[Seaside] update a component via onMouseOver:

[Marco Leberfing]

Hello all,

i would like to update aComponent via onMouseOver:
I?ve tried several things (triggerFormElement: and so on), but nothing 
works.
Updating something in the same Component is no problem, but updating 
another Component doesn?t work.

For example, i?ve tried:
onMouseOver: (html
updater id: 'previewId';
triggerFormElement: 'attributePreview')

I?ve got a Component with a form called "attributePreview". The 
renderContentOn: will be called, but nothing happens, no update.
Are there any examples available on this topic?

Any ideas?
Cheers
Marco