function hideRooms() {
	if (document.getElementById) {
		for (i = 1; i <= 11; i++ ) {
			document.getElementById("room" + i ).style.visibility = "hidden";
			document.getElementById("room" + i ).style.position = "absolute";
		}
	}
}

function showRoom(roomNo) {
	if (document.getElementById) {
	
	
	}
}