function () {
    var kMinImageSize = 30;
    var kOutlineColor = "#1030cc";
    var kOutlineSize = 3;
    var kShadowSize = 7;
    var gAvailableImages = [];

    function bookmarklet() {
        if (byId("ff__container")) {
            return;
        }
        var selection;
        if (window.getSelection) {
            selection = "" + window.getSelection();
        } else if (document.selection) {
            selection = document.selection.createRange().text;
        }
        var numImages = 0;
        var imageElements = window.ff__reshare ? [] : document.getElementsByTagName("img");
        for (var i = 0; i < imageElements.length; i++) {
            var image = imageElements[i];
            if (image.width < kMinImageSize || image.height < kMinImageSize) {
                continue;
            }
            numImages++;
            var listener = addEventListener(image, "mouseover", curry(onImageMouseOver, image));
            gAvailableImages.push({element:image, cursor:image.style.cursor, listener:listener});
        }
        var container = div();
        container.id = "ff__container";
        container.style.position = "absolute";
        container.style.top = scrollPos().y + "px";
        container.style.right = "0";
        container.style.zIndex = 100000;
        var shadow = div(container);
        shadow.id = "ff__shadow";
        shadow.style.backgroundColor = "black";
        shadow.style.position = "absolute";
        shadow.style.zIndex = 0;
        shadow.style.top = "0";
        shadow.style.right = "0";
        setOpacity(shadow, 0.3);
        var foreground = div(container);
        foreground.id = "ff__foreground";
        foreground.style.backgroundColor = "white";
        foreground.style.zIndex = 2;
        foreground.style.width = "450px";
        foreground.style.height = "190px";
        foreground.innerHTML = "<iframe frameborder=\"0\" id=\"ff__iframe\" style=\"width:100%;height:100%;border:0px;padding:0px;margin:0px\"></iframe>";
        document.body.appendChild(container);
        var msg = {title:document.title, url:location.href};
        if (window.ff__reshare) {
            msg = {reshare:"1"};
            window.handleShareMessage = handleMessage;
        }
        msg.selection = selection || "";
        if (location.host == "www.hulu.com") {
            var links = document.getElementsByTagName("link");
            for (var i = 0; i < links.length; i++) {
                if (links[i].rel == "image_src") {
                    msg.image = links[i].href;
                    msg.w = 145;
                    msg.h = 80;
                } else if (links[i].rel == "video_src") {
                    msg.video = links[i].href;
                }
            }
        }
        sendFrameMessage(msg);
        var popupContainer = div();
        popupContainer.id = "ff__popup";
        popupContainer.style.position = "absolute";
        popupContainer.style.display = "none";
        popupContainer.style.left = "0px";
        popupContainer.style.top = "0px";
        popupContainer.style.zIndex = 99999;
        popupContainer.style.fontSize = "8pt";
        popupContainer.style.fontFamily = "Arial";
        popupContainer.style.fontStyle = "normal";
        popupContainer.style.fontWeight = "normal";
        popupContainer.style.background = "transparent";
        document.body.appendChild(popupContainer);
        var lastShadowWidth = 0;
        var lastShadowHeight = 0;

        function resizeShadow() {
            var shadow = byId("ff__shadow");
            var foreground = byId("ff__foreground");
            if (!shadow || !foreground) {
                clearInterval(interval);
                return;
            }
            if (lastShadowWidth != foreground.offsetWidth ||
                lastShadowHeight != foreground.offsetHeight) {
                lastShadowWidth = foreground.offsetWidth;
                lastShadowHeight = foreground.offsetHeight;
                shadow.style.width = lastShadowWidth + kShadowSize + "px";
                shadow.style.height = lastShadowHeight + kShadowSize + "px";
            }
        }

        var interval = window.setInterval(function () {checkForFrameMessage();resizeShadow();}, 50);
        resizeShadow();
        window.onscroll = function () {container.style.top = scrollPos().y + "px";};
    }


