if (!window.MediaBrowser) {
    window.MediaBrowser = {};
}

MediaBrowser.ApiClient = function ($, navigator, JSON, WebSocket, setTimeout, window) {

    /**
     * Creates a new api client instance
     * @param {String} serverProtocol
     * @param {String} serverHostName
     * @param {String} serverPortNumber
     * @param {String} clientName 
     * @param {String} applicationVersion 
     */
    return function (serverProtocol, serverHostName, serverPortNumber, clientName, applicationVersion) {

        if (!serverProtocol) {
            throw new Error("Must supply a serverProtocol, e.g. http:");
        }
        if (!serverHostName) {
            throw new Error("Must supply serverHostName, e.g. 192.168.1.1 or myServerName");
        }

        var self = this;
        var deviceName = "Web Browser";
        var deviceId = MediaBrowser.SHA1(navigator.userAgent + (navigator.cpuClass || ""));
        var currentUserId;
        var webSocket;

        /**
         * Gets the server host name.
         */
        self.serverHostName = function () {

            return serverHostName;
        };

        /**
         * Gets or sets the current user id.
         */
        self.currentUserId = function (val) {

            if (val !== undefined) {
                currentUserId = val;
            } else {
                return currentUserId;
            }
        };

        deviceName = (function () {

            var name = "";

            if ($.browser.chrome) {
                name = "Chrome";
            }
            else if ($.browser.safari) {
                name = "Safari";
            }
            else if ($.browser.webkit) {
                name = "WebKit";
            }
            else if ($.browser.msie) {
                name = "Internet Explorer";
            }
            else if ($.browser.opera) {
                name = "Opera";
            }
            else if ($.browser.firefox || $.browser.mozilla) {
                name = "Firefox";
            }

            if (name) {
                if ($.browser.version) {
                    name += " " + $.browser.version;
                }
            }
            else {
                name = "Web Browser";
            }

            if ($.browser.ipad) {
                name += " Ipad";
            }
            else if ($.browser.iphone) {
                name += " Iphone";
            }
            else if ($.browser.android) {
                name += " Android";
            }
            return name;
        }());

        self.deviceId = function () {
            return deviceId;
        };

        self.encodeName = function (name) {

            name = name.split('/').join('-');

            name = name.split('?').join('-');

            var val = $.param({ name: name });
            return val.substring(val.indexOf('=') + 1).replace("'", '%27');
        };

        /**
         * Wraps around jQuery ajax methods to add additional info to the request.
         */
        self.ajax = function (request) {

            if (!request) {
                throw new Error("Request cannot be null");
            }

            if (clientName) {

                var auth = 'MediaBrowser Client="' + clientName + '", Device="' + deviceName + '", DeviceId="' + deviceId + '", Version="' + applicationVersion + '"';

                if (currentUserId) {
                    auth += ', UserId="' + currentUserId + '"';
                }

                request.headers = {
                    Authorization: auth
                };
            }

            return $.ajax(request);
        };

        /**
         * Creates an api url based on a handler name and query string parameters
         * @param {String} name
         * @param {Object} params
         */
        self.getUrl = function (name, params) {

            if (!name) {
                throw new Error("Url name cannot be empty");
            }

            var url = serverProtocol + "//" + serverHostName;

            if (serverPortNumber) {
                url += ":" + serverPortNumber;
            }

            url += "/mediabrowser/" + name;

            if (params) {
                url += "?" + $.param(params);
            }

            return url;
        };

        self.openWebSocket = function (port) {

            var url = "ws://" + serverHostName + ":" + port + "/mediabrowser";

            webSocket = new WebSocket(url);

            webSocket.onmessage = function (msg) {
                msg = JSON.parse(msg.data);
                $(self).trigger("websocketmessage", [msg]);
            };

            webSocket.onopen = function () {
                setTimeout(function () {

                    self.sendWebSocketMessage("Identity", clientName + "|" + deviceId + "|" + applicationVersion + "|" + deviceName);

                    $(self).trigger("websocketopen");
                }, 500);
            };
            webSocket.onerror = function () {
                setTimeout(function () {
                    $(self).trigger("websocketerror");
                }, 0);
            };
            webSocket.onclose = function () {
                setTimeout(function () {
                    $(self).trigger("websocketclose");
                }, 0);
            };
        };

        self.closeWebSocket = function () {
            if (webSocket && webSocket.readyState === WebSocket.OPEN) {
                webSocket.close();
            }
        };

        self.sendWebSocketMessage = function (name, data) {

            var msg = { MessageType: name };

            if (data) {
                msg.Data = data;
            }

            msg = JSON.stringify(msg);

            webSocket.send(msg);
        };

        self.isWebSocketOpen = function () {
            return webSocket && webSocket.readyState === WebSocket.OPEN;
        };

        self.isWebSocketOpenOrConnecting = function () {
            return webSocket && (webSocket.readyState === WebSocket.OPEN || webSocket.readyState === WebSocket.CONNECTING);
        };

        /**
         * Gets an item from the server
         * Omit itemId to get the root folder.
         */
        self.getItem = function (userId, itemId) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/" + itemId);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the root folder from the server
         */
        self.getRootFolder = function (userId) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/Root");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getNotificationSummary = function (userId) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Notifications/" + userId + "/Summary");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getNotifications = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Notifications/" + userId, options || {});

