function checkinput(){
	if (document.joinclubsubmit.first_name.value == ""){
		alert("Please enter your first name.")
		document.joinclubsubmit.first_name.focus();
		return false;
	}
	if (document.joinclubsubmit.last_name.value == ""){
		alert("Please enter your last name.")
		document.joinclubsubmit.last_name.focus();
		return false;
	}
	if (document.joinclubsubmit.email_address.value == ""){
		alert("Please enter your email address.")
		document.joinclubsubmit.email_address.focus();
		return false;
	}
	document.joinclubsubmit.submit();
}