Well, after Funka comments on my first attempt to answer my own question, I now have this:
$('.foo').change(function test(){ $(fu).prependTo("#some-div").bind("change", test) $(this).unbind("change",test) };
which will associate a function with each element as it is created and untie it from what was created before it. This solves my problem UI-wise, but I'm starting out for beginners, so I'm really open to learning if I miss something again !;)
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