Using aria-disabled to reference a block of code instead of a form element

Normally aria-disabled is used to reference a pseudo form element, such as an image being used to represent a check box. Can it be used to represent an upcoming section in a multipart form?

Original Code

Your new pooch

This is a sample, multi-part process. Pretend this page will walk you through the process of getting a new pet.

...

Step 1 Choose your next dog

Step 2 Give the dog a name

Step 3 Take your dog home

Place aria-disabled on the div

Your new pooch

This is a sample, multi-part process. Pretend this page will walk you through the process of getting a new pet.

...

Step 1 Choose your next dog

Step 2 Give the dog a name

Step 3 Take your dog home

Placing it on the headers

This alerts the user the header is "dimmed".

Your new pooch

This is a sample, multi-part process. Pretend this page will walk you through the process of getting a new pet.

...

Step 1 Choose your next dog

Step 2 Give the dog a name

Step 3 Take your dog home

Conclusion

Watch VoiceOver announce the samples on this page(.mov).

This is a grey area. The upcoming sessions are disabled, but we still want the user to be able to focus on the headers to know what is coming up. We just want them to understand these steps are not ready to be acted upon. The documentation suggests aria-disabled should prevent these headers from receiving focus. So this may not be a valid use.

aria-disabled (state)

Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable. See related aria-hidden and aria-readonly.

For example, irrelevant options in a radio group may be disabled. Disabled elements might not receive focus from the tab order. For some disabled elements, applications might choose not to support navigation to descendants. In addition to setting the aria-disabled attribute, authors SHOULD change the appearance (grayed out, etc.) to indicate that the item has been disabled.

The state of being disabled applies to the current element and all focusable descendant elements of the element on which the aria-disabled attribute is applied.

Characteristics of aria-disabled
CharacteristicValue
Used in Roles:All elements of the base markup
Value:true/false
Values of aria-disabled
ValueDescription
true:The element and all focusable descendants are disabled and its value cannot be changed by the user.
false (default):The element is enabled.
Aria States and Properties - W3C