Bookmarklet to add inline full-size images to Reddit.

gistfile1.js

javascript: (function () {
    var things = document.querySelectorAll("div.thing");
    for (var j = 0; j < things.length; j++) {
        var thing = things[j],
            entry = thing.querySelectorAll("div.entry")[0],
            thumb = thing.querySelectorAll("a.thumbnail")[0],
            img = new Image;
        img.style.display = 'block';
        img.style.width = '100%';
        if (thumb) {
            var href = thumb.href;
            if (/\.(png|gif|jpg)$/i.test(href)) img.src = href;
            else if (/imgur\.com/i.test(href)) {
                var id = /\w+?$/.exec(href)[0];
                img.src = "http://i.imgur.com/" + id + ".jpg";
            } else if (/picsarus\.com/i.test(href)) {
                var id = /\w+?$/.exec(href)[0];
                img.src = "http://picsarus.com/" + id + ".jpg";
            }
            if (img.src) entry.appendChild(img);
        }
    }
})();