function setActive (id) {

	document.getElementById('aHotel').className="";
	document.getElementById('aFlights').className="";
	document.getElementById('aRentals').className="";
	
	if (id == 1)
		document.getElementById('aHotel').className="active";
	else if (id == 2)
		document.getElementById('aFlights').className="active";
	else if (id == 3)
		document.getElementById('aRentals').className="active"
}