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.markNotificationsRead = function (userId, idList, isRead) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!idList || !idList.length) {
                throw new Error("null idList");
            }

            var suffix = isRead ? "Read" : "Unread";

            var params = {
                UserId: userId,
                Ids: idList.join(',')
            };

            var url = self.getUrl("Notifications/" + userId + "/" + suffix, params);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Gets the current server status
         */
        self.getSystemInfo = function () {

            var url = self.getUrl("System/Info");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getInstantMixFromSong = function (itemId, options) {

            var url = self.getUrl("Songs/" + itemId + "/InstantMix", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getInstantMixFromAlbum = function (itemId, options) {

            var url = self.getUrl("Albums/" + itemId + "/InstantMix", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getInstantMixFromArtist = function (name, options) {

            var url = self.getUrl("Artists/" + self.encodeName(name) + "/InstantMix", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getInstantMixFromMusicGenre = function (name, options) {

            var url = self.getUrl("MusicGenres/" + self.encodeName(name) + "/InstantMix", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSimilarMovies = function (itemId, options) {

            var url = self.getUrl("Movies/" + itemId + "/Similar", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSimilarTrailers = function (itemId, options) {

            var url = self.getUrl("Trailers/" + itemId + "/Similar", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSimilarShows = function (itemId, options) {

            var url = self.getUrl("Shows/" + itemId + "/Similar", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSimilarAlbums = function (itemId, options) {

            var url = self.getUrl("Albums/" + itemId + "/Similar", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSimilarGames = function (itemId, options) {

            var url = self.getUrl("Games/" + itemId + "/Similar", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets all cultures known to the server
         */
        self.getCultures = function () {

            var url = self.getUrl("Localization/cultures");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets all countries known to the server
         */
        self.getCountries = function () {

            var url = self.getUrl("Localization/countries");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets plugin security info
         */
        self.getPluginSecurityInfo = function () {

            var url = self.getUrl("Plugins/SecurityInfo");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the directory contents of a path on the server
         */
        self.getDirectoryContents = function (path, options) {

            if (!path) {
                throw new Error("null path");
            }

            options = options || {};

            options.path = path;

            var url = self.getUrl("Environment/DirectoryContents", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a list of physical drives from the server
         */
        self.getDrives = function () {

            var url = self.getUrl("Environment/Drives");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a list of network devices from the server
         */
        self.getNetworkDevices = function () {

            var url = self.getUrl("Environment/NetworkDevices");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Cancels a package installation
         */
        self.cancelPackageInstallation = function (installationId) {

            if (!installationId) {
                throw new Error("null installationId");
            }

            var url = self.getUrl("Packages/Installing/" + installationId);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
         * Refreshes metadata for an item
         */
        self.refreshItem = function (itemId, force, recursive) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Items/" + itemId + "/Refresh", {

                forced: force || false,
                recursive: recursive || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshArtist = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Artists/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshGenre = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Genres/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshMusicGenre = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("MusicGenres/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshGameGenre = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("GameGenres/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshPerson = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Persons/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.refreshStudio = function (name, force) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Studios/" + self.encodeName(name) + "/Refresh", {

                forced: force || false

            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Installs or updates a new plugin
         */
        self.installPlugin = function (name, updateClass, version) {

            if (!name) {
                throw new Error("null name");
            }

            if (!updateClass) {
                throw new Error("null updateClass");
            }

            var options = {
                updateClass: updateClass
            };

            if (version) {
                options.version = version;
            }

            var url = self.getUrl("Packages/Installed/" + name, options);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Instructs the server to perform a restart.
         */
        self.restartServer = function () {

            var url = self.getUrl("System/Restart");

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Instructs the server to perform a shutdown.
         */
        self.shutdownServer = function () {

            var url = self.getUrl("System/Shutdown");

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Gets information about an installable package
         */
        self.getPackageInfo = function (name) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Packages/" + name);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the latest available application update (if any)
         */
        self.getAvailableApplicationUpdate = function () {

            var url = self.getUrl("Packages/Updates", { PackageType: "System" });

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the latest available plugin updates (if any)
         */
        self.getAvailablePluginUpdates = function () {

            var url = self.getUrl("Packages/Updates", { PackageType: "UserInstalled" });

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the virtual folder for a view. Specify a userId to get a user view, or omit for the default view.
         */
        self.getVirtualFolders = function (userId) {

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url = self.getUrl(url);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets all the paths of the locations in the physical root.
         */
        self.getPhysicalPaths = function () {

            var url = self.getUrl("Library/PhysicalPaths");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the current server configuration
         */
        self.getServerConfiguration = function () {

            var url = self.getUrl("System/Configuration");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets the server's scheduled tasks
         */
        self.getScheduledTasks = function () {

            var url = self.getUrl("ScheduledTasks");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
        * Starts a scheduled task
        */
        self.startScheduledTask = function (id) {

            if (!id) {
                throw new Error("null id");
            }

            var url = self.getUrl("ScheduledTasks/Running/" + id);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
        * Gets a scheduled task
        */
        self.getScheduledTask = function (id) {

            if (!id) {
                throw new Error("null id");
            }

            var url = self.getUrl("ScheduledTasks/" + id);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getNextUpEpisodes = function (options) {

            var url = self.getUrl("Shows/NextUp", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
        * Stops a scheduled task
        */
        self.stopScheduledTask = function (id) {

            if (!id) {
                throw new Error("null id");
            }

            var url = self.getUrl("ScheduledTasks/Running/" + id);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
         * Gets the configuration of a plugin
         * @param {String} Id
         */
        self.getPluginConfiguration = function (id) {

            if (!id) {
                throw new Error("null Id");
            }

            var url = self.getUrl("Plugins/" + id + "/Configuration");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a list of plugins that are available to be installed
         */
        self.getAvailablePlugins = function (options) {

            options = $.extend({}, options || {});
            options.PackageType = "UserInstalled";

            var url = self.getUrl("Packages", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Uninstalls a plugin
         * @param {String} Id
         */
        self.uninstallPlugin = function (id) {

            if (!id) {
                throw new Error("null Id");
            }

            var url = self.getUrl("Plugins/" + id);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
        * Removes a virtual folder from either the default view or a user view
        * @param {String} name
        */
        self.removeVirtualFolder = function (name, userId, refreshLibrary) {

            if (!name) {
                throw new Error("null name");
            }

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url += "/" + name;

            url = self.getUrl(url, {
                refreshLibrary: refreshLibrary ? true : false
            });

