text: importScripts("Document.js");
  importScripts("DOMTokenList.js");
  importScripts("Element.js");
  importScripts("HTMLDocument.js");
  importScripts("HTMLElement.js");
  importScripts("Window.js");
  
  this.setImmediate = Window.prototype.setImmediate;
  this.setTimeout = Window.prototype.setTimeout;
  this.setInterval = Window.prototype.setInterval;
  this.clearImmediate = Window.prototype.clearImmediate;
  this.clearTimeout = Window.prototype.clearTimeout;
  this.clearInterval = Window.prototype.clearInterval;