#site .nav_home, .nav_about,
			.nav_references, .nav_contact,
			.nav_service
{
	display: block;
	height: 51px;
	text-decoration: none;
	background-image: url('images/spacer.gif');
}

#site .nav_home:hover {
	text-decoration: none;
	background-image: url('images/home_h.jpg');
}

#site .nav_about:hover {
	text-decoration: none;
	background-image: url('images/about_h.jpg');
}

#site .nav_references:hover {
	text-decoration: none;
	background-image: url('images/references_h.jpg');
}

#site .nav_contact:hover {
	text-decoration: none;
	background-image: url('images/contact_h.jpg');
}

#site .nav_service:hover {
	text-decoration: none;
	background-image: url('images/service_h.jpg');
}