Esvon Classifieds 4 Scripting Support

Hii All,

Site: www.almotar.net

I am using Esvon Classifieds 4.0. I need the code/script that I can check either a user is logged in or not like below.

IF UesrStatus == Logged in

show Exit

ELSEIF

show Login

ENDIF

And from where i can see some more scripting syntax.
I will be thankful for this guidance.

Regards,