function isNullOrEmpty(value)
{
    return (value == null || value == '')
}


function validateAgeGateForm()
{
	
	if (isNullOrEmpty(document.regform.birthmonth.value))
    {
		alert('Please enter your full date of birth.');
		document.regform.birthmonth.focus();
		return false;
	}
	
	if (isNullOrEmpty(document.regform.birthday.value))
    {
		alert('Please enter your full date of birth.');
		document.regform.birthday.focus();
		return false;
	}
	
	if (isNullOrEmpty(document.regform.birthyear.value))
    {
		alert('Please enter your full date of birth.');
		document.regform.birthyear.focus();
		return false;
	}
	



	
    return true;
}