document.write.jquery

/*
---
source: http://gist.github.com/133677

provides: document.write
description: jQuery based document.write replacement
requires: jQuery

authors: 
	- Thomas Aylott -- SubtleGradient.com
	- Ryan Florence -- ryanflorence.com
	
thanks: Daniel Steigerwald -- daniel.steigerwald.cz
license: MIT
...
*/

(function($, document){

	var wrapper  = $('<div/>'),
		fragment = document.createDocumentFragment();

	document._writeOriginal = document.write;
	document.write = function(){
		var args = arguments, id = 'document_write' + $time().toString(36);
		if (!$.isReady)
			document._writeOriginal('<span id="' + id + '"></span>');
		else
			id = $('<span/>',{id:id}).appendTo(document.write.context);

		function documentWrite(){
			var html = Array.join(args, '');
			$(function(){
				Array.filter(wrapper.html(html)[0].childNodes, document.write.filter).each(function(node){
					fragment.appendChild(node);
				});
				(id = $(id)[0]).parentNode.replaceChild(fragment, id);
			});
		}

		setTimeout(documentWrite, 0);
	};
	document.write.context = document.body;
	document.write.filter = function(el){ return true; };

})(jQuery, document);

document.write.moo.js

/*
---
source: http://gist.github.com/133677

provides: document.write
description: MooTools based document.write replacement
requires: MooTools

author: Thomas Aylott -- SubtleGradient.com
thanks: Daniel Steigerwald -- daniel.steigerwald.cz
license: MIT
...
*/
(function($){
	
	var wrapper  = new Element('div'),
		fragment = document.createDocumentFragment();
	
	document._writeOriginal = document.write;
	document.write = function(){
		var args = arguments, id = 'document_write' + $time().toString(36);
		if (!Browser.loaded)
			document._writeOriginal('<span id="' + id + '"></span>');
		else
			id = new Element('span',{id:id}).inject(document.write.context);
		
		function documentWrite(){
			var html = Array.join(args, '');
			document.addEvent('domready', function(){
				Array.filter(wrapper.set('html', html).childNodes, document.write.filter).each(function(node){
					fragment.appendChild(node);
				});
				(id = $(id)).parentNode.replaceChild(fragment, id);
			});
		}
		
		setTimeout(documentWrite, 0);
	};
	document.write.context = document.body;
	document.write.filter = function(el){ return true; };
	
})(document.id||window.$);

document.write.usage.moo.js

// USAGE EXAMPLES //


var start = +new Date;
var i = 1000; while (i--) {
	document.write(i+' ');
}
var end = +new Date;
alert(end-start);


window.addEvent('domready',function(){

	document.write('Lorem ipsum dolor sit amet');

	var myDiv = new Element('div');
	document.write.context = myDiv;
	document.write('Lorem ipsum dolor sit amet');
	myDiv.inject(document.body,'top');
	
});

document.write(1,2,3,4); // handles multiple arguments

document.write(); // doesn't break
document.write(null);

// Add a filter to stop certain things from being injected into your page
document.write.filter = function(el){
	return el && !$try(function(){ return el.get('tag') == 'link' })
};

document.write('<link rel="stylesheet" href="http://gist.github.com/stylesheets/gist/embed.css"/>');