Since that on SOCKREAD is a running event, you can't halt it to ask for input; you would have to put the $input inside an alias and call the alias (using the URL as a parameter to that alias) on a timer to get it "out of the event." I would also suggest storing the new script URL in your script somewhere in case they don't wish to upgrade right then - they could click on an upgrade button somewhere and have it download the script.
