var n1 = new Image();
n1.src = 'photos/1_on.jpg';
var n2 = new Image();
n2.src = 'photos/2_on.jpg';
var n3 = new Image();
n3.src = 'photos/3_on.jpg';
var n4 = new Image();
n4.src = 'photos/4_on.jpg';
var n5 = new Image();
n5.src = 'photos/5_on.jpg';
var n6 = new Image();
n6.src = 'photos/6_on.jpg';
var n7 = new Image();
n7.src = 'photos/7_on.jpg';
var n8 = new Image();
n8.src = 'photos/8_on.jpg';

var n1_off = new Image();
n1_off.src = 'photos/1_off.jpg';
var n2_off = new Image();
n2_off.src = 'photos/2_off.jpg';
var n3_off = new Image();
n3_off.src = 'photos/3_off.jpg';
var n4_off = new Image();
n4_off.src = 'photos/4_off.jpg';
var n5_off = new Image();
n5_off.src = 'photos/5_off.jpg';
var n6_off = new Image();
n6_off.src = 'photos/6_off.jpg';
var n7_off = new Image();
n7_off.src = 'photos/7_off.jpg';
var n8_off = new Image();
n8_off.src = 'photos/8_off.jpg';

function page_state(i)
{
var imgState = eval('document.images.nav'+i);
imgState.src = eval('n'+i+'.src');
}



function swap_on(o)
{
	o.src = eval('n'+o.name.substring(3)+'.src');
}

function swap_off(o)
{
	o.src = eval('n'+o.name.substring(3)+'_off.src');
	page_state(document.forms[0].page.value);
}