This script converts the Item Number on the ebay item page into a clickable link that directs you to toolhaus.org’s bidders list so you can check for signs of shilling(seller using another ID to bid up their own items).
Please note that checking repeat bidders is only the first step to checking for shilling, and you should also check via Advanced Search—> Items by Bidder to check for exclusive bidding.
All credit for this script should be directed to Avi as the code is based almost entirely from his excellent Simple Ebay Links code, which by default makes this script incompatible with it. I simply find this link more useful.