Auction House operations ?

[wps]

The script I want to make is to sell pet eggs and buy pet eggs.
I have so many pet eggs, about 500, and I manually put them on AH every few days.
Put them on and change the buy out price.

At the same time, I buy eggs from AH for level up my pet, and it's lousy, too.

I read the API_Auction_Function and Advance Auction House source code,
but I could not figure out how to do it.

Is this possible?
Does anyone tried this before?

Thanks.