Crystal Reports RECORD COLORING

Message

   I was working on a crystal report, on the detail section of the report I wanted to display alternative color , I was able to do this by applying the formula
if RecordNumber mod 2 = 0 then crSilver else crwhite

This works but my prerequisite is that every first record on the page should be in white color only. I am not able to proceed at this condition as the record number will never remain constant.

Issue:In case the last record of the page ends up in white color then the next record in the second page will start in grey.From above condition It should always Start with white.

Could you please guide me on how to proceed with this one.

Thanks
Naveen