Ummm, tell me if i am wrong, you have something like this
--------------
| | |
| | B |
| | |
| A |-------|
| | C |
| | |
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And what you want to do is press a link in A , and affect both B and C ?
Well , if i am right, then what you need is just a little javascript trick
I know i've use it before, but i am not sure about the code, so the best i can do for you
is tell you the URL where i did find the answer:
Here
Good Luck
Dreams they just disapear into the shadows,
then they become true....