[Zope] Unpickleable Error

[Arne Krug]

Hello,
why is it impossible to use HTML Objects in a Zope-Product. The HTML Object
even inherits from Persistance?!
I always get this UnPickleable - Error when I try below

Thanks for any help....

"Error Type: UnpickleableError
Error Value: Cannot pickle objects"

Traceback (innermost last):
  File C:\Programme\Zope\lib\python\ZPublisher\Publish.py, line 150, in
publish_module
  File C:\Programme\Zope\lib\python\Products\Localizer\__init__.py, line 65,
in new_publish
  File C:\Programme\Zope\lib\python\ZPublisher\Publish.py, line 114, in
publish
  File C:\Programme\Zope\lib\python\Zope\__init__.py, line 159, in
zpublisher_exception_hook
  File C:\Programme\Zope\lib\python\ZPublisher\Publish.py, line 102, in
publish
  File C:\Programme\Zope\lib\python\Zope\__init__.py, line 173, in commit
  File C:\Programme\Zope\lib\python\ZODB\Transaction.py, line 234, in commit
  File C:\Programme\Zope\lib\python\ZODB\Connection.py, line 346, in commit
    (Info: (('App.special_dtml', 'HTML'), '\x00\x00\x00\x00\x00\x00?\x10',
''))
UnpickleableError: (see above)


class AmazingMenu(SimpleItem,Persistence.Persistent):
	title = "Amazing Menu Tree"
	meta_type = 'Amazing Menu'

	manage_options = (
			{ 'label':'Tree','action':'manageTree' },
			{ 'label':'Header','action':'manageTemplates' },
			{ 'label':'Settings','action':'manageSettings' },
			{ 'label':'Consistency Check','action':'consistencycheck' },
		)

	consistencycheck = HTMLFile('dtml/consistency',globals())

	def __init__(self,id):
		self.id = id

		self.menuHeader = HTML('<table>',globals())
		self.menuItem = HTML('<tr><td><dtml-var label></td></tr>',globals())
            .................