    function onImageMouseOver(image, e) {
        var popupContainer = byId("ff__popup");
        popupContainer.style.display = "none";
        clearNode(popupContainer);
        var clickTarget = div(popupContainer);
        clickTarget.style.position = "absolute";
        var offset = getOffset(image);
        clickTarget.style.left = offset.left - kOutlineSize + 1 + "px";
        clickTarget.style.top = offset.top - kOutlineSize + 1 + "px";
        clickTarget.style.width = image.width + "px";
        clickTarget.style.height = image.height + "px";
        clickTarget.style.border = kOutlineSize + "px solid " + kOutlineColor;
        clickTarget.style.cursor = "pointer";
        clickTarget.innerHTML = "<div style=\"margin:0;padding:0;width:100%;height:100%;position:relative;z-index:1;background-color:white;filter:alpha(opacity=1);opacity: 0.01\"></div><div style=\"margin:0;position:absolute;top:0;left:0;background-color:white;padding:3px;color:#1030cc;border: 1px solid #1030cc;border-width: 0px 1px 1px 0px;z-index:2\">Share image on FriendFeed</div>";
        addEventListener(clickTarget, "click", curry(onImageClick, image));
        addEventListener(clickTarget, "mouseout", onHoverMouseOut);
        popupContainer.style.display = "";
        cancelEvent(e);
    }


    function onHoverMouseOut(e) {
        var popupContainer = byId("ff__popup");
        if (!popupContainer) {
            return;
        }
        for (var n = e.toElement || e.relatedTarget; n; n = n.parentNode) {
            if (n == popupContainer) {
                return;
            }
        }
        clearNode(popupContainer);
        popupContainer.style.display = "none";
        cancelEvent(e);
    }


    function onImageClick(image, e) {
        cancelEvent(e);
        sendFrameMessage({image:image.src, w:image.width, h:image.height});
    }


    function addEventListener(instance, eventName, listener) {
        var listenerFn = listener;
        if (instance.addEventListener) {
            instance.addEventListener(eventName, listenerFn, false);
        } else if (instance.attachEvent) {
            listenerFn = function () {listener(window.event);};
            instance.attachEvent("on" + eventName, listenerFn);
        } else {
            throw new Error("Event registration not supported");
        }
        return {instance:instance, name:eventName, listener:listenerFn};
    }


    function removeEventListener(event) {
        var instance = event.instance;
        if (instance.removeEventListener) {
            instance.removeEventListener(event.name, event.listener, false);
        } else if (instance.detachEvent) {
            instance.detachEvent("on" + event.name, event.listener);
        }
    }


    function cancelEvent(e) {
        if (!e) {
            e = window.event;
        }
        if (e.preventDefault) {
            e.preventDefault();
        } else {
            e.returnValue = false;
        }
    }


    function scrollPos() {
        if (self.pageYOffset !== undefined) {
            return {x:self.pageXOffset, y:self.pageYOffset};
        }
        var d = document.documentElement;
        return {x:d.scrollLeft, y:d.scrollTop};
    }


    function setScrollPos(pos) {
        var e = document.documentElement, b = document.body;
        e.scrollLeft = b.scrollLeft = pos.x;
        e.scrollTop = b.scrollTop = pos.y;
    }


    function getOffset(obj) {
        var curleft = 0;
        var curtop = 0;
        if (obj.offsetParent) {
            curleft = obj.offsetLeft;
            curtop = obj.offsetTop;
            while ((obj = obj.offsetParent)) {
                curleft += obj.offsetLeft;
                curtop += obj.offsetTop;
            }
        }
        return {left:curleft, top:curtop};
    }


    function clearNode(node) {
        while (node.firstChild) {
            node.removeChild(node.firstChild);
        }
    }


    function removeNode(node) {
        if (node && node.parentNode) {
            node.parentNode.removeChild(node);
        }
    }


    function div(opt_parent) {
        var e = document.createElement("div");
        e.style.padding = "0";
        e.style.margin = "0";
        e.style.border = "0";
        e.style.position = "relative";
        if (opt_parent) {
            opt_parent.appendChild(e);
        }
        return e;
    }


