//These functions make for a seamless transition from different button image/states 
//by forcing the browser to pre-cache the image, otherwise there can be lag between transition
//or not loading at all as in Opera
	
	order_over = new Image();
	order_over.src = '/graphics/ordernow.over.gif';
	order_down = new Image();
	order_down.src = '/graphics/ordernow.down.gif';


function preloadBackButton()
{
	back_button = new Image();
	back_button.src = "/graphics/button.back.up.gif";
	back_button_over = new Image();
	back_button_over.src = '/graphics/button.back.over.gif';
	back_button_down = new Image();
	back_button_down.src = '/graphics/button.back.down.gif';
}
function preloadNextButton()
{
	next_button_over = new Image();
	next_button_over.src = '/graphics/button.back.over.gif';
	next_button_down = new Image();
	next_button_down.src = '/graphics/button.back.down.gif';
}
function preloadLoginButton()
{
	login_button_over = new Image();
	login_button_over.src = '/graphics/login.button.inactive.gif';
	login_button_down = new Image();
	login_button_down.src = '/graphics/login.button.inactive.gif';
	login_button_up = new Image();
	login_button_up.src = '/graphics/login.button.inactive.gif';
}