function changeNumberParticipants() {
	var number;
	var i;
	var obj;

	number = document.getElementById("NumPpl").value;
	i = 2;
	while(i <= 5) {
		obj = document.getElementById("Name"+i);
		if (i<=number) {
			obj.style.display = "";
		} else {
			obj.style.display = "none";
		}
		i = i + 1;
	}
}

function menuOff(id) {
	document.getElementById(id).color="";
}