image1 = new Image();
image1.src = "images/icon5_all_dn.jpg";

image2 = new Image();
image2.src = "images/icon5_perf_dn.jpg";

image3 = new Image();
image3.src = "images/icon5_cat_dn.jpg";

image4 = new Image();
image4.src = "images/icon5_install_dn.jpg";

image5 = new Image();
image5.src = "images/icon5_apps_dn.jpg";