I'm trying to get to grips with ditaval and props as a means of handling conditions, and already have a couple of questions.

1. Does the example here show correct use of the props attribute for later conditional processing with a ditaval file?

    [dd props="airportPubs"]The group is also involved in preparing and updating the safety procedure SOP-SAF 015-02 (available in the Airport Publications environment) and the Winter Operations Manual.[/dd]
    [dd props="extranet"]The group is also involved in preparing and updating the safety procedure SOP-SAF 015-02 (available on the company extranet) and the Winter Operations Manual.[/dd]


2. If it does, then I'll be fairly happy with applying conditions to a complete element such as a [dd]. I suppose that for a conditional block of text within a paragraph, I can wrap each of the variants in a [phrase] and set the [props] on the [phrase]?

    [p]The group is also involved in preparing and updating the safety procedure SOP-SAF 015-02 (available
    [ph props="airportPubs"]in the Airport Publications environment[/ph]
    [ph props="extranet"]on the company extranet[/ph]
    ) and the Winter Operations Manual.[/p]


And I suppose, then, I could even use [ph] elements inside a [title] to handle something like this:

    [title]
    [ph props="new_042009"]Wild-life strikes[/ph]
    [ph props="deleted_042009"]Bird-strike incident rate[/ph]
    [/title]

Turning the display/output of conditional blocks on and off with ditaval is the next stage, but it seemed best to check my assumptions about [props] coding first!

Thanks in advance for any hints and tips.