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++ to your comments. You've reiterated and confirmed my impression that what I want to do requires some not-so-elegant code. In particular, I considered using a bit of JS to accomplish this, but I am working toward a 100% server side solution.

You wrote:

What I like to do is name the submit buttons differently, and use the names as values. For example, if you have

<input type='submit' name='add1' value='Add'>
<input type='submit' name='add2' value='Add'>
[download]

and the user clicks on the first "Add" button, you'll get a add1/Add key value pair - you use the name/key as the submit button value and you're set (just make sure your naming scheme won't clobber any of your other form element names).

Previously, I was using "rm" as the name, and the value as the name of the rm (and implicitly the label). I can see now that I can set a hidden var defining the run mode, then read the name/value pair from the submit button to branch to the appropriate actions.

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Nothing is too wonderful to be true
-- Michael Faraday