//: Form checking fuctions
// (c)2001 by aurius media studio

function isValidEmail(email) {
	re = new RegExp("^[A-Za-z0-9-_\\.]+@([A-Za-z0-9-_]+\\.)+[A-Za-z0-9]{2,3}$");
	if (email.value.length > 0 && !re.test(email.value)) {
		email.select();
		return false;
	} else return true;
}

function isEmpty(input) {
	if (input.value.length > 0) return false;
	else {
		input.focus();
		return true;
	}
}

function notChecked(input) {
	if (input.length) {
		var result = true;
		for (var i = 0; i < input.length; i++) result &= !input[i].checked;
		return result;
	} else if (input.checked) return false;
	else return true;
}

function notSelected(select) {
	if (select.selectedIndex > 0) return false;
	else {
		select.focus();
		return true;
	}
}