function checkForm()
{
	if(document.interView.name.value =="")
	{	alert("input your name");
		document.interView.name.focus();
		return false;
	}
	
	if(document.interView.address.value == "")
	{	alert("input your address");
		document.interView.address.focus();
		return false;
	}
	
	if(document.interView.tel.value == "")
	{	alert("input your phone number");
		document.interView.tel.focus();
		return false;
	}
	
	if(document.interView.tel.value.search(/[^\d\-]/i) != -1)
	{	alert("Numbers except the figure and - is included in the telephone number");
		document.interView.tel.focus();
		return false;
	}
	if(document.interView.tel.value.length <=9)	
	{	alert("The telephone number is too short (from the area code)");
		document.interView.tel.focus();
		return false;
	}
	
	if(document.interView.comment.value.length > 200)	
	{	alert("The content of the inquiry exceeds 200 characters");
		document.interView.comment.focus();
		return false;
	}
	
	return true;
}