//Form Validation
function chkemail(frmIn)	{
	var errmsg = "Incorrect or invalid ";
	with(frmIn)	{
		if((email.value=='') || (!verifyemail(email.value))) errmsg += 'Email address\n';
		
	}
	if(errmsg != "Incorrect or invalid ")	{
		alert(errmsg);
		return false;
	}
}

//validates an email address
function verifyemail(emailaddress)	{
	var emailReg = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+[A-Za-z0-9]$"; 
	var emailexp = new RegExp(emailReg);
	return (emailexp.test(emailaddress));
}