public static function logout()
{
$myparams = JComponentHelper::getParams('com_fbconnct');
$mainframe = JFactory::getApplication();
$logout_type = $myparams->get('logout-type');
$returnUrl = base64_decode(JRequest::getVar('return'));
$facebookLogout = fbconnctController::getLogout($returnUrl);
// get logout url from facebook
$mainframe->logout();
// log out from site
if ($logout_type == 'fbws' && $facebookLogout) {
$mainframe->redirect($facebookLogout);
// logout from facebook
} else {
$mainframe->redirect($returnUrl);
//return back to homepage
}
}