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
       * Adds a virtual folder to either the default view or a user view
       * @param {String} name
       */
        self.addVirtualFolder = function (name, type, userId, refreshLibrary) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (type) {
                options.collectionType = type;
            }

            options.refreshLibrary = refreshLibrary ? true : false;

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url += "/" + name;
            url = self.getUrl(url, options);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
       * Renames a virtual folder, within either the default view or a user view
       * @param {String} name
       */
        self.renameVirtualFolder = function (name, newName, userId, refreshLibrary) {

            if (!name) {
                throw new Error("null name");
            }

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url += "/" + name + "/Name";

            url = self.getUrl(url, {
                refreshLibrary: refreshLibrary ? true : false,
                newName: newName
            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
        * Adds an additional mediaPath to an existing virtual folder, within either the default view or a user view
        * @param {String} name
        */
        self.addMediaPath = function (virtualFolderName, mediaPath, userId, refreshLibrary) {

            if (!virtualFolderName) {
                throw new Error("null virtualFolderName");
            }

            if (!mediaPath) {
                throw new Error("null mediaPath");
            }

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url += "/" + virtualFolderName + "/Paths";

            url = self.getUrl(url, {

                refreshLibrary: refreshLibrary ? true : false,
                path: mediaPath
            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
        * Removes a media path from a virtual folder, within either the default view or a user view
        * @param {String} name
        */
        self.removeMediaPath = function (virtualFolderName, mediaPath, userId, refreshLibrary) {

            if (!virtualFolderName) {
                throw new Error("null virtualFolderName");
            }

            if (!mediaPath) {
                throw new Error("null mediaPath");
            }

            var url = userId ? "Users/" + userId + "/VirtualFolders" : "Library/VirtualFolders";

            url += "/" + virtualFolderName + "/Paths";

            url = self.getUrl(url, {

                refreshLibrary: refreshLibrary ? true : false,
                path: mediaPath
            });

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
         * Deletes a user
         * @param {String} id
         */
        self.deleteUser = function (id) {

            if (!id) {
                throw new Error("null id");
            }

            var url = self.getUrl("Users/" + id);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        /**
         * Deletes a user image
         * @param {String} userId
         * @param {String} imageType The type of image to delete, based on the server-side ImageType enum.
         */
        self.deleteUserImage = function (userId, imageType, imageIndex) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!imageType) {
                throw new Error("null imageType");
            }

            var url = self.getUrl("Users/" + userId + "/Images/" + imageType);

            if (imageIndex != null) {
                url += "/" + imageIndex;
            }

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        self.deleteItemImage = function (itemId, itemType, itemName, imageType, imageIndex) {

            if (!imageType) {
                throw new Error("null imageType");
            }

            if (!itemType) {
                throw new Error("null itemType");
            }

            var url;

            if (itemType == "Artist") {
                url = self.getUrl("Artists/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Genre") {
                url = self.getUrl("Genres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "GameGenre") {
                url = self.getUrl("GameGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "MusicGenre") {
                url = self.getUrl("MusicGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Person") {
                url = self.getUrl("Persons/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Studio") {
                url = self.getUrl("Studios/" + self.encodeName(itemName) + "/Images");
            }
            else {
                url = self.getUrl("Items/" + itemId + "/Images");
            }

            url += "/" + imageType;

            if (imageIndex != null) {
                url += "/" + imageIndex;
            }

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        self.deleteItem = function (itemId) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Items/" + itemId);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        self.updateItemImageIndex = function (itemId, itemType, itemName, imageType, imageIndex, newIndex) {

            if (!imageType) {
                throw new Error("null imageType");
            }

            if (!itemType) {
                throw new Error("null itemType");
            }

            var url;

            var options = { newIndex: newIndex };

            if (itemType == "Artist") {
                url = self.getUrl("Artists/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else if (itemType == "Genre") {
                url = self.getUrl("Genres/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else if (itemType == "GameGenre") {
                url = self.getUrl("GameGenres/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else if (itemType == "MusicGenre") {
                url = self.getUrl("MusicGenres/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else if (itemType == "Person") {
                url = self.getUrl("Persons/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else if (itemType == "Studio") {
                url = self.getUrl("Studios/" + self.encodeName(itemName) + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }
            else {
                url = self.getUrl("Items/" + itemId + "/Images/" + imageType + "/" + imageIndex + "/Index", options);
            }

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.getItemImageInfos = function (itemId, itemType, itemName) {

            if (!itemType) {
                throw new Error("null itemType");
            }

            var url;

            if (itemType == "Artist") {
                url = self.getUrl("Artists/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Genre") {
                url = self.getUrl("Genres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "GameGenre") {
                url = self.getUrl("GameGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "MusicGenre") {
                url = self.getUrl("MusicGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Person") {
                url = self.getUrl("Persons/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Studio") {
                url = self.getUrl("Studios/" + self.encodeName(itemName) + "/Images");
            }
            else {
                url = self.getUrl("Items/" + itemId + "/Images");
            }

