Hello guys i am newbie to this stuff so i'll try to explain my problem.I am building application that retrieve data after login to php script that looks like this:

https://zamger.etf.unsa.ba/getrssid.php

(see the page source for php scirpt definition)

and definition(source) here:

Korisnicko ime (UID): Šifra:

After i login it shows me data that i must collect like this:

RSSID: 1321B312 (this is only data that it shows and nothing else)

I must do this with httpwebrequest but don't know how i tried to do it with POST(data) but it always give me the defnition of php script as response.But i need response to be like "RSSID: 1321B312" not as script definition mentioned above...please heeelp ASAP....