Updated version as Firefox addon
To remember the original author Johnny Bravo I updated his brilliant script, but released it as Firefox addon:
It needed only a few fixes to work again. However it is tested with german ebay only (where it works fine) and I have no clue which other countries would work. There will be no way to simply adapt the script, since eBay uses significantly different scripts in some other countries.
You can get more stuff here. :)