    function curry(method) {
        var curried = [];
        for (var i = 1; i < arguments.length; i++) {
            curried.push(arguments[i]);
        }
        return function () {var args = [];for (var i = 0; i < curried.length; i++) {args.push(curried[i]);}for (var i = 0; i < arguments.length; i++) {args.push(arguments[i]);}return method.apply(null, args);};
    }


    function byId(id) {
        return document.getElementById(id);
    }


    function setOpacity(element, opacity) {
        if (navigator.userAgent.indexOf("MSIE") != -1) {
            var normalized = Math.round(opacity * 100);
            element.style.filter = "alpha(opacity=" + normalized + ")";
        } else {
            element.style.opacity = opacity;
        }
    }


    function sendFrameMessage(m) {
        var p = "";
        for (var i in m) {
            if (!m.hasOwnProperty(i)) {
                continue;
            }
            p += p.length ? "&" : "";
            p += encodeURIComponent(i) + "=" + encodeURIComponent(m[i]);
        }
        var iframe;
        if (navigator.userAgent.indexOf("Safari") != -1) {
            iframe = frames.ff__iframe;
        } else {
            iframe = byId("ff__iframe").contentWindow;
        }
        if (!iframe) {
            return;
        }
        var url = window.ff__reshare ? "" : "https://friendfeed.com";
        url += "/share/bookmarklet/frame#" + p;
        try {
            iframe.location.replace(url);
        } catch (e) {
            iframe.location = url;
        }
    }

    var gCurScroll = scrollPos();

    function checkForFrameMessage() {
        var prefix = "FFSHARE-";
        var hash = location.href.split("#")[1];
        if (!hash || hash.substring(0, prefix.length) != prefix) {
            gCurScroll = scrollPos();
            return;
        }
        location.replace(location.href.split("#")[0] + "#");
        handleMessage(hash);
        var pos = gCurScroll;
        setScrollPos(pos);
        setTimeout(function () {setScrollPos(pos);}, 10);
    }


    function handleMessage(msg) {
        msg = msg.split("-");
        for (var i = 0; i < msg.length; i++) {
            msg[i] = decodeURIComponent(msg[i]);
        }
        switch (msg[1]) {
          case "close":
            close(msg.slice(2));
            break;
          case "frameh":
            byId("ff__foreground").style.height = msg[2] + "px";
            break;
          default:;
        }
    }


    function close(args) {
        if (window.ff_reshare) {
            delete window.ff__reshare;
        }
        window.onscroll = null;
        for (var i = 0; i < gAvailableImages.length; i++) {
            removeEventListener(gAvailableImages[i].listener);
        }
        removeNode(byId("ff__popup"));

        function removeContainer() {
            removeNode(byId("ff__container"));
            return false;
        }

        if (!args || !args.length) {
            removeContainer();
            return;
        }
        var foreground = byId("ff__foreground");
        clearNode(foreground);
        foreground.style.color = "black";
        foreground.style.padding = "4px 10px 4px 4px";
        foreground.style.font = "10pt Arial, sans-serif";
        foreground.style.fontStyle = "normal";
        foreground.style.fontWeight = "normal";
        foreground.style.width = "";
        foreground.style.height = "";
        foreground.innerHTML = "<img style=\"width:16px;height:16px;margin-bottom:-3px;margin-right:1px\" src=\"http://friendfeed.com/static/images/icons/internal.png?v=99bf8708c13e43d1fbaf614404fe1314\"> <span id=\"ff__message\"></span> <a id=\"ff__link\" style=\"font-weight:bold;color:#1030cc\" href=\"\"></a>. <a href=\"#\" id=\"ff__close\" style=\"margin-left:1em;color:#1030cc\">close</a>";
        byId("ff__message").appendChild(document.createTextNode(args[0]));
        var link = byId("ff__link");
        link.href = args[1];
        link.appendChild(document.createTextNode(args[2]));
        byId("ff__close").onclick = removeContainer;
        setTimeout(removeContainer, 3500);
    }

    bookmarklet();
}