if (document.images) 
{  

img1 = new Image;
img1.src = "i/buttons/but001o.png";

img2 = new Image;
img2.src = "i/buttons/but002o.png";

img3 = new Image;
img3.src = "i/buttons/but003o.png";

img4 = new Image;
img4.src = "i/buttons/but004o.png";

img5 = new Image;
img5.src = "i/bgs/bg039.gif";


}