function checkCity() {
	var cityInput  = document.moteur.cityName;

	if (cityInput.value != "") {
		return true;
	} else {
		alert("Veuillez préciser la ville de destination");
		return false;
	}
}

function updateCityInput() {
	var citySelect    = document.moteur.citySelect;
	var cityInput     = document.moteur.cityName;
	var countryInput  = document.moteur.countryName;
	var tbCountryCity = document.moteur.citySelect.value.split('§');

	if (citySelect.value != "empty" && citySelect.value != "C") {
		cityInput.value    = tbCountryCity[1];
		countryInput.value = tbCountryCity[0];
	}
}
function clearCitySelect() {
	var citySelect    = document.moteur.citySelect;
	var cityInput     = document.moteur.cityName;
	
	if (cityInput.value != "" && citySelect.value != "empty") {
		citySelect.value = "empty";
	}
}