function validate() {

	if (document.onlineform.realname.value=="") {
		alert("Please provide your name.");
		document.onlineform.realname.focus();
		return false;
	}

	if (document.onlineform.nationality.value=="") {
		alert("Please indicate your nationality.");
		document.onlineform.nationality.focus();
		return false;
	}

	if (document.onlineform.email.value=="") {
		alert("Please provide your e-mail address.");
		document.onlineform.email.focus();
		return false;
	}
	
}