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getCriticReviews = function (itemId, options) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Items/" + itemId + "/CriticReviews", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSessions = function (options) {

            var url = self.getUrl("Sessions", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Uploads a user image
         * @param {String} userId
         * @param {String} imageType The type of image to delete, based on the server-side ImageType enum.
         * @param {Object} file The file from the input element
         */
        self.uploadUserImage = function (userId, imageType, file) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!imageType) {
                throw new Error("null imageType");
            }

            if (!file) {
                throw new Error("File must be an image.");
            }

            if (file.type != "image/png" && file.type != "image/jpeg" && file.type != "image/jpeg") {
                throw new Error("File must be an image.");
            }

            var deferred = $.Deferred();

            var reader = new FileReader();

            reader.onerror = function () {
                deferred.reject();
            };

            reader.onabort = function () {
                deferred.reject();
            };

            // Closure to capture the file information.
            reader.onload = function (e) {

                // Split by a comma to remove the url: prefix
                var data = e.target.result.split(',')[1];

                var url = self.getUrl("Users/" + userId + "/Images/" + imageType);

                self.ajax({
                    type: "POST",
                    url: url,
                    data: data,
                    contentType: "image/" + file.name.substring(file.name.lastIndexOf('.') + 1)
                }).done(function (result) {

                    deferred.resolveWith(null, [result]);

                }).fail(function () {
                    deferred.reject();
                });
            };

            // Read in the image file as a data URL.
            reader.readAsDataURL(file);

            return deferred.promise();
        };

        self.uploadItemImage = function (itemId, itemType, itemName, imageType, file) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            if (!imageType) {
                throw new Error("null imageType");
            }

            if (!file) {
                throw new Error("File must be an image.");
            }

            if (file.type != "image/png" && file.type != "image/jpeg" && file.type != "image/jpeg") {
                throw new Error("File must be an image.");
            }

            var url;

            if (itemType == "Artist") {
                url = self.getUrl("Artists/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Genre") {
                url = self.getUrl("Genres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "GameGenre") {
                url = self.getUrl("GameGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "MusicGenre") {
                url = self.getUrl("MusicGenres/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Person") {
                url = self.getUrl("Persons/" + self.encodeName(itemName) + "/Images");
            }
            else if (itemType == "Studio") {
                url = self.getUrl("Studios/" + self.encodeName(itemName) + "/Images");
            }
            else {
                url = self.getUrl("Items/" + itemId + "/Images");
            }

            url += "/" + imageType;

            var deferred = $.Deferred();

            var reader = new FileReader();

            reader.onerror = function () {
                deferred.reject();
            };

            reader.onabort = function () {
                deferred.reject();
            };

            // Closure to capture the file information.
            reader.onload = function (e) {

                // Split by a comma to remove the url: prefix
                var data = e.target.result.split(',')[1];

                self.ajax({
                    type: "POST",
                    url: url,
                    data: data,
                    contentType: "image/" + file.name.substring(file.name.lastIndexOf('.') + 1)
                }).done(function (result) {

                    deferred.resolveWith(null, [result]);

                }).fail(function () {
                    deferred.reject();
                });
            };

            // Read in the image file as a data URL.
            reader.readAsDataURL(file);

            return deferred.promise();
        };

        /**
         * Gets the list of installed plugins on the server
         */
        self.getInstalledPlugins = function () {

            var url = self.getUrl("Plugins");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a user by id
         * @param {String} id
         */
        self.getUser = function (id) {

            if (!id) {
                throw new Error("Must supply a userId");
            }

            var url = self.getUrl("Users/" + id);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a studio
         */
        self.getStudio = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Studios/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a genre
         */
        self.getGenre = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Genres/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getMusicGenre = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("MusicGenres/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getGameGenre = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("GameGenres/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets an artist
         */
        self.getArtist = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Artists/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a year
         */
        self.getYear = function (yea, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Years/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a Person
         */
        self.getPerson = function (name, userId) {

            if (!name) {
                throw new Error("null name");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Persons/" + self.encodeName(name), options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getPublicUsers = function () {

            var url = self.getUrl("users/public");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets all users from the server
         */
        self.getUsers = function (options) {

            var url = self.getUrl("users", options || {});

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets all available parental ratings from the server
         */
        self.getParentalRatings = function () {

            var url = self.getUrl("Localization/ParentalRatings");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets a list of all available conrete BaseItem types from the server
         */
        self.getItemTypes = function (options) {

            var url = self.getUrl("Library/ItemTypes", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Constructs a url for a user image
         * @param {String} userId
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getUserImageUrl = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {

            };

            var url = "Users/" + userId + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a person image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getPersonImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "Persons/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a year image
         * @param {String} year
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getYearImageUrl = function (year, options) {

            if (!year) {
                throw new Error("null year");
            }

            options = options || {

            };

            var url = "Years/" + year + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a genre image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getGenreImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "Genres/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a genre image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getMusicGenreImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "MusicGenres/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a genre image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getGameGenreImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "GameGenres/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a artist image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getArtistImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "Artists/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for a studio image
         * @param {String} name
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getStudioImageUrl = function (name, options) {

            if (!name) {
                throw new Error("null name");
            }

            options = options || {

            };

            var url = "Studios/" + self.encodeName(name) + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for an item image
         * @param {String} itemId
         * @param {Object} options
         * Options supports the following properties:
         * type - Primary, logo, backdrop, etc. See the server-side enum ImageType
         * index - When downloading a backdrop, use this to specify which one (omitting is equivalent to zero)
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getImageUrl = function (itemId, options) {

            if (!itemId) {
                throw new Error("itemId cannot be empty");
            }

            options = options || {

            };

            var url = "Items/" + itemId + "/Images/" + options.type;

            if (options.index != null) {
                url += "/" + options.index;
            }

