function validate (f) {
	e='';
	if (f.elements[0].value.match (/^[\s]*$/)) {
		e+='First name must be filled in.\n';
	}
	if (f.elements[1].value.match (/^[\s]*$/)) {
		e+='Last name must be filled in.\n';
	}
	if (f.elements[7].value.match (/^[\s]*$/) || !(f.elements[7].value.match (/^[_\.0-9a-z-]+@([0-9a-z\-_]+\.)+[a-z]{2,3}$/gi))) {
		e+='E-mail must be filled in correctly.\n';
	}
	if (e.match (/^[\s]*$/)) {
		return true;
	} else {
		alert (e);
		return false;
	}
}