Need some Help

Hey,
I need help with this site.. See http://www.romanware.com/appverify/changekey.php

there is Java Script in this web, and there is option of changing of Serial of PC. It's on java script and i think it can be cracked like if you don't have Old Key then u can replace it with any new key.
Please check this out and let me know if possible.

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1.4) No illegal requests- Do not post requests that are illegal or break the usage terms of the service in question, such as where to download warez, disable pop up ads on your free host etc.