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

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

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

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

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

image6 = new Image();
image6.src = "images/btnContact_on.jpg";