browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);

if (browser_name == "Netscape" && browser_version >= 3.0) { roll = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 3.0) { roll = 'true'; }
else { roll = 'false'; }

function over(img,ref) { if (roll == 'true') { document.images[img].src = eval(img+'.src'); } }
function out(img,ref)  { if (roll == 'true') { document.images[img].src = ref; } }

if (roll == 'true')
{
image_3=new Image;image_3.src="/i/ctb1-on.gif";
image_4=new Image;image_4.src="/i/ctb2-on.gif";
image_5=new Image;image_5.src="/i/activemedia-on.gif";
}


// JavaScript Document

startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace(" over", "");
   }
   }
  }
 }
}
window.onload=startList;