Source for "InYoFacebookToo"

// ==UserScript==
// @name          InYoFacebookToo
// @description   Enlarges pictures when you roll over them
// @include       http://*facebook.com*
// ==/UserScript==
//
// By: Ian Williams (Original Code by Justin Rosenthal)
// Email: iamtotus@gmail.com
// Last Update:  3.9.2007

var allImages, thisImage;
var globalTimer;

allImages = document.evaluate(
	'//img',
	document,
	null,
	XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
	null);

// Holds paths of all the enlarged images
imgArray = new Array( allImages.snapshotLength * 2);




var i=0;

while (i < allImages.snapshotLength) {


	thisImage = allImages.snapshotItem(i);

	// Example of photo src     -->     03/31/2006
	// http://photos-420.facebook.com/images/profile/628/72/t9999999_99999.jpg
	// want to change the 't' to an 'n' for large image
	var src = thisImage.src;

	var path = src.substring( 0, src.lastIndexOf('/') + 1 );
	var fileName = 'n' + src.substring( src.lastIndexOf('/') + 2, src.length );

	var fish = src.substring(src.lastIndexOf('/') + 1, src.length);
	if(fish.search('n') > -1) {
		i++;
		continue;
	}


	thisImage.alt = i;
	imgArray[i] = path + fileName;
	imgArray[i + allImages.snapshotLength] = src;

	var newDiv = document.createElement('div');
	var html = "<div id='t" + i + "' class='tip'><img src='" + path + fileName + "'></div>";
	newDiv.innerHTML = html;
	document.body.appendChild(newDiv);

	thisImage.addEventListener(
		'mouseover',
		function(event) {
			var z = 't' + this.alt;
			globalTimer = window.setTimeout(
				function() { popUp(z); },
				500);
		},
		true);


	thisImage.addEventListener(
		'mouseout',
		function(event) {
			window.clearTimeout(globalTimer);
			document.getElementById('t' + this.alt).style.visibility = "hidden";
		},
		true);
	


	i++;
}


function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}

addGlobalStyle('.tip {font:10px/12px Arial,Helvetica,sans-serif;border:0;padding:3px 3px 1px 3px;visibility:hidden;position:fixed;z-index:100;color:#333333;top:20px;left:90px;background-color:#3B5998;}');
addGlobalStyle('.tip img {border:2px solid white;}');

function popUp(oi) {
	objStyle = document.getElementById(oi).style;
	objStyle.visibility = "hidden";
	objStyle.left = '5px';
	objStyle.top = '5px';
	objStyle.visibility = "visible";

}