Anyone know if it's possible (and if so how) to "lock" specific sections of the accordian so they're not clickable/accessible until "unlocked"?

I've searched for hours and can't find anything documented. May have to write an extension...

The easiest thing to do will be to create a child of each accordion member that has the same dimensions as its parent, then when you need to "lock" it, use event.stopPropogation() in response to a click

But that wouldn't have a "disabled" style to it, would it? I don't want the user thinking the accordion is broken, prefer to transmit via the interface that the section is disabled.

well, you'd have to add a class or something that would indicate that it's disabled. Then, override the normal style from your stylesheet. based on the presence of that class. All this depends on exactly on the implementation requirements, but I don't know of any way to do this without hacking something together in a custom fashion.

Just to be clear, you're talking about the Accordions in the jQuery UI library listed here http://jqueryui.com/demos/accordion/ right?

Yeah, talking about UI Accordion. I'll probably wind up just extending it with some additional functionality... I really need to be able to control user access to form sections in latter parts of the accordion.

FYI, what I'm looking for in terms of final result is something along the lines of Magento's checkout page. Multi-part form controlled in a backwards-only accordion that auto-forwards through steps. Will post again when I'm done... someone else could probably use something like this.