var temp ="";
temp = navigator.userAgent.substring(8,9);
browserVer=0;
if (parseFloat(temp)>2){
        browserVer=1;
        }
// Navigational bars:
if (browserVer == 1) {

a1 = new Image;
a1.src = "../img/heda1-a.gif";
a2 = new Image;
a2.src = "../img/heda1-b.gif";

b1 = new Image;
b1.src = "../img/heda2-a.gif";
b2 = new Image;
b2.src = "../img/heda2-b.gif";

c1 = new Image;
c1.src = "../img/heda3-a.gif";
c2 = new Image;
c2.src = "../img/heda3-b.gif";

d1 = new Image;
d1.src = "../img/heda4-a.gif";
d2 = new Image;
d2.src = "../img/heda4-b.gif";

e1 = new Image;
e1.src = "../img/heda5-a.gif";
e2 = new Image;
e2.src = "../img/heda5-b.gif";

f1 = new Image;
f1.src = "../img/heda6-a.gif";
f2 = new Image;
f2.src = "../img/heda6-b.gif";

g1 = new Image;
g1.src = "../img/heda7-a.gif";
g2 = new Image;
g2.src = "../img/heda7-b.gif";

h1 = new Image;
h1.src = "../img/heda8-a.gif";
h2 = new Image;
h2.src = "../img/heda8-b.gif";

i1 = new Image;
i1.src = "../img/heda9-a.gif";
i2 = new Image;
i2.src = "../img/heda9-b.gif";

j1 = new Image;
j1.src = "../img/heda10-a.gif";
j2 = new Image;
j2.src = "../img/heda10-b.gif";
}
function hiLite(imgDocID,imgObjName) {
if (browserVer == 1) {
document.images[imgDocID].src = eval(imgObjName + ".src")
}}