function checkFields() {
	if (document.dets.name.value=="") {
		alert("Please enter your name.");
		document.dets.name.focus();
		return(false);
	}
	if (document.dets.surname.value=="") {
		alert("Please enter your surname.");
		document.dets.surname.focus();
		return(false);
	}
	if (document.dets.number.value=="") {
		alert("Please enter your prefered contact number.");
		document.dets.number.focus();
		return(false);
	}
	if (document.dets.email.value=="") {
		alert("Please enter your email address.");
		document.dets.email.focus();
		return(false);
	}
	return(true);
}