Flex, remoteobject, AMF, parameters and security

[eluser]Shrike67[/eluser]
Hello,
I use Flex and AMF with the
http://codeigniter.com/wiki/AMF_Flash_Re...nd_and_CI/

I need to use some functions with parameters, the only method that I found is to set a

Code:

public function fname($param1, $param2)

but I need to populate the $_POST variable, so CI can sanitize the parameters, I can use the Form validation class, and the users can't set this parameters in the url

If you want see a flex example:
http://livedocs.adobe.com/flex/3/html/he...ess_4.html

Any suggestion for the best way to solve this problem in CI and AMF?

Thanks