Minimal JavaScript loader

minimal-scriptloader.js

(function(win) {
  "use strict";
  win.jaz = win.jaz || {};
  win.jaz.scriptLoader = function(src, cb) {
    var script = document.createElement('script');
    script.src = src;
    script.type = 'text/javascript';
    document.getElementsByTagName('head')[0].appendChild(script);
    script.onload = cb;
  };
}(window));