function isValidPhone(phone_obj) {
	if (typeof(phone_obj) == "undefined") return false;
	phone_str = phone_obj.value;
	var stripped = phone_str.replace(/[\(\)\.\-\ ]/g, '');
	if (stripped.length < 10) return false;
	return true;
}

function isValidEmail(email_obj) {
	if (typeof(email_obj) == "undefined") return false;
	email_str = email_obj.value;
	return (email_str.indexOf(".") > 2) && (email_str.indexOf("@") > 0);
}

function isValidMenu(select_obj) {
	if (select_obj.selectedIndex == 0) return false;
	return true;
}  

function isFilled(field_obj) {
	if (typeof(field_obj) == "undefined") return false;
	field_str = field_obj.value;
	var stripped = field_str.replace(/[\s]/g, '');
	if (stripped.length == 0) return false;
	return true;
}