require.js

/**
* Shim the require function used in node.js
*/

(function() {
	if (window.require !== undefined)
		throw 'RequireException: \'require\' already defined in global scope';

	window.require = function(module) {
		var url = window.require.resolve(module);

		if(window.require.cache.hasOwnProperty(url))
			return window.require.cache[url];

		var request = new XMLHttpRequest();
		var exports;

		request.open('GET', url, false);
		request.send();

		try {
			eval(
				"(function() {" +
					request.response +
				"})();"
			);
		} catch(e) {
			console.error("Error loading "+module);
			console.error(e);
		}

		window.require.cache[url] = exports;
		return exports;
	}

	window.require.resolve = function(module) {
		var r = module.match(/^(\.{0,2}\/)?([^\.]*)(\..*)?$/);
		return (r[1]?r[1]:'./')+r[2]+(r[3]?r[3]:(r[2].match(/\/$/)?'index.js':'.js'));
	}

	// INFO initializing module cache
	window.require.cache = {};
})();

fixed cache, fixed loading modules without exports, fixed indenting