Bit Mapping operation

Hi all, I am just wondering if bit map operations are possible in pl/pgsql.  We are storing sixteen different  (one or
many... i.e. check boxes ) choices in a  small int. For data cruchinging reasons, we need to reverse  the process to
findout what what fields where selected or checked. Is this info somewhere in the docs? <br />Thanks in advance. <br
/>Regards,<pre>-- 
 
Najm Hashmi
Tel:514-271-9791
www.mondo-live.com
www.flipr.com</pre>