            // Don't put these on the query string
            delete options.type;
            delete options.index;

            return self.getUrl(url, options);
        };

        /**
         * Constructs a url for an item logo image
         * If the item doesn't have a logo, it will inherit a logo from a parent
         * @param {Object} item A BaseItem
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getLogoImageUrl = function (item, options) {

            if (!item) {
                throw new Error("null item");
            }

            options = options || {

            };

            options.imageType = "logo";

            var logoItemId = item.ImageTags && item.ImageTags.Logo ? item.Id : item.ParentLogoItemId;

            return logoItemId ? self.getImageUrl(logoItemId, options) : null;
        };

        self.getThumbImageUrl = function (item, options) {

            if (!item) {
                throw new Error("null item");
            }

            options = options || {

            };

            options.imageType = "thumb";

            var itemId = item.ImageTags && item.ImageTags.Thumb ? item.Id : item.ParentThumbItemId;

            return itemId ? self.getImageUrl(itemId, options) : null;
        };

        /**
         * Constructs an array of backdrop image url's for an item
         * If the item doesn't have any backdrops, it will inherit them from a parent
         * @param {Object} item A BaseItem
         * @param {Object} options
         * Options supports the following properties:
         * width - download the image at a fixed width
         * height - download the image at a fixed height
         * maxWidth - download the image at a maxWidth
         * maxHeight - download the image at a maxHeight
         * quality - A scale of 0-100. This should almost always be omitted as the default will suffice.
         * For best results do not specify both width and height together, as aspect ratio might be altered.
         */
        self.getBackdropImageUrl = function (item, options) {

            if (!item) {
                throw new Error("null item");
            }

            options = options || {

            };

            options.imageType = "backdrop";

            var backdropItemId;
            var backdropCount;

            if (!item.BackdropCount) {
                backdropItemId = item.ParentBackdropItemId;
                backdropCount = item.ParentBackdropCount || 0;
            } else {
                backdropItemId = item.Id;
                backdropCount = item.BackdropCount;
            }

            if (!backdropItemId) {
                return [];
            }

            var files = [];

            for (var i = 0; i < backdropCount; i++) {

                options.imageIndex = i;

                files[i] = self.getImageUrl(backdropItemId, options);
            }

            return files;
        };

        /**
         * Authenticates a user
         * @param {String} name
         * @param {String} password
         */
        self.authenticateUserByName = function (name, password) {

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/authenticatebyname");

            var postData = {
                password: MediaBrowser.SHA1(password || ""),
                Username: name
            };

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(postData),
                dataType: "json",
                contentType: "application/json"
            });
        };

        /**
         * Authenticates a user
         * @param {String} userId
         * @param {String} password
         */
        self.authenticateUser = function (userId, password) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/authenticate");

            var postData = {
                password: MediaBrowser.SHA1(password || "")
            };

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(postData),
                dataType: "json",
                contentType: "application/json"
            });
        };

        /**
         * Updates a user's password
         * @param {String} userId
         * @param {String} currentPassword
         * @param {String} newPassword
         */
        self.updateUserPassword = function (userId, currentPassword, newPassword) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/Password");

            var postData = {

            };

            postData.currentPassword = MediaBrowser.SHA1(currentPassword);

            if (newPassword) {
                postData.newPassword = newPassword;
            }

            return self.ajax({
                type: "POST",
                url: url,
                data: postData
            });
        };

        /**
        * Resets a user's password
        * @param {String} userId
        */
        self.resetUserPassword = function (userId) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/Password");

            var postData = {

            };

            postData.resetPassword = true;

            return self.ajax({
                type: "POST",
                url: url,
                data: postData
            });
        };

        /**
         * Updates the server's configuration
         * @param {Object} configuration
         */
        self.updateServerConfiguration = function (configuration) {

            if (!configuration) {
                throw new Error("null configuration");
            }

            var url = self.getUrl("System/Configuration");

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(configuration),
                contentType: "application/json"
            });
        };

        self.updateItem = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("Items/" + item.Id);

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updateArtist = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("Artists/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updatePerson = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("Persons/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updateStudio = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("Studios/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updateGenre = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("Genres/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updateMusicGenre = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("MusicGenres/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        self.updateGameGenre = function (item) {

            if (!item) {
                throw new Error("null item");
            }

            var url = self.getUrl("GameGenres/" + self.encodeName(item.Name));

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(item),
                contentType: "application/json"
            });
        };

        /**
         * Updates plugin security info
         */
        self.updatePluginSecurityInfo = function (info) {

            var url = self.getUrl("Plugins/SecurityInfo");

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(info),
                contentType: "application/json"
            });
        };

        /**
         * Creates a user
         * @param {Object} user
         */
        self.createUser = function (user) {

            if (!user) {
                throw new Error("null user");
            }

            var url = self.getUrl("Users");

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(user),
                dataType: "json",
                contentType: "application/json"
            });
        };

        /**
         * Updates a user
         * @param {Object} user
         */
        self.updateUser = function (user) {

            if (!user) {
                throw new Error("null user");
            }

            var url = self.getUrl("Users/" + user.Id);

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(user),
                contentType: "application/json"
            });
        };

        /**
         * Updates the Triggers for a ScheduledTask
         * @param {String} id
         * @param {Object} triggers
         */
        self.updateScheduledTaskTriggers = function (id, triggers) {

            if (!id) {
                throw new Error("null id");
            }

            if (!triggers) {
                throw new Error("null triggers");
            }

            var url = self.getUrl("ScheduledTasks/" + id + "/Triggers");

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(triggers),
                contentType: "application/json"
            });
        };

