Save the visibility state of layers?

When designing layouts for a web site with a lot of different pages, I like to keep everything in one psd document, so that all the fixed graphics stay where they belong. Toggling the visibility of various layers to ''change between pages'' becomes quite a task, when there's lots of material.



So, what I'm after is a possibility to name and save the current state of visibility of all the layers in the psd document. In other words, I could have a ''visibility state'' called ''main page'', for example, which means I have all the relevant layers visible: ''main page title'', ''main page header'', ''main page menu'', ''main page content'' etc., and the rest of the layers would be invisible. Then I could have another saved state called ''news page'', which means all ''news''-related layers would be visible and the rest invisible.



Is there any possibility to do this in Photoshop? If not, I'd really appreciate such option!
Save the visibility state of layers?
It's something that can be done with the SDK, but also more easilly with Scripting (you will have to use Javascript to get a good speed).
Save the visibility state of layers?
Thanks Eric. It appears that I was a couple of steps behind from the Adobe crew, though. Such feature indeed exists, since cs1 actually, it's called ''layer comp''.

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