Keeping SessionID

I have a php page where the SessionID has been passed in via the URL. I use a GET_VARS to put the value into a variable ($sessionid). So, far so good. The I have a button bar that calls First|Prior|Next|Last. Each of these use the URL to pass the "offset" for the next position *and* the SessionID. For example, the URL may read Display.php?SeqNo=24:SessionID=12345678 Again, everything works as anticipated. *BUT* this is re-entrant in that Display.php calls itself. The SeqNo is always detected by the GET_VARS but the SessionID is blank even though it was sent - I see it in the URL. Can this be *or* should I look for some dumb mistake...some typo....? Todd -- Todd Cary Ariste Software todd@aristesoftware.com