        /**
         * Updates a plugin's configuration
         * @param {String} Id
         * @param {Object} configuration
         */
        self.updatePluginConfiguration = function (id, configuration) {

            if (!id) {
                throw new Error("null Id");
            }

            if (!configuration) {
                throw new Error("null configuration");
            }

            var url = self.getUrl("Plugins/" + id + "/Configuration");

            return self.ajax({
                type: "POST",
                url: url,
                data: JSON.stringify(configuration),
                contentType: "application/json"
            });
        };

        self.getAncestorItems = function (itemId, userId) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Items/" + itemId + "/Ancestors", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets items based on a query, typically for children of a folder
         * @param {String} userId
         * @param {Object} options
         * Options accepts the following properties:
         * itemId - Localize the search to a specific folder (root if omitted)
         * startIndex - Use for paging
         * limit - Use to limit results to a certain number of items
         * filter - Specify one or more ItemFilters, comma delimeted (see server-side enum)
         * sortBy - Specify an ItemSortBy (comma-delimeted list see server-side enum)
         * sortOrder - ascending/descending
         * fields - additional fields to include aside from basic info. This is a comma delimited list. See server-side enum ItemFields.
         * index - the name of the dynamic, localized index function
         * dynamicSortBy - the name of the dynamic localized sort function
         * recursive - Whether or not the query should be recursive
         * searchTerm - search term to use as a filter
         */
        self.getItems = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            var url = self.getUrl("Users/" + userId + "/Items", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
            Gets artists from an item
        */
        self.getArtists = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("Artists", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
            Gets genres from an item
        */
        self.getGenres = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("Genres", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getMusicGenres = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("MusicGenres", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getGameGenres = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("GameGenres", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
            Gets people from an item
        */
        self.getPeople = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("Persons", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
            Gets studios from an item
        */
        self.getStudios = function (userId, options) {

            if (!userId) {
                throw new Error("null userId");
            }

            options = options || {};
            options.userId = userId;

            var url = self.getUrl("Studios", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets local trailers for an item
         */
        self.getLocalTrailers = function (userId, itemId) {

            if (!userId) {
                throw new Error("null userId");
            }
            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/" + itemId + "/LocalTrailers");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getAdditionalVideoParts = function (userId, itemId) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Videos/" + itemId + "/AdditionalParts", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets theme songs for an item
         */
        self.getThemeSongs = function (userId, itemId) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Items/" + itemId + "/ThemeSongs", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getThemeVideos = function (userId, itemId) {

            if (!itemId) {
                throw new Error("null itemId");
            }

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Items/" + itemId + "/ThemeVideos", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getSearchHints = function (options) {

            var url = self.getUrl("Search/Hints", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Gets special features for an item
         */
        self.getSpecialFeatures = function (userId, itemId) {

            if (!userId) {
                throw new Error("null userId");
            }
            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/" + itemId + "/SpecialFeatures");

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        self.getDateParamValue = function (date) {
            function formatDigit(i) {
                return i < 10 ? "0" + i : i;
            }

            var d = date;

            return "" + d.getFullYear() + formatDigit(d.getMonth() + 1) + formatDigit(d.getDate()) + formatDigit(d.getHours()) + formatDigit(d.getMinutes()) + formatDigit(d.getSeconds());
        };

        self.markPlayed = function (userId, itemId, date) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            var options = {};

            if (date) {
                options.DatePlayed = self.getDateParamValue(date);
            }

            var url = self.getUrl("Users/" + userId + "/PlayedItems/" + itemId, options);

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.markUnplayed = function (userId, itemId) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/PlayedItems/" + itemId);

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Updates a user's favorite status for an item.
         * @param {String} userId
         * @param {String} itemId
         * @param {Boolean} isFavorite
         */
        self.updateFavoriteStatus = function (userId, itemId, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/FavoriteItems/" + itemId);

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        /**
         * Updates a user's personal rating for an item
         * @param {String} userId
         * @param {String} itemId
         * @param {Boolean} likes
         */
        self.updateUserItemRating = function (userId, itemId, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/" + itemId + "/Rating", {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Updates a user's favorite status for an item by name.
         * @param {String} userId
         * @param {String} name
         * @param {Boolean} isFavorite
         */
        self.updateFavoriteArtistStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/Artists/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        self.updateFavoritePersonStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/Persons/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        self.updateFavoriteStudioStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/Studios/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        self.updateFavoriteGenreStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/Genres/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        self.updateFavoriteMusicGenreStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/MusicGenres/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        self.updateFavoriteGameGenreStatus = function (userId, name, isFavorite) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Favorites/GameGenres/" + self.encodeName(name));

            var method = isFavorite ? "POST" : "DELETE";

            return self.ajax({
                type: method,
                url: url,
                dataType: "json"
            });
        };

        /**
        * Updates a user's rating for an item by name.
        * @param {String} userId
        * @param {String} name
        * @param {Boolean} likes
        */
        self.updateArtistRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Artists/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.updatePersonRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Persons/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.updateStudioRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Studios/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.updateGenreRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Genres/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.updateMusicGenreRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/MusicGenres/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        self.updateGameGenreRating = function (userId, name, likes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/GameGenres/" + self.encodeName(name), {
                likes: likes
            });

            return self.ajax({
                type: "POST",
                url: url,
                dataType: "json"
            });
        };

        /**
        * Clears a user's rating for an item by name.
        * @param {String} userId
        * @param {String} name
        */
        self.clearArtistRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Artists/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.clearPersonRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Persons/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.clearStudioRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Studios/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.clearGenreRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/Genres/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.clearMusicGenreRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/MusicGenres/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.clearGameGenreRating = function (userId, name) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!name) {
                throw new Error("null name");
            }

            var url = self.getUrl("Users/" + userId + "/Ratings/GameGenres/" + self.encodeName(name));

