Rails - Mar 2006 - How to display validation error in layout ?

Hi, for now I have to put error_messages_for in every form off my app to 
display validation errors.
I would prefer putting an error div into the layout of the app, which 
would display both flash notice and validation errors accordingly for 
every view of the app.

How can I retrieve all the errors message pending and not only the one 
for a specific object instance ?

Thanks

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