--- /dev/null
+<a name="VarSESSIONVAR"></a>
+
+### <a name="SESSIONVAR -- name of CGI and se"></a> SESSIONVAR -- name of CGI and session variable that stores the session ID
+
+- Syntax: `%SESSIONVAR%`
+- Expand to: `TWIKISID`
+- Related: [[TWikiUserAuthentication]], [[AUTHREALM|Main/WebHome#VarAUTHREALM]], [[SESSIONID|Main/WebHome#VarSESSIONID]], [[LOGIN|Main/WebHome#VarLOGIN]], [[LOGOUT|Main/WebHome#VarLOGOUT]], [[SESSION_VARIABLE|Main/WebHome#VarSESSION_VARIABLE]]