%LOGIN%
%LOGINURL%
/twiki_oir/bin/login/TWiki/TWikiVariablesSearch?origurl=/twiki_oir/bin/view/TWiki/TWikiVariablesSearch%3fsearch%3d%3bcategory%3dLinkingAndNavigationVariables
%LOGOUT%
%LOGOUTURL%
/twiki_oir/bin/view/TWiki/TWikiVariablesSearch?logout=1