//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(150,150);
a1.src = "pic/cd1_bw.jpg";
a2 = new Image(150,150);
a2.src = "pic/cd1.jpg";
b1 = new Image(150,150);
b1.src = "pic/cd2_bw.jpg";
b2 = new Image(150,150);
b2.src = "pic/cd2.jpg";
g1 = new Image(150,150);
g1.src = "pic/cd3_bw.jpg";
g2 = new Image(150,150);
g2.src = "pic/cd3.jpg";

c1 = new Image(200,150);
c1.src = "pic/x01_bw.jpg";
c2 = new Image(200,150);
c2.src = "pic/x01.jpg";

d1 = new Image(200,150);
d1.src = "pic/x02_bw.jpg";
d2 = new Image(200,150);
d2.src = "pic/x02.jpg";

e1 = new Image(200,150);
e1.src = "pic/x03_bw.jpg";
e2 = new Image(200,150);
e2.src = "pic/x03.jpg";

f1 = new Image(200,150);
f1.src = "pic/x08_bw.jpg";
f2 = new Image(200,150);
f2.src = "pic/x08.jpg";

}

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