About events in reports

Hi Fnds,

I had one problem, Here i am giveing breaf description.

In my selection screen of a report(classical)

two radio buttions on is period and another is date

dafult is period.

if period is on i need to enter period and year

if date is on i need to enter date .

apart from these i had 4 other fields which need to enter along these. but the radio button logic is for only above mention fields only.

here problme is :

in these 4 fields and the period and year fields are mandatory fields.

if i click date

it is giving error message that fill all mandatory entries. but requirment is that these fields shoud be mandatory.

can any one help me ..with out removing mandatoy option how can i resolve this..waiting for u reply guys..