Just a notice that I finally implemented an action that marks a field as valid or invalid depending on its validation state.
This means that it may update the CSS class or styles according to your settings of the form or the respective input options.
The actions is named MarkValidated and you can get the necessary Javascript to trigger this action by calling GetJavascriptConnectionAction or use the ConnectAction response action of the AJAX submit plug-in.
Simpler than this may be using the just released scaffolding plug-in that provides transparent AJAX support and makes use of this action. Read more about this here:
phpclasses.org/blog/package/1/post/
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