<!-- use JS to reduce time and productivity - Mikey "CBX" Greenland 8-23-2004 -->
<!-- Begin Script for Alt Tag Layer - Chris Moore 7/21/04 -->
dd=document;NS=(dd.layers)?1:0;IE=(dd.all)?1:0;DOM=(dd.getElementById)?1:0 
function showlr(L){ 
if(NS)dd.layers[L].visibility='show'; 
else if (IE)obg=dd.all[L]; 
else obg=dd.getElementById(L); 
if(!NS)obg.style.visibility='visible'} 
function hidelr(L){ 
if(NS)dd.layers[L].visibility='hide'; 
else if (IE)obg=dd.all[L]; 
else obg=dd.getElementById(L); 
if(!NS)obg.style.visibility='hidden'} 
<!-- End Layer Script -->

<!-- Begin Script for Rollovers -->
if (document.images) {
  var classon = new Image();
  classon.src="images/class_on.gif";
  var classoff = new Image();
  classoff.src="images/class_off.gif";
  var agrandon = new Image();
  agrandon.src="images/agrand_on.gif";
  var agrandoff = new Image();
  agrandoff.src="images/agrand_off.gif";
  var essenton = new Image();
  essenton.src="images/essent_on.gif";
  var essentoff = new Image();
  essentoff.src="images/essent_off.gif";
  var discon = new Image();
  discon.src="images/disc_on.gif";
  var discoff = new Image();
  discoff.src="images/disc_off.gif";
}
function act(imgname) {
  if (document.images) 
    document.images[imgname].src = eval(imgname + "on.src");
}
function inact(imgname) {
  if (document.images)
    document.images[imgname].src = eval(imgname + "off.src");
}
<!-- End Script for Rollovers -->