somebody's gonna get SUPER RICH implementing a "copy and paste" javascript snippet that allows you to accept payment from paypal, amazon, moneybookers, credit cards, SMS, and whatever else is fashionable in the local region.
You wouldn't know what transactions occurred, and 1% of a company's revenue is not a reasonable payment for doing nothing but saving time copying-and-pasting implementation scripts from the individual payment sites.
If you meant that this site should somehow provide a payment button for all those providers without even opening an account with them, that's not a problem you can solve with technology. Know-your-customer banking laws and factoring clauses in merchant agreements mean you can never create that service.
