I have found a solution to this problem.
valid_elements : (near line 43)
to allow <script> in your TinyMCE HTML
For more detail please check out this link:
This way, I can include the <script> to the HTML, to only the page I want.
I still do not understand this warning message in Firefox error console:
Warning: Error in parsing value for property 'filter'. Declaration dropped.
Source File: http://www.kudesign.co.nz/studio/
Any tip will be much appreciated!!