function menufontawesome_civicrm_postProcess($formName, &$form)
{
    if ($formName == 'CRM_Admin_Form_Navigation') {
        $id = $form->getVar('_id');
        $fa_icon = CRM_Utils_Request::retrieve('fa_icon', 'Text', $this, true);
        CRM_Menufontawesome_BAO_Navigation::setIcon($id, $fa_icon);
    }
}
 public static function getNavigationMenu()
 {
     $contactID = CRM_Core_Session::singleton()->get('userID');
     if ($contactID) {
         CRM_Core_Page_AJAX::setJsHeaders();
         print CRM_Core_Smarty::singleton()->fetchWith('CRM/Menufontawesome/Page/navigation.js.tpl', array('navigation' => CRM_Menufontawesome_BAO_Navigation::createNavigation($contactID)));
     }
     CRM_Utils_System::civiExit();
 }