%
% stack: full-filespec
%
dup logs
dup exists
{
%
% full filespec image exists
%
 stamp
 dup _Customer.Stime
 *datenowr ^
 "s" Time.Diff negative
 exch _Customer.Etime
 *datenowr ^
 "s" Time.Diff positive
 and
}
{
 pop
 false
} ifelse