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        self.getItemCounts = function (userId) {

            var options = {};

            if (userId) {
                options.userId = userId;
            }

            var url = self.getUrl("Items/Counts", options);

            return self.ajax({
                type: "GET",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Clears a user's personal rating for an item
         * @param {String} userId
         * @param {String} itemId
         */
        self.clearUserItemRating = function (userId, itemId) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            var url = self.getUrl("Users/" + userId + "/Items/" + itemId + "/Rating");

            return self.ajax({
                type: "DELETE",
                url: url,
                dataType: "json"
            });
        };

        /**
         * Reports the user has started playing something
         * @param {String} userId
         * @param {String} itemId
         */
        self.reportPlaybackStart = function (userId, itemId, canSeek, queueableMediaTypes) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            canSeek = canSeek || false;
            queueableMediaTypes = queueableMediaTypes || '';

            if (self.isWebSocketOpen()) {

                var deferred = $.Deferred();

                var msg = [itemId, canSeek, queueableMediaTypes];

                self.sendWebSocketMessage("PlaybackStart", msg.join('|'));

                deferred.resolveWith(null, []);
                return deferred.promise();
            }

            var url = self.getUrl("Users/" + userId + "/PlayingItems/" + itemId, {

                CanSeek: canSeek,
                QueueableMediaTypes: queueableMediaTypes
            });

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Reports progress viewing an item
         * @param {String} userId
         * @param {String} itemId
         */
        self.reportPlaybackProgress = function (userId, itemId, positionTicks, isPaused, isMuted) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            if (self.isWebSocketOpen()) {

                var deferred = $.Deferred();

                var msgData = itemId + "|" + (positionTicks == null ? "" : positionTicks) + "|" + (isPaused == null ? "" : isPaused) + "|" + (isMuted == null ? "" : isMuted);

                self.sendWebSocketMessage("PlaybackProgress", msgData);

                deferred.resolveWith(null, []);
                return deferred.promise();
            }

            var params = {
                isPaused: isPaused,
                isMuted: isMuted
            };

            if (positionTicks) {
                params.positionTicks = positionTicks;
            }

            var url = self.getUrl("Users/" + userId + "/PlayingItems/" + itemId + "/Progress", params);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        /**
         * Reports a user has stopped playing an item
         * @param {String} userId
         * @param {String} itemId
         */
        self.reportPlaybackStopped = function (userId, itemId, positionTicks) {

            if (!userId) {
                throw new Error("null userId");
            }

            if (!itemId) {
                throw new Error("null itemId");
            }

            if (self.isWebSocketOpen()) {

                var deferred = $.Deferred();

                self.sendWebSocketMessage("PlaybackStopped", itemId + "|" + (positionTicks == null ? "" : positionTicks));

                deferred.resolveWith(null, []);
                return deferred.promise();
            }

            var params = {
            };

            if (positionTicks) {
                params.positionTicks = positionTicks;
            }

            var url = self.getUrl("Users/" + userId + "/PlayingItems/" + itemId, params);

            return self.ajax({
                type: "DELETE",
                url: url
            });
        };

        self.sendBrowseCommand = function (sessionId, options) {

            if (!sessionId) {
                throw new Error("null sessionId");
            }

            if (!options) {
                throw new Error("null options");
            }

            var url = self.getUrl("Sessions/" + sessionId + "/Viewing", options);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.sendPlayCommand = function (sessionId, options) {

            if (!sessionId) {
                throw new Error("null sessionId");
            }

            if (!options) {
                throw new Error("null options");
            }

            var url = self.getUrl("Sessions/" + sessionId + "/Playing", options);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.sendSystemCommand = function (sessionId, command) {

            if (!sessionId) {
                throw new Error("null sessionId");
            }

            if (!command) {
                throw new Error("null command");
            }

            var url = self.getUrl("Sessions/" + sessionId + "/System/" + command);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.sendMessageCommand = function (sessionId, options) {

            if (!sessionId) {
                throw new Error("null sessionId");
            }

            if (!options) {
                throw new Error("null options");
            }

            var url = self.getUrl("Sessions/" + sessionId + "/Message", options);

            return self.ajax({
                type: "POST",
                url: url
            });
        };

        self.sendPlayStateCommand = function (sessionId, command, options) {

            if (!sessionId) {
                throw new Error("null sessionId");
            }

            if (!command) {
                throw new Error("null command");
            }

            var url = self.getUrl("Sessions/" + sessionId + "/Playing/" + command, options || {});

            return self.ajax({
                type: "POST",
                url: url
            });
        };
    }

}(jQuery, navigator, window.JSON, window.WebSocket, setTimeout, window);

/**
 * Provides a friendly way to create an api client instance using information from the browser's current url
 */
MediaBrowser.ApiClient.create = function (clientName, applicationVersion) {

    var loc = window.location;

    return new MediaBrowser.ApiClient(loc.protocol, loc.hostname, loc.port, clientName, applicationVersion);
};

