Asp.Net Security

Question

Hi All,

In My .net Application  near about 40 pages are there and 5 Users with Different Previliege Accesses are there.

I Want to Restrict the users not to access some pages according to threir previlieges levels.

for suppose Accountant Shoudn't able to access salaries-Hike Page...

How Can Restrict them using Securuty Concept...

Can Anybody Plz Provide any useful links or SOme Useful Information about this Problem,,,

Thanks In advance,

Regards,

Sathish Pabbathi