How to disable a YUI MenuBarItem from markup

I prefer creating my nav menus from markup (rather than Javascript), like in this example. Is it possible to create menus and/or menu items from markup which are disabled? I see how to use Javascript to do this (use the disabled config p开发者_JS百科roperty), but I'm looking for some way to encode this information in markup - perhaps there's a CSS class to use? Or am I out of luck here?

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Sorry, it was bugged but shot down.

http://yuilibrary.com/projects/yui2/ticket/2527643