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

if (browser)

{

Img1off = new Image(144, 22);
Img1off.src = "../images/sub/tb_author1.gif";
Img1on = new Image(144, 22);
Img1on.src = "../images/sub/tb_author2.gif";

Img2off = new Image(144, 22);
Img2off.src = "../images/sub/tb_shadrani_series1.gif";
Img2on = new Image(144, 22);
Img2on.src = "../images/sub/tb_shadrani_series2.gif";

Img3off = new Image(144, 23);
Img3off.src = "../images/sub/tb_excerpts1.gif";
Img3on = new Image(144, 23);
Img3on.src = "../images/sub/tb_excerpts2.gif";

Img4off = new Image(144, 22);
Img4off.src = "../images/sub/tb_testimonials1.gif";
Img4on = new Image(144, 22);
Img4on.src = "../images/sub/tb_testimonials2.gif";

Img5off = new Image(144, 22);
Img5off.src = "../images/sub/tb_reviews1.gif";
Img5on = new Image(144, 22);
Img5on.src = "../images/sub/tb_reviews2.gif";

Img6off = new Image(144, 24);
Img6off.src = "../images/sub/tb_buy_books1.gif";
Img6on = new Image(144, 24);
Img6on.src = "../images/sub/tb_buy_books2.gif";

Img7off = new Image(144, 22);
Img7off.src = "../images/sub/tb_contact1.gif";
Img7on = new Image(152, 22);
Img7on.src = "../images/sub/tb_contact2.gif";

Img8off = new Image(144, 23);
Img8off.src = "../images/sub/tb_home1.gif";
Img8on = new Image(152, 23);
Img8on.src = "../images/sub/tb_home2.gif";
}

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