chrome extension to automate bidding on auction site

I am looking for a chrome extension to automate bidding on an auction site [login to view URL] Background info, when a bid is placed with 5 min of the auction closing the closing time is extended 5 minutes. The basic objective of this extension is to automate bidding when the auction is near closing, incrementally up to a user defined amount. Example, Current bid is 700 When there is 1 minute left this app will enter a bid say for 710. The auction will get extended for another 5 minutes At 1 minute left if we are not the highest bidder and we didn’t reach our max bid the app enters 720 And so on and so forth. Note each time a bid is entered regardless if the bid is the highest bid the auction gets extended. The app wont bid right away but wait till 1 minute left. The above example was 1 minute before closing however that wont be hard coded into the extension. There should be 2 types of time intervals. 1. A user defined amount of the time left in the auction. i.e 1 minute left. 2. A user defined range of time left in the auction and the app will pick a random time within that range. You will not have access to an actual auction. I will supply any specific information you need . Like the auction source code. Attached is what the auction looks like. Note the following fields in the auction: Current bid: Auction ends Bid increment On the bottom there are two options to place a bid. This app will use the option on right, manual bid. Use Case: User enters max bid User enters either a specific time remaining or the random option At the correct time the app enters the next bid increment, considering the bid increment amount, The app “clicks” Place your bid” A new web page will appear asking to confirm the bid, the app “clicks” again on that page place your bid. The app waits the correct amount of time and checks if it needs to bid again.