Refreshing a classical report

Hi all...

I m having a requirement to refresh a classical report from the output screen itself..

From the basic list, if I select a row and click on the detailed list button in application tool bar, a custom screen will be called. In that screen I am modifying some values and saving it. Again if i click back button, the modified value and related calculations should be updated in the basic list.....

The values which I am modifying in the screen are not to be directly updated in the list. Based on the values in the screen there are some computations ( Which are already there in the report)..

If refreshing is not possible, I need to run the report one more time to get the new values in the out put list, which is not desirable.....

Please solve this....

Thanks in advance,

JJ.