BibTeX, biblatex and biber ⇒ begin numbering not from 1 in biblatex

[gujax]

Hi,
I have a problem. I would like to start numbering my citations beginning with a number not 1 but an arbitrary number e.g., 6. This is because, I have a separate section (section A) which have 5 citations. I cannot include the section into section B. Section A and section B are to be printed out as a separate pdf file. However, I want section B to begin with [6]....I will appreciate any help.
Thanks,