var images = new Array();

images[0] = new Image();
images[0].src = '/images/header/nav_main-page_on.gif';
images[1] = new Image();
images[1].src = '/images/header/nav_fruit_on.gif';
images[2] = new Image();
images[2].src = '/images/header/nav_spa_on.gif';
images[3] = new Image();
images[3].src = '/images/header/nav_mission_on.gif';
images[4] = new Image();
images[4].src = '/images/header/nav_contact_on.gif';
images[5] = new Image();
images[5].src = '/images/header/nav_sign-in_on.gif';
images[6] = new Image();
images[6].src = '/images/header/nav_view-cart_on.gif';
images[7] = new Image();
images[7].src = '/images/header/nav_check-out_on.gif';

function on(id) {
	document.getElementById(id).src = '/images/header/' + id + '_on.gif';
}
function off(id) {
	document.getElementById(id).src = '/images/header/' + id + '.gif';
}