We finally settled with CasperJS+PhantomJS for scrapping. It is more convenient to use the same programming language. Installed with HomeBrew on OSX.
布布大暴走 copy and paste example codes without even reading the explanation. A blind money smashing on random keys! But it works…
We finally used JQuery to select drop down menu and click the search button.
Anyway… Bubu is happy with the progress today. 
Created a bitbucket repository:
https://bitbucket.org/andersonku/ebconnect