Conditional Display of a Field

Hi All ,

I have three extended fields in Rfx page. Now based on some calculation I want to display the fields. For an example - if the calculated value is 10 then I want only the first field to be visible and other two invisible , if the calculated value is 20 then first and second fields are visible and the third one is invisible and so on..

For this I have written a toolbar script but the visibility option is not at all working.

Can you give me any idea about it ?

Regards

Sudipta