NIL :cookie-prepare

Not available in CGI mode.
In CGI mode, this function is called automatically upon interpreter start. Performing a user call does nothing.

Retrieves HTTP Cookies (by accessing the HTTP-COOKIE environmental variable) and breaks it into name-value pairs. Must be called before using using any other :cookie- functions.

# Webpage with user-selectable layouts may use this. 
:cookie-prepare
!if :cookie-is s'layout'
    :set &LAYOUT :cookie-val s'layout'
    !else
    :set &LAYOUT s'blue'
    !fi
:print-layout $LAYOUT