Test (document and cleanup if needed) issue with JSON

[Vasyl Zuzyak]

• http://stackoverflow.com/questions/12976801/json-not-working-in-internet-explorer-8
• http://stackoverflow.com/questions/4715373/json-not-defined-internet-explorer-8
• http://support.microsoft.com/kb/976662
• http://testsuites.opera.com/JSON/correctness/035.html

Summary

• JSON object is not available in pure script as global object is not a 'window'
• JSON object also is not available in html wrapped script for some reason, but 'window' and 'document' present. other build in objects also seems to be absent