I implemented Add To Houzz button and used a code produced by goodies page. Button works and counter works! good job from Houzz team.
The only problem is posting function produces a new addition to ideabook with unescaped title i.e. "Living%20Room%20Wall%20Design%205" but it should be "Living Room Wall Design #5".
I played with all kind of settings but it looks like documentation does not describe this issue.

Here is a page http://alexeirebrov.com/products/pink-blue-wall-design