[Zope] Rendering ones Own Error Message

Hi, I want to render my own error message when the user attempts to traverse an incorrect URL instead of the Zope Error Message. The Zope Error Message gets displayed on a notFoundError exception under the HTTPResponse.py. Is it possible to use the standard_error_message dtml-method which is automatically generated by zope in the root folder to display my own error message? If so,please refer to the procedure/changes required. Thanks in advance. Bye, A.R.K -- Windows Sucks!!Linux Rules!!!.