[Zope] calling standart_html_header in python script

[Exteam]

Hi,
I am using plone, & Zope.
I need to call the standard_html_header &
standard_html_footer (both are dtml methods in plone
skins), how do i call these in the python scripts.

i had tried it this way,
context.standard_html_header(context,request)
context.standard_html_footer(context,request)
but doesn't work or give any error

i had done this based on the following page

http://www.zopelabs.com/cookbook/992031125
what do i do now?
plz help me
Thanks
Harish


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