gistfile1.js

(function(global) {
    global.def = function define(name, dependencies, moduleFactory) {
        global.amdModules = global.amdModules || {};

        if (Object.prototype.toString.call(dependencies) != '[object Array]' && typeof dependencies !== 'function')
            throw new Error('dependencies must be an array. moduleFactory must be a function.');

        global.amdModules[name] = {
            'moduleFactory': moduleFactory || dependencies,
            'dependencies': typeof (moduleFactory) === 'undefined' ? [] : dependencies
        };
    };

    global.req = function require(name) {
        var module = global.amdModules[name],
              deps = [];
        if (typeof module === 'undefined') {
            throw "Module " + name + " could not be found";
        }
        if (module.cached) return module.cached;

        for (var i = 0; i < module.dependencies.length; i++) {
            deps.push(requireAmd(module.dependencies[i]));
        }

        module.cached = module.moduleFactory.apply(this, deps);
        return module.cached;
    };

})(window);