName].src = eval(imgName + "_off.src");
}
}

function Deactivate(imgName) {
  if (document.images){
    document.images[imgName].src = eval(imgName + "_off.src");}
}

function ShowThis(theDiv,imgName) {
AllHide();
Deactivate(activeB);
var elem = document.getElementById(theDiv);
activeB = imgName
elem.style.visibility = 'visible';
  if (document.images) 
    document.images[imgName].src = eval(imgName + "_on.src");
}