function emailCheck(emailStr)
{
	// NO NEED TO CHANGE ANY OF THIS FUNCTION!!
	var checkTLD=1;
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	var emailPat=/^(.+)@(.+)$/;
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]/";
	var validChars="\[^\\s" + specialChars + "\]";
	var quotedUser="(\"[^\"]*\")";
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	var atom=validChars + '+';
	var word="(" + atom + "|" + quotedUser + ")";
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	var matchArray=emailStr.match(emailPat);

	if (matchArray==null)
	{
		alert("Email address seems incorrect (check @ and .'s)");
		return false;
	}

	var user=matchArray[1];
	var domain=matchArray[2];

	for (i=0; i<user.length; i++)
	{
		if (user.charCodeAt(i)>127)
		{
			alert("Ths username contains invalid characters.");
			return false;
		}
	}

	for (i=0; i<domain.length; i++)
	{
		if (domain.charCodeAt(i)>127)
		{
			alert("Ths domain name contains invalid characters.");
			return false;
		}
	}

	if (user.match(userPat)==null)
	{
		alert("The username doesn't seem to be valid.");
		return false;
	}

	var IPArray=domain.match(ipDomainPat);

	if (IPArray!=null)
	{
		for (var i=1;i<=4;i++)
		{
			if (IPArray[i]>255)
			{
				alert("Destination IP address is invalid!");
				return false;
			}
		}
		return true;
	}

	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;

	for (i=0;i<len;i++)
	{
		if (domArr[i].search(atomPat)==-1)
		{
			alert("The domain name does not seem to be valid.");
			return false;
		}
	}

	if (checkTLD && domArr[domArr.length-1].length!=2 && domArr[domArr.length-1].search(knownDomsPat)==-1)
	{
		alert("The address must end in a well-known domain or two letter " + "country.");
		return false;
	}

	if (len<2)
	{
		alert("This address is missing a hostname!");
		return false;
	}

	return true;
	// DO NOT CHANGE ANY OF ABOVE!!
}

function stripNonNumbers (InString)
{
	// DO NOT CHANGE ANY OF CODE BELOW!!
	OutString="";
	for (Count=0;Count<InString.length;Count++)
	{
		TempChar=InString.substring (Count,Count+1);
		Strip=false;
 		CharString="0123456789";
		for (Countx=0;Countx<CharString.length;Countx++)
		{
			StripThis=CharString.substring (Countx,Countx+1)
			if (TempChar==StripThis)
			{
				Strip=true;
				break;
			}
		}
		if (Strip)
		OutString=OutString+TempChar;
	}
	return (OutString);
	// DO NOT CHANGE ABOVE CODE
}

function validateForm()
{
	if(document.BCIE.Surname.value=="")
	{
		alert("You haven't input your Surname");
		document.BCIE.Surname.focus();
		return;
	}

	if(document.BCIE.Name.value=="")
	{
		alert("You haven't input your Name");
		document.BCIE.Name.focus();
		return;
	}

	if (document.BCIE.Gender.value=="")
	{
		alert("You haven't input your Gender");
		document.BCIE.Gender.focus();
		return;
	}

	if (document.BCIE.day.value=="")
	{
		alert("You haven't input your Date of Birth");
		document.BCIE.day.focus();
		return;
	}
	if (document.BCIE.month.value=="")
		{
			alert("You haven't input your Date of Birth");
			document.BCIE.month.focus();
			return;
	}
	if (document.BCIE.year.value=="")
		{
			alert("You haven't input your Date of Birth");
			document.BCIE.year.focus();
			return;
	}
	if (document.BCIE.Nationality.value=="")
		{
			alert("You haven't input your Nationality");
			document.BCIE.Nationality.focus();
			return;
	}

	document.BCIE.Telephone_Home.value = stripNonNumbers(document.BCIE.Telephone_Home.value);

	document.BCIE.Fax_Home.value = stripNonNumbers(document.BCIE.Fax_Home.value);

	if(document.BCIE.Telephone_Home.value.length<6)
	{
		alert("Please check your telephone number .\nFull international preferred eg:0044308761234");
		document.BCIE.Telephone_Home.focus();
		return;
	}

	if (document.BCIE.email.value.length>0)
	{
		if(!emailCheck(document.BCIE.email.value))
		{
			document.BCIE.email.focus();
			return;
		}
	}
	else
	{
		alert("You haven't input your email address");
		document.BCIE.email.focus();
		return;
	}
	if (document.BCIE.Nationality.length<3)
	{
		alert("You haven't input your Nationality.");
		document.BCIE.nationality.focus();
		return;
	}
	document.BCIE.submit();
}