HttpSession session = request.getSession();
WebUser user = SessionUtils.getWebUser(session);
WebUserPreferences preferences = user.getWebPreferences();
String portlet = request.getParameter("portletName");
DashboardPreferences dashboardPreferences = preferences.getDashboardPreferences();
dashboardPreferences.moveDown(portlet);
preferences.setDashboardPreferences(dashboardPreferences);
request.getSession().removeAttribute(Constants.USERS_SES_PORTAL);
return mapping.findForward(Constants.AJAX_URL);