function validinquiry()
{
	var name=document.getElementById("name").value;
	var email=document.getElementById("email").value;
	var nationality=document.getElementById("nationality").value;
	var arrival_date=document.getElementById("arrival_date").value;
	var departure_date=document.getElementById("departure_date").value;
	var length_stay=document.getElementById("length_stay").value;
	var number_room=document.getElementById("number_room").value;
	var room_type=document.getElementById("room_type").value;
	var airport_pickup=document.getElementById("airport_pickup").value;
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if (name=="")
	{
	alert("Please Input FirsName LastName");
	document.getElementById("name").focus();
	return false;
	}
	else if (email=="")
	{
	alert("Please Input Email");
	document.getElementById("email").focus();
	return false;
	}
	else if(!(email.match(emailExp)))
	{
	alert ("Email invalid");
	document.getElementById("email").value="";
	document.getElementById("email").focus();
	return false;
	}
	else if (nationality=="")
	{
	alert("Please Input Nationality");
	document.getElementById("nationality").focus();
	return false;
	}
	else if (arrival_date=="")
	{
	alert("Please Selecte Arrival Date");
	document.getElementById("arrival_date").focus();
	return false;
	}
	else if (departure_date=="")
	{
	alert("Please Selecte Departure Date");
	document.getElementById("departure_date").focus();
	return false;
	}
	else if (length_stay=="")
	{
	alert("Please Input Length Stay");
	document.getElementById("length_stay").focus();
	return false;
	}
	else if (number_room=="")
	{
	alert("Please Input Number Room");
	document.getElementById("number_room").focus();
	return false;
	}
	else if ( room_type=="00" )  
		{
		alert("Please Select Room Type");
		document.getElementById("room_type").focus();
		return false;
		}
	else if ( airport_pickup=="00" )  
		{
		alert("Please Select Airport");
		document.getElementById("airport_pickup").focus();
		return false;
		}
	else
	{
	return true;
	}
} /* end function valid member*/