simple-loader.js

function loadScript(url, callback) {
	var script = document.body.appendChild(document.createElement("script"));
	script.onload = callback;
	script.src = url;
}
function loadScripts(scripts, callback) {
	dependencies.reverse().reduce(function(next, url) {
		return loadScript.bind(null, url, next);
	}, callback)();
}