js error while iframe resize

[alexander...@techs.com.ua]

Hello, 

when I try to resize iframe with scribd content I have on line i.rec_docs.size_recommendations_page()

a javascript error like this:

After researching the source code of embeds.js, I see that this problem is associated with absence of block with "recommendations_container" class.

Please check the problem and fix it (or advance solution for me to fix this problem).

See test script in attachements.

Thank you.