How to pass parameter to webdynpro application URL?

Hi,

I want to add a parameter to the webdynpro application url:

apllication url is like this :

http://<server name >/webdynpro/dispatcher/local/AFEDETAILS/Afebb?SAPtestId=27

the above is the url i am getting for application.

i want to add a parameter proposalno after SAPtestId.how to proceed on this?

Thanks in advance.

Regards,

Pavani