Create Actionscript (for Flash CS5) API out of current javascript PHP delivery method

We got some [live counters][1] that are currently delivered to clients through [JavaScript+HTML on the client-side][2] and PHP as a service (which I can show to interested and qualified coders). The initial values and formulas for the counters are currently defined in javascript language. We need to develop a delivery method in Actionscript (for Flash CS5), because some clients are asking for a Flash API (perhaps an XML feed). Requirements are that A) numbers must run smoothly (no jumps or hiccups) B) the source code must be protected (as well as possible) to prevent copyright infringement. The counters must work only for licensed clients (currently working only on licensed websites by means of URL permission).