Iam Developing an ecurrency exchange /payment script UI is here=> http://payexchange.top/and Im now adding modules for the ecurencies. I have read this https://bitcointalk.org/index.php?topic=14632.0 and looks like I have to redefine what gateways needed. Can some please help me list some irreversible ecurrencies so I dont wast time on reversible like paypal??