Convert simple code from Actionscript 3 to Javascript (100 lines)

Convert 100 lines of ActionScript 3 code into JavaScript. I need a simple RC4 class from AS3 be coded in JS. I tried other RC4 JS code from the web but it does not work for me since it has diff algorythem from my TCL server side, and so I need this code: here is the code to convert: [login to view URL] to be converted to JS.... simple enough. please test once converted that encode and decode works. we expect this to be done in few hours. regards, Sean.