var OW_FBConstructor = function(libUrl, loginOptions, options, loginUrl)
{
    var self = this;

    var redirect = function(href) {
        if (href) {
            window.location.href = href;
        } else {
            window.location.reload(true);
        }
    };

    this.delegates = {
        beforeInit: function(){

        },

        afterInit: function(FB){

        },

        onLogin: function(r){
            redirect(options.onLoginUrl + '&accessToken=' + r.authResponse.accessToken );
        },

        onSynchronize: function(){
            redirect(options.onSynchronizeUrl);
        }
    };


    this.init = function(params)
    {
        this.delegates.beforeInit();
        $('body').prepend('<div id="fb-root"></div>');

        window.fbAsyncInit = function() {
            FB.init(params);

            self.delegates.afterInit(FB);
        };

        (function() {
            var e = document.createElement('script');
            e.src = libUrl;
            e.async = true;
            document.getElementById('fb-root').appendChild(e);
        }());
    };

    this.requireLogin = function(func)
    {
        if (typeof FB == "undefined") {
            window.location.href = loginUrl;
        }
        else {
            FB.getLoginStatus(function(response)
            {
                if (response.authResponse)
                {
                    func(response);
                }
                else
                {
                    FB.login(function(r)
                    {
                        if (r.authResponse)
                        {
                            func(r);
                        }
    
                    }, loginOptions);
                }
            });
        }
    };

    this.login = function()
    {
        this.requireLogin(function(r){
            self.delegates.onLogin(r);
        });
    };

    this.synchronize = function(delegate)
    {
        this.requireLogin(function(r){
            self.delegates.onSynchronize(r);
        });
    };
};

• [F] fb.js
  Delete