function validate(form) {
	var e = form.elements, m = '';
	
	if(!e['first_name'].value) {
		m += '- Please complete First Name field.\n';
	}
	if(!e['last_name'].value) {
		m += '- Please complete in Last Name field.\n';
	}
	if(!e['email'].value) {
		m += '- Please complete in E-Mail field.\n';
	}
	if(m) {
		alert('The following error(s) occurred:\n\n' + m);
		return false;
	}
	return true;
}