Allrighty!  Still wrapping my head around this one.  I hesitate to
post "stupid" questions, but recently there's been talk of needing
more people looking at this stuff... so stupid questions are better
than none I guess.

I've got a simple XUL application, with a python script-type, segment
of code shown below:

	<hbox flex="1"> 
		<vbox flex="1"> 
			<groupbox flex="1" aspect="1.33333"> 
				<caption label="Electrowetting Surface" /> 
				<browser id="surface" type="content"
src="chrome://main/content/index.xhtml" flex="1" /> 
			</groupbox> 
			<splitter collapse="none" /> 
			<vbox flex="1"> 
			<textbox id="python-output" readonly="true" flex="1" /> 
			<textbox id="python-input" /> 
			</vbox> 
		</vbox> 

		<vbox width="200"> 
			<tabbox flex="1"> 
				<tabs> 
					<tab label="Settings" /> 
					<tab label="Chip Info" /> 
				</tabs> 

				<tabpanels flex="1"> 
					<tabpanel name="Settings"> 

					<button label="Back"
oncommand="document.getElementById('surface').goBack()" /> 
					</tabpanel> 
				</tabpanels> 
			</tabbox> 
		</vbox> 
	</hbox> 


A click on the button returns the following message to my error console:

WARNING:xpcom:Python DOM script error
Traceback (most recent call last):
  File "C:\mozilla-src-vc71\mozilla\obj-i686-pc-mingw32\dist\bin\python\nsdom\context.py",
line 478, in CallEventHandler
    return handler(*args)
  File "chrome://main/content/main.xul", line 1, in oncommand
  File "C:\mozilla-src-vc71\mozilla\obj-i686-pc-mingw32\dist\bin\python\nsdom\context.py",
line 144, in __getattr__
    return Component.__getattr__(self, attr)
  File "C:\mozilla-src-vc71\mozilla\obj-i686-pc-mingw32\dist\bin\python\xpcom\client\__init_
_.py",
line 384, in __getattr__
    raise AttributeError, "XPCOM component '%s' has no attribute '%s'"
% (self._object_name_, attr)
<type 'exceptions.AttributeError'> : XPCOM component '<unknown>' has no
attribute 'goBack'


Where did I go wrong?  Should this have worked?  If it should have,
why not, and if not, how can I fix it so it should have?

-R

-- 
"Time is an illusion.  Lunchtime, doubly so."

Ryan Sturmer
ryansturmer@[...].com
http://www.gogglemarks.net/
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