#nav_menu{
	height: 65px;
	margin: 0;
	padding: 0;
}

#nav_menu ul{
	list-style: none;
	margin: 0 auto;
	width: 570px;
	padding: 0;
}

#nav_menu li{
	margin: 0;
	padding: 0;
	display:inline;
	float: left;
	cursor: pointer;
}

#home_nav{
	display: block;
	width: 119px;
	height: 65px;
	background: url("../images/navigation/home_off.png") no-repeat 0 0;
}

#home_nav:hover{
	background-image: url("../images/navigation/home_on.png");
}

#products_nav{
	display: block;
	width: 110px;
	height: 65px;
	background: url("../images/navigation/products_off.png") no-repeat 0 0;
}

#products_nav:hover{
	background-image: url("../images/navigation/products_on.png");
}

#services_nav{
	display: block;
	width: 110px;
	height: 65px;
	background: url("../images/navigation/services_off.png") no-repeat 0 0;
}

#services_nav:hover{
	background-image: url("../images/navigation/services_on.png");
}

#about_nav{
	display: block;
	width: 111px;
	height: 65px;
	background: url("../images/navigation/about_off.png") no-repeat 0 0;
}

#about_nav:hover{
	background-image: url("../images/navigation/about_on.png");
}

#contact_nav{
	display: block;
	width: 120px;
	height: 65px;
	background: url("../images/navigation/contact_off.png") no-repeat 0 0;
}

#contact_nav:hover{
	background-image: url("../images/navigation/contact_on.png");
}