help me on audit report

[anilkumar]

Hi all

iam working on audit report, i applied tree prompt ,here i can select
particular date and time, report will disply who logon particular time

that means if i select  18-04-2010 9:00 am it will display who logon exactly his name only

but my requirement is  Asof    how may users logon list
eg: if i select 18-04-2010 11:00 am it has to display how many users are logon since 8 am to 11 am
who logon list  i need(how many users are logon)

pls suggest how can i develop this kind report.

Thanks & Regards
ANIL K.MARRI