How to get the hide_answer work when embedded in node

My default setting is hide_answer and it is working fine when i access the faq using category
like http://geniekids.com/faq/110

But when i embed this in a node - the faq appear as inline - with each question as a hyperlink to the page itself.
The input format is php and the code i have put in the node body is

print faq_page(100);

This behaviour can be seen at
http://geniekids.com/content/try-faq
( I am using fckeditor - does that effect - i used plain text editor mode to enter the php code in the body)