Synchronous view creation

create-view.js

/*
 * create-view.js
 *     Easily create new views for accessing clean builtins, etc.
 *
 * 2011-10-11
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */

var create_view = function() {
	"use strict";

	var
		  doc = document
		, doc_el = doc.documentElement
		, frame = doc.createElementNS("http://www.w3.org/1999/xhtml", "iframe")
		, id = Math.random()
		, url
		, view
	;

	frame.name = id;
	doc_el.appendChild(frame);
	view = open("about:blank", id);
	doc_el.removeChild(frame);

	return view;
};

get-builtin.js

// example: Object.builtin("Array").prototype.slice instead of Array.prototype.slice, which may be overwritten
Object.builtin = function(name) {
	return create_view()[name];
};