imageArr1 = new Array();
 imageArr1[0] = new Image();
 imageArr1[0].src = "images/buttons/home_over.jpg";

 imageArr1[1] = new Image();
 imageArr1[1].src = "images/buttons/maps_over.jpg";
 
 imageArr1[2] = new Image();
 imageArr1[2].src = "images/buttons/testimonials_over.jpg";

 imageArr1[3] = new Image();
 imageArr1[3].src = "images/buttons/about_over.jpg";

 imageArr1[4] = new Image();
 imageArr1[4].src = "images/buttons/contact_over.jpg";

imageArr2 = new Array();
 imageArr2[0] = new Image();
 imageArr2[0].src = "images/buttons/home_out.jpg";

 imageArr2[1] = new Image();
 imageArr2[1].src = "images/buttons/maps_out.jpg";

 imageArr2[2] = new Image();
 imageArr2[2].src = "images/buttons/testimonials_out.jpg";

 imageArr2[3] = new Image();
 imageArr2[3].src = "images/buttons/about_out.jpg";

 imageArr2[4] = new Image();
 imageArr2[4].src = "images/buttons/contact_out.jpg";
   
function swap(img,name,method) {
 // method 1 = over (imageArr1)
 // method 2 = out (imageArr2)
 url = eval("imageArr"+method+"[img].src");
 document.images[name].src = url;
}