function loginFacebook(afterLogin) {
    FB.login(function(response) {
        if (response.session) {
            if (afterLogin)
                window.location.href = afterLogin;
            else
                window.location.reload(true);
        } else {
            // user cancelled login
        }
    }, { perms: 'user_location,email' });
}

function fbs_click() {
    u = location.href;
    t = document.title;
    window.open('http://www.facebook.com/sharer.php?u=' + encodeURIComponent(u) + '&t=' + encodeURIComponent(t), 'sharer', 'toolbar=0,status=0,width=626,height=436'); 
    return false; 
}