//detect browser:
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
else browserVer = "2";

//preload images:
if (browserVer == 1) {

a1 = new Image(80,80);
a1.src = "/images/road-tests-up.gif";
a2 = new Image(80,80);
a2.src = "/images/road-tests-down.gif";

b1 = new Image(80,80);
b1.src = "/images/features-up.gif";
b2 = new Image(80,80);
b2.src = "/images/features-down.gif";

c1 = new Image(80,80);
c1.src = "/images/electronics-up.gif";
c2 = new Image(80,80);
c2.src = "/images/electronics-down.gif";

d1 = new Image(80,80);
d1.src = "/images/guides-up.gif";
d2 = new Image(80,80);
d2.src = "/images/guides-down.gif";

e1 = new Image(80,80);
e1.src = "/images/sponsors-up.gif";
e2 = new Image(80,80);
e2.src = "/images/sponsors-down.gif";

p1 = new Image(90,135);
p1.src = "/images/rtpanel-up.jpg";
p2 = new Image(90,135);
p2.src = "/images/rtpanel-down.jpg";

q1 = new Image(90,140);
q1.src = "/images/vlpanel-up.gif";
q2 = new Image(90,140);
q2.src = "/images/vlpanel-down.gif";
}



//image swapping function:
function hiLite(imgDocID, imgObjName, comment) {
if (browserVer == 1) {
document.images[imgDocID].src = eval(imgObjName + ".src");
window.status = comment; return true;
}}
//end hiding -->