Adatabases gives an array with all open databases.

When I execute the following small program:

OPEN DATABASE S:\praktyk\data2005.dbc
nTel1	= ADATABASES(laGroep1)

?lagroep1(1,1)    && gives data2005

CLOSE DATABASES 

?lagroep1(1,1)    && give data2005

I thought the second array-call would give no results.
Do I overlook something?