/**
 * rider.js
 * verson: 1.0 2014.3.18
 * made by rider (xushaowei)
 *
 ***************** Before Use Configure in html ***********************
 * type one total of 4 steps:
 *    <script src="j/lib/jquery-development.js"></script> // 1
 *    <script> // 2
 *      // plugins's base path
 *      var baseUrl = 'j/plugins/'; // your plugins's path
 *    </script>
 *    <script src="j/rider.js"></script> // 3 load rider.js
 *    use rider.js in your js like this: // 4
 *      rd.use('jump', callback) or
 *      requires('jump'); callback();
 * type two total of 3 steps:
 *    <script> // 1
 *      var baseUrl = 'j/plugins/' // your plugins's path
 *      ,jquerySrc = 'j/lib/jquery-development.js'; // your jquery.js's path and name
 *    </script>
 *    <script src="j/rider.js"></script>// 2
 *    use rider.js in your js like this: //3
 *      rd.ready(function() {
 *        rd.use('jump', callback) or
 *        requires('jump'); callback();
 *      });
 ***************** Use Example **********************
 *
 * use example one: 
 *    for only used once
 *    rd.use(plugins, fun, fun1, ...)
 * use example two:
 *    for repeated use
 *    requires(plugins); fun(); fun1(); ...
 * use example three:
 *    rd.use(['fileName', 'plugins1', 'plugins2&css'], fun1, fun2,...)
 *
 ***************** Params **********************
 *
 * @param plugins {string} js like this:'plugins1, plugins2, ...';
 *    css like this: 'plugins1.css, plugins2.css';
 *    js&css like this: 'plugins1&css';
 *
 * @param plugins {array} like ['fileName', 'plugins1', 'plugins2&css', 'plugins3.css']
 *    if fileName != '', then rider.js will load from the folder which name is fileName
 *
 * @param callback {function} which rely on plugins
 *
**/