Asset Manager
Goal: To easily include and manage assets (js, css, etc) for a web application.

Example: xbreadcrumbs package files..
./public/assets/xbreadcrumbs/images/separator.gif
./public/assets/xbreadcrumbs/images/home.gif
./public/assets/xbreadcrumbs/xbreadcrumbs.css
./public/assets/xbreadcrumbs/xbreadcrumbs.js
# our custom files (explained below)
./public/assets/xbreadcrumbs/custom.css
./public/assets/xbreadcrumbs/onload.js
./public/assets/xbreadcrumbs/config.php

----

File: ./assets/xbreadcrumbs/config.php
This provides a fluent interface to add CSS/JS files that will append </HEAD> using Zend's head* view helpers...
<?php
$assetManager->addCssFile('xbreadcrumbs.css');
$assetManager->addCssFile('custom.css'); // override classes, add custom styles, etc
$assetManager->addJsFile('xbreadcrumbs.js');
?>

----

File: ./assets/xbreadcrumbs/onload.js
The asset manage will consume all onload.js files for all assets and put them into a single $(function(){...}) statement/file.
$('#crumbs').xbreadcrumbs({});

Result: File: ./assets/assets.compiled.js
$(function(){
    $('#crumbs').xbreadcrumbs({}); // xdebug
    // all other assets onload.js
});

----

File: APPLICATION LAYOUT.PHTML
<?php
$this->_assetManager->load('xbreadcrumbs');
?>