Rule of Thirds bookmarklet

bookmarklet.js

(function(){

  // the minimum version of jQuery we want
	var v = "1.3.2";

	// check prior inclusion and version
	if (window.jQuery === undefined || window.jQuery.fn.jquery < v) {
		var done = false;
		var script = document.createElement("script");
		script.src = "http://ajax.googleapis.com/ajax/libs/jquery/" + v + "/jquery.min.js";
		script.onload = script.onreadystatechange = function(){
			if (!done && (!this.readyState || this.readyState == "loaded" || this.readyState == "complete")) {
				done = true;
				initMyBookmarklet();
			}
		};
		document.getElementsByTagName("head")[0].appendChild(script);
	} else {
		initMyBookmarklet();
	}
	
	function initMyBookmarklet() {
		(window.myBookmarklet = function() {
var $ = jQuery;

     $('head').append('<style type="text/css">div.imgWrapper {position: relative; display: inline-block;} div.imgWrapper:before { background:url("http://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Photo_3x3.svg/500px-Photo_3x3.svg.png"); background-size: 100% 100%; background-repeat:no-repeat; width:100%; height: 100%; z-index: 3; top:0; left:0; position: absolute; content: " "; } </style>');
    $('img').wrap('<div class="imgWrapper" />');

		})();
	}

})();

index.html

javascript:(function(){var s = document.createElement('script');s.src = 'http://dl.dropbox.com/u/5045906/imagesbookmarklet/bookmarklet.js';document.body.appendChild(s);})();

rule_of_thirds.js

var $ = jQuery;

     $('head').append('<style type="text/css">div.imgWrapper {position: relative; display: inline-block;} div.imgWrapper:before { background:url("http://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Photo_3x3.svg/500px-Photo_3x3.svg.png"); background-size: 100% 100%; background-repeat:no-repeat; width:100%; height: 100%; z-index: 3; top:0; left:0; position: absolute; content: " "; } </style>');
    $('img').wrap('<div class="imgWrapper" />');