Ref: http://help.zoho.com/portal/en/community?ftid=2266000000229673

I'd like to propose that a new wiki widget be added that supports Google's custom search. The code generated for this contains java script, and so we cannot paste it directly into a page. But if you provide a widget for this purpose, that will help. Currently, I'm forced to use an i-frame to display the search page (see niskypto.org/Search-NiskyPTO.html).