rolls = new Array (4);

rolls[0] = new Image(); rolls[0].src = "images/home_nav_01r.jpg";
rolls[1] = new Image(); rolls[1].src = "images/home_nav_02r.jpg";
rolls[2] = new Image(); rolls[2].src = "images/home_nav_03r.jpg";
rolls[3] = new Image(); rolls[3].src = "images/home_nav_04r.jpg";



ups = new Array (24);
ups[0] = "images/home_nav_01.jpg";
ups[1] = "images/home_nav_02.jpg";
ups[2] = "images/home_nav_03.jpg";
ups[3] = "images/home_nav_04.jpg";




function swapimg(img,swp) {

	 document.images[img].src = rolls[swp].src;   
}

function swapimgBack(img,swp) {

	 document.images[img].src = ups[swp]; 
    
}