Hi Mirko,
I'm not expert but hopefully can help point you in right direction.
Please review the httpd files in following MQX path:
C:\Freescale\Freescale MQX 3.8\rtcs\source\httpd
There is HTTPD_REQ_GET and HTTPD_REQ_POST methods.
I think you can just use the MQX web server to server your web page that has your javascript back to the client.
We implement a CGI like interface to allow dynamic content to be generated on the device and passed back to the browser for display (AJAX stuff).
Good example to look at is in the RTCS path:
C:\Freescale\Freescale MQX 3.8\rtcs\examples\httpsrv
Regards,
David
Regards,
David