Let me ask another question about the sample orbit app todo.
I want to know why there are $$s not $.
<title>To-do List</title>
<script type="text/_javascript_" src="" '/jquery-1.2.3.min.js' }"></script>
function set_callbacks() {
$$(".remove").click(function () {
$$("#items>[item_id=" + $$(this).attr("item_id") +"]").slideUp("slow");
$$("#items").load("$link{ '/remove/'}" + $$(this).attr("item_id"), {},
function () { set_callbacks(); });
$$(".item").click(function () {
$$.post("$link{ '/toggle/' }" + $$(this).attr("item_id"), {});
$$(document).ready(function () {
$$("#add").submit(function () {
$$("#button").attr("disabled", true);
$$("#items").load("$link{ '/add' }", { item: $$("#title").val() },
function () { $$("#title").val(""); set_callbacks();
$$("#button").attr("disabled",false); });