how to avoid discreption in alv grid

Hi Experts,

I am having two radio buttons, if I select 1st radio buttn it should come sales report

otherwise it should come tax report.

Alv grid i am using commentry write its working fine, but top of the alv i am getting report discrition it is coming from attributes.

I would like to change attribute discription based on radio buttons.

thanks in advance.

manisha.