I am developing a site that requires a piece of software based on air miles travelled between two airports chosen from a drop down menu of worldwide cities. Distances are expressed in tonnes of carbon dioxide emissions created and then multiplied by a given rate in Euro, Stg£ or US$. Customers using secure online payment can pay the resultant figure. A second system, with the same methodology, allows a customer to estimate how many km they drive in their car, whether annually or during a specific period of time. Once again, this results in a monetary contribution they may choose to make towards environmental projects aimed at reducing CO2 emissions. Examples of this software can be seen on the following sites : [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL]
## Deliverables
1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done.
2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables):
a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment.
b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request.
3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement).
## Platform
All if possible.