function checkWholeForm(newsletter) {
	var why = "";

		why += isEmpty(newsletter.first_name.value, "FIRST NAME");
		if (why != "") {
			alert(why);
			newsletter.first_name.focus();
			return false;
		}
		why += isEmpty(newsletter.last_name.value, "LAST NAME");
		if (why != "") {
			alert(why);
			newsletter.last_name.focus();
			return false;
		}
			
		why += checkEmail(newsletter.email.value, "EMAIL ADDRESS");
		if (why != "") {
		alert(why);
		newsletter.email.focus();
		return false;
		}
			
	return true;
}