DBCollection.prototype.indexStats = function(name, opt) {
    var idx = name;
    var cmd = { indexStats: this.getName() };
    // For backwards compat check if name is an object
    if (typeof(name) == 'object') {
        Object.extend(cmd, name);
        idx = name["index"];
    }

    cmd["index"] = idx;
    if (typeof(opt) == 'object') // support arbitrary options here
        Object.extend(cmd, opt);

    return this._db.runCommand( cmd );
}