Although I have not yet understood this (it is late at night here!) I read it as offering the user a button, which appears somewhere when the submit (done from a separate frame) is clicked. Not exactly what I had in mind, but maybe it can be adopted. Really, I would like to keep the user updated as to what the main script is doing (and can take a variable amount of time which I cannot estimate in advance). I would have preferred to stay purely in Perl, not having much Javascript knowledge.