Need help for Bone Angles Changing Script

[HardikLakhalani]

I want to change Bone Angles on particular frames. Lets say I want to Make Eye Blink Script.
Eg: By Clicking Script Button/Command, It will Add Keys on Current Frame 90 Degrees - after 7 Frames 0 Degree - After 7 Frame 90 Degree.
BUT is should be done ONLY on selected Bones.
I DONT Know LUA/MOHO Scripting. I tried by referencing lines from other/default scripts, But failed due to lack of knowledge.

[synthsin75]

Count through the bones and check if bone.fSelected == true.