// JavaScript Document
<!--
//Comprobamos si se introducen los datos en caso de que el cliente no esté registrado	
function comprobar_datos() {
	if (document.form_reserva.nombre.value == "") {
		alert("You must enter a name"); document.form_reserva.nombre.focus();
		return true;
	}

	if (document.form_reserva.email.value.indexOf("@", 0) && document.form_reserva.email.value.indexOf('.', 0) == -1) {
		alert("E-mail is not correct"); document.form_reserva.email.focus();
		return true;
	}

	if (isNaN(document.form_reserva.telefono.value) || document.form_reserva.telefono.value == '') {
		alert("Telephone number is not correct"); document.form_reserva.telefono.focus(); 
		return true;
	}


	if(document.form_reserva.llegada.value == "") {
		alert("You must enter the arrival date"); document.form_reserva.llegada.focus();
		return true;
	}
	
	if(document.form_reserva.salida.value == "") {
		alert("You must enter the departure date"); document.form_reserva.salida.focus();
		return true;
	}

	if (isNaN(document.form_reserva.parcelas.value)) {
		alert("Pitches has to be a number"); document.form_reserva.parcelas.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.adultos.value)) {
		alert("Adults has to be a number"); document.form_reserva.adultos.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.coches.value)) {
		alert("Cars has to be a number"); document.form_reserva.coches.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.caravanas.value)) {
		alert("Caravan has to be a number"); document.form_reserva.caravanas.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.tiendas_fami.value)) {
		alert("Large tents has to be a number"); document.form_reserva.tiendas_fami.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.ninos.value)) {
		alert("Children has to be a number"); document.form_reserva.ninos.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.motos.value)) {
		alert("Motorcycle has to be a number"); document.form_reserva.motos.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.autocaravana.value)) {
		alert("Motorhome has to be a number"); document.form_reserva.autocaravana.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.tiendas_indi.value)) {
		alert("Small tents has to be a number"); document.form_reserva.tiendas_indi.focus(); 
		return true;
	}

	if (isNaN(document.form_reserva.perros.value)) {
		alert("Dogs has to be a number"); document.form_reserva.perros.focus(); 
		return true;
	}

	return false;
}
// -->