function validateForm()
{
	var f = document.forms[0];
	
	if (f.FirstName.value == "")
	{
		alert("Please enter your first name.");
		f.FirstName.focus();
		return false;
	}

	if (f.LastName.value == "")
	{
		alert("Please enter your last name.");
		f.LastName.focus();
		return false;
	}

	if (f.Phone.value == "")
	{
		alert("Please enter your phone number.");
		f.Phone.focus();
		return false;
	}

	if (!isEmail(f.Email.value))
	{
		alert("Please enter a valid email address.");
		f.Email.focus();
		return false;
	}
	
	return true;
}

function submitForm()
{
	if (!validateForm()) return;
	
	document.forms[0].submit();
}