if (document.images) {
            img1on = new Image();
            img1on.src = "images/top_2homh.jpg";
                        
            img1off = new Image();
            img1off.src = "images/top_2hom.jpg";

            img2on = new Image();
            img2on.src = "images/top_3galh.jpg";
                        
            img2off = new Image();
            img2off.src = "images/top_3gal.jpg";

            img3on = new Image();
            img3on.src = "images/top_4comh.jpg";
                        
            img3off = new Image();
            img3off.src = "images/top_4com.jpg";

            img4on = new Image();
            img4on.src = "images/top_5preh.jpg";
                        
            img4off = new Image();
            img4off.src = "images/top_5pre.jpg";

            img5on = new Image();
            img5on.src = "images/top_6filh.jpg";
                        
            img5off = new Image();
            img5off.src = "images/top_6fil.jpg";

            img6on = new Image();
            img6on.src = "images/left_1welh.jpg";
                        
            img6off = new Image();
            img6off.src = "images/left_1wel.jpg";

            img7on = new Image();
            img7on.src = "images/left_2feah.jpg";
                        
            img7off = new Image();
            img7off.src = "images/left_2fea.jpg";

            img8on = new Image();
            img8on.src = "images/left_3stoh.jpg";
                        
            img8off = new Image();
            img8off.src = "images/left_3sto.jpg";

            img9on = new Image();
            img9on.src = "images/left_4newh.jpg";
                        
            img9off = new Image();
            img9off.src = "images/left_4new.jpg";



            img10on = new Image();
            img10on.src = "images/left_5preh.jpg";
                        
            img10off = new Image();
            img10off.src = "images/left_5pre.jpg";

            img11on = new Image();
            img11on.src = "images/left_6sigh.jpg";
                        
            img11off = new Image();
            img11off.src = "images/left_6sig.jpg";



            img12on = new Image();
            img12on.src = "images/left_1scrh.jpg";
                        
            img12off = new Image();
            img12off.src = "images/left_1scr.jpg";

            img13on = new Image();
            img13on.src = "images/left_2arth.jpg";
                        
            img13off = new Image();
            img13off.src = "images/left_2art.jpg";

            img14on = new Image();
            img14on.src = "images/left_3anih.jpg";
                        
            img14off = new Image();
            img14off.src = "images/left_3ani.jpg";


            img15on = new Image();
            img15on.src = "images/front_ent2h.jpg";
                        
            img15off = new Image();
            img15off.src = "images/front_ent2.jpg";

            img16on = new Image();
            img16on.src = "images/front_clih.jpg";
                        
            img16off = new Image();
            img16off.src = "images/front_cli.jpg";
			
			img17on = new Image();
            img17on.src = "images/left_races-on.jpg";
			
			img17off = new Image();
            img17off.src = "images/left_races-off.jpg";


        }

// Function to 'activate' images.
function imgOn(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "on.src");
        }
}

// Function to 'deactivate' images.
function imgOff(imgName) {
        if (document.images) {
            document[imgName].src = eval(imgName + "off.src");
        }
}