how to communicate in 2 frame

[ronny]

Hi all,
 i have create 2 frame, frameA and frameB,
 FrameA have 2 button, frameB have TextCtrl.

 please tell me how to:
 1. show and hide frameB when i click button1 in frameA
 2. write same text in textctrl on frameB when i click button2 in frameA

Regards
Ronny