/**
*
*  Secure Hash Algorithm (SHA1)
*  http://www.webtoolkit.info/
*
**/
MediaBrowser.SHA1 = function (msg) {

    function rotate_left(n, s) {
        var t4 = (n << s) | (n >>> (32 - s));
        return t4;
    }

    function lsb_hex(val) {
        var str = "";
        var i;
        var vh;
        var vl;

        for (i = 0; i <= 6; i += 2) {
            vh = (val >>> (i * 4 + 4)) & 0x0f;
            vl = (val >>> (i * 4)) & 0x0f;
            str += vh.toString(16) + vl.toString(16);
        }
        return str;
    }

    function cvt_hex(val) {
        var str = "";
        var i;
        var v;

        for (i = 7; i >= 0; i--) {
            v = (val >>> (i * 4)) & 0x0f;
            str += v.toString(16);
        }
        return str;
    }

    function Utf8Encode(string) {
        string = string.replace(/\r\n/g, "\n");
        var utftext = "";

        for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if ((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }

        return utftext;
    }

    var blockstart;
    var i, j;
    var W = new Array(80);
    var H0 = 0x67452301;
    var H1 = 0xEFCDAB89;
    var H2 = 0x98BADCFE;
    var H3 = 0x10325476;
    var H4 = 0xC3D2E1F0;
    var A, B, C, D, E;
    var temp;

    msg = Utf8Encode(msg);

    var msg_len = msg.length;

    var word_array = new Array();
    for (i = 0; i < msg_len - 3; i += 4) {
        j = msg.charCodeAt(i) << 24 | msg.charCodeAt(i + 1) << 16 |
        msg.charCodeAt(i + 2) << 8 | msg.charCodeAt(i + 3);
        word_array.push(j);
    }

    switch (msg_len % 4) {
        case 0:
            i = 0x080000000;
            break;
        case 1:
            i = msg.charCodeAt(msg_len - 1) << 24 | 0x0800000;
            break;

        case 2:
            i = msg.charCodeAt(msg_len - 2) << 24 | msg.charCodeAt(msg_len - 1) << 16 | 0x08000;
            break;

        case 3:
            i = msg.charCodeAt(msg_len - 3) << 24 | msg.charCodeAt(msg_len - 2) << 16 | msg.charCodeAt(msg_len - 1) << 8 | 0x80;
            break;
    }

    word_array.push(i);

    while ((word_array.length % 16) != 14) word_array.push(0);

    word_array.push(msg_len >>> 29);
    word_array.push((msg_len << 3) & 0x0ffffffff);


    for (blockstart = 0; blockstart < word_array.length; blockstart += 16) {

        for (i = 0; i < 16; i++) W[i] = word_array[blockstart + i];
        for (i = 16; i <= 79; i++) W[i] = rotate_left(W[i - 3] ^ W[i - 8] ^ W[i - 14] ^ W[i - 16], 1);

        A = H0;
        B = H1;
        C = H2;
        D = H3;
        E = H4;

        for (i = 0; i <= 19; i++) {
            temp = (rotate_left(A, 5) + ((B & C) | (~B & D)) + E + W[i] + 0x5A827999) & 0x0ffffffff;
            E = D;
            D = C;
            C = rotate_left(B, 30);
            B = A;
            A = temp;
        }

        for (i = 20; i <= 39; i++) {
            temp = (rotate_left(A, 5) + (B ^ C ^ D) + E + W[i] + 0x6ED9EBA1) & 0x0ffffffff;
            E = D;
            D = C;
            C = rotate_left(B, 30);
            B = A;
            A = temp;
        }

        for (i = 40; i <= 59; i++) {
            temp = (rotate_left(A, 5) + ((B & C) | (B & D) | (C & D)) + E + W[i] + 0x8F1BBCDC) & 0x0ffffffff;
            E = D;
            D = C;
            C = rotate_left(B, 30);
            B = A;
            A = temp;
        }

        for (i = 60; i <= 79; i++) {
            temp = (rotate_left(A, 5) + (B ^ C ^ D) + E + W[i] + 0xCA62C1D6) & 0x0ffffffff;
            E = D;
            D = C;
            C = rotate_left(B, 30);
            B = A;
            A = temp;
        }

        H0 = (H0 + A) & 0x0ffffffff;
        H1 = (H1 + B) & 0x0ffffffff;
        H2 = (H2 + C) & 0x0ffffffff;
        H3 = (H3 + D) & 0x0ffffffff;
        H4 = (H4 + E) & 0x0ffffffff;

    }

    var temp = cvt_hex(H0) + cvt_hex(H1) + cvt_hex(H2) + cvt_hex(H3) + cvt_hex(H4);

    return temp.toLowerCase();
};

(function (jQuery, window, undefined) {
    "use strict";

    var matched, browser;

    jQuery.uaMatch = function (ua) {
        ua = ua.toLowerCase();

        var match = /(chrome)[ \/]([\w.]+)/.exec(ua) ||
            /(webkit)[ \/]([\w.]+)/.exec(ua) ||
            /(opera)(?:.*version|)[ \/]([\w.]+)/.exec(ua) ||
            /(msie) ([\w.]+)/.exec(ua) ||
            ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec(ua) ||
            [];

        var platform_match = /(ipad)/.exec(ua) ||
            /(iphone)/.exec(ua) ||
            /(android)/.exec(ua) ||
            [];

        var browser = match[1] || "";

        if (ua.indexOf("like gecko") != -1 && ua.indexOf('webkit') == -1 && ua.indexOf('opera') == -1) {
            browser = "msie";
        }

        return {
            browser: browser,
            version: match[2] || "0",
            platform: platform_match[0] || ""
        };
    };

    matched = jQuery.uaMatch(window.navigator.userAgent);
    browser = {};

    if (matched.browser) {
        browser[matched.browser] = true;
        browser.version = matched.version;
    }

    if (matched.platform) {
        browser[matched.platform] = true
    }

    // Chrome is Webkit, but Webkit is also Safari.
    if (browser.chrome) {
        browser.webkit = true;
    } else if (browser.webkit) {
        browser.safari = true;
    }

    jQuery.browser = browser;

})(jQuery, window);