.nav-piece {
	z-index:4;
}

/* START NAV */

.nav1 {
	background:url(../images/nav1.png) no-repeat;
	z-index:5;
}

.nav1:hover {
	background:url(../images/nav1-over.png) no-repeat;
	z-index:5;
}

.nav2 {
	background:url(../images/nav2-bottom.png) no-repeat;
	z-index:3;
}

.nav2:hover {
	background:url(../images/nav2-bottom-over.png) no-repeat;
	z-index:3;
}

.nav3 {
	background:url(../images/nav3-bottom.png) no-repeat;
	z-index:2;
}

.nav3:hover {
	background:url(../images/nav3-bottom-over.png) no-repeat;
	z-index:2;
}

.nav4 {
	background:url(../images/nav4-bottom.png) no-repeat;
	z-index:1;
}

.nav4:hover {
	background:url(../images/nav4-bottom-over.png) no-repeat;
	z-index:1;
}