Thank You, works perfectly. I included q2a in an (very simple) facebook app and used for the iframe this second css file through the subdomain hint, what is VERY elegant. Besides it allows me to include facebook specific functions just by checking the host name...
Now comes the difficult part, logging in the facebook users.... I try to avoid a real single login, as it is inside facebook, and I could make use of the ID, name and more...but I am quite sure that later Iwill ask a related question..
Thanks again, for this excellent q2a "playground", it is real fun for me....without being an programmer...