browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))

if (browser)

{

Img1off = new Image(101, 28);
Img1off.src = "../images/sub/tb_home1.gif";
Img1on = new Image(101, 28);
Img1on.src = "../images/sub/tb_home2.gif";

Img2off = new Image(100, 28);
Img2off.src = "../images/sub/tb_about1.gif";
Img2on = new Image(100, 28);
Img2on.src = "../images/sub/tb_about2.gif";

Img3off = new Image(117, 28);
Img3off.src = "../images/sub/tb_projects1.gif";
Img3on = new Image(117, 28);
Img3on.src = "../images/sub/tb_projects2.gif";

Img4off = new Image(112, 28);
Img4off.src = "../images/sub/tb_contact1.gif";
Img4on = new Image(112, 28);
Img4on.src = "../images/sub/tb_contact2.gif";

Img5off = new Image(108, 28);
Img5off.src = "../images/sub/tb_client1.gif";
Img5on = new Image(108, 28);
Img5on.src = "../images/sub/tb_client2.gif";

Img6off = new Image(103, 28);
Img6off.src = "../images/sub/tb_log1.gif";
Img6on = new Image(103, 28);
Img6on.src = "../images/sub/tb_log2.gif";

}

function loadimage(imageName, imgObjName)
{
    if (browser) 
    {
        document.images[imageName].src = eval(imgObjName + ".src");
        return true;
    }
}