Toggle panels at same position

Question

Hi,
   In my application I have 3 Panels. Each panel contain Radio Button List with 3 options. By default first panel displaying with first option selected in Radio Button List.
   Now when I select second option from Radio button List, I want to replace first Panel with second Panel at the same Position on the Web page and same for the third one.
   Any help appreciated...
Thanks,
VIkram