function check_enquiry()
{
	var ch=0;
	for (i=0;i<document.form1.room_type.length;i++)
	{
		if (document.form1.room_type[i].checked) ch=1;
	}
	if (ch == 0)
	{
		alert("Please select the room_type");
		return false;
	}

	if (form1.total_man.value == "")
	{
		alert("Please tell us how many people will live in this apartment");
		return false;
	}


	if ((form1.arrive_day.value == "") || (form1.arrive_month.value == "") || (form1.arrive_year.value == ""))
	{
		alert("Please select the arrive date");
		return false;
	}

	var today_Year,today_Day,today_Month;
	var today;
	today = new Date();
	today_Year = today.getYear();
	today_Month = today.getMonth()+1;
	today_day = today.getDate();

	if (form1.arrive_year.value < today_Year)
	{
		alert ("The arrive date is mistaken");
		return false;
	}

	if (form1.arrive_year.value == today_Year)
	{
		if (form1.arrive_month.value < today_Month)
		{
			alert ("The arrive date is mistaken");
			return false;
		}
	}

	if(form1.arrive_year.value == today_Year && form1.arrive_month.value == today_Month)
	{
		if (form1.arrive_day.value < today_day)
		{
			alert ("The arrive date is mistaken");
			return false;
		}
	}

	if ((form1.leave_day.value == "") || (form1.leave_month.value == "") || (form1.leave_year.value == ""))
	{
		alert("Please select the departure date");
		return false;
	}

	if (form1.leave_year.value < form1.arrive_year.value)
	{
		alert("The departure date is mistaken ");
		return false;
	}


	if (form1.leave_year.value == form1.arrive_year.value)
	{
		if (form1.leave_month.value == form1.arrive_month.value)
		{
			if (form1.leave_day.value <= form1.arrive_day.value)
			{
				alert("The departure date is mistaken");
				return false;
			}
		}
	}

	if (form1.sex.value == "")
	{
		alert("Please select the title");
		return false;
	}

	if (form1.familyName.value == "")
	{
		alert("Please fill in your Family name");
		return false;
	}

	if (form1.firstName.value == "")
	{
		alert("Please fill in your First name");
		return false;
	}

	if (form1.email.value == "")
	{
		alert("Please fill in your Email");
		return false;
	}
}

function check_recommend()
{
	if (form1.fromemail.value == "")
	{
		alert("Please fill in your Email");
		return false;
	}

	if (form1.email2.value == "")
	{
		alert("Please fill in the Email of your friend");
		return false;
	}

	if (form1.message.value == "")
	{
		alert("Please fill in your message");
		return false;
	}
}

function check_question()
{
	if (form1.question.value == "")
	{
		alert("Please fill in your question");
		return false;
	}

	if (form1.name.value == "")
	{
		alert("Please fill in your name");
		return false;
	}


	if (form1.email.value == "")
	{
		alert("Please fill in your Email");
		return false;
	}
}