Thanks Gloryhack for the pointers and for listing these caveats. Indeed one needs to be careful where and when to apply XMLHTTP requests.
I am not too concerned about loosing backbutton functionality. This side-effect will be limited when one still uses regular page linking for a switch between menu choices and between forms. In fact the XMLHTTP requests can be used beneficial to prevent accidental re-posting of form data when the user hits a backbutton.

The prototype links indeed appear to come close to what I was looking for and I will investigate them further. In particular I am curious to see how they would interact with Perl code back and forth.

I am also grateful for the feedback from the other monks. As usual there's more than one way to accomplish things and the choices and tradeoffs mentioned provide insight.

In reply to Re^2: Encapsulating web client side code in Perl modules? by varian
in thread Encapsulating web client side code in Perl modules? by varian

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