### LOGOUT -- present a full logout link
- Syntax: `%LOGOUT%`
- Expand to: [[Main/WebHome?logout=1]]
- Related: [[TWikiUserAuthentication]], [[SESSIONID|Main/WebHome#VarSESSIONID]], [[SESSIONVAR|Main/WebHome#VarSESSIONVAR]], [[LOGIN|Main/WebHome#VarLOGIN]], [[SESSION_VARIABLE|Main/WebHome#VarSESSION_VARIABLE]]