[FreeJ] advertising server

Hi,

I need to made this setup on a PUB/DISCO.
I have a RCA source, a computer and a RCA output.
I want to insert on front of the video captured from the source card,
some images of advertising that are timely rotated/changed. Freej
probably can do what I need to build.

I want to use one source: RCA input source from a video mixer of the disco
(i think to use a acquisition card philips SAA7131E ~20euro)
and for the output a generic VGA with RCA output.

I tryied freej but I don't understand perfetcly how I can choose the
Input source and the Output destination of my "production".

I think that I need to made a jsscript to create randomly some layers to
with the advertising.

Can someone help me?

I don't know how many Italians are here.. I think many... but I don't
know if it's apreciate to speak in english or italian... :)

Thanks in advance

Matteo