since your users can see all the source code, this is a rather complicated problem. they can easily change any function or variable at runtime without your script ever knowing. even if a sophisticated signature function is used to confirm the results.
, , colins . , , .
, . -, "" , .
, u , - .
, u -, .
:
flash SWF , , ( flash 9) useful.smth
, , .
md5 + . ( , ).
, - ( ram , ), javascript vars , , , webkit
= > swf
""
, - ;)