%SCRIPTURL{"script"}%
http://fcppl.in2p3.fr/cgi-bin/twiki.source/bin/script
%SCRIPTURL{"viewauth"}%/%WEB%/%TOPIC% which expands to http://fcppl.in2p3.fr/cgi-bin/twiki.source/bin/viewauth/TWiki/VarSCRIPTURL2
%SCRIPTURLPATH{"script"}% instead, as it works with URL rewriting much better