function CheckRequiredFieldsmenuGR(thisform) {
	var testresult = true;

	var dayArrival = document.onlineGR.dayArrival.value;
	var monthArrival = document.onlineGR.monthArrival.value;
	var yearArrival = document.onlineGR.yearArrival.value;
	var dayDepar = document.onlineGR.dayDepar.value;
	var monthDepar = document.onlineGR.monthDepar.value;
	var yearDepar = document.onlineGR.yearDepar.value;
	
	//alert(monthArrival)
	var arrivaldate=new Date()
	arrivaldate.setFullYear(yearArrival,monthArrival,dayArrival)
	//alert(arrivaldate)

	var departuredate=new Date()
	departuredate.setFullYear(yearDepar,monthDepar,dayDepar)
	//alert(departuredate)

	if (arrivaldate>departuredate){
		alert("Η ημερομηνία αναχώρησης δεν μπορεί να είναι νωρίτερα από την ημερομηνία άφιξης"),
		testresult = false;
		return testresult;
	}

}

function CheckRequiredFieldsmenuEN(thisform) {
	var testresult = true;

	var dayArrival = document.onlineGR.dayArrival.value;
	var monthArrival = document.onlineGR.monthArrival.value;
	var yearArrival = document.onlineGR.yearArrival.value;
	var dayDepar = document.onlineGR.dayDepar.value;
	var monthDepar = document.onlineGR.monthDepar.value;
	var yearDepar = document.onlineGR.yearDepar.value;
	
	//alert(monthArrival)
	var arrivaldate=new Date()
	arrivaldate.setFullYear(yearArrival,monthArrival,dayArrival)
	//alert(arrivaldate)

	var departuredate=new Date()
	departuredate.setFullYear(yearDepar,monthDepar,dayDepar)
	//alert(departuredate)

	if (arrivaldate>departuredate){
		alert("The arrival date can not be sooner than the departure date"),
		testresult = false;
		return testresult;
	}

}