send json object using http post method for android application

This is my web service Login url :- http://www.cricutchecklist.com/iphone/login.php

i have to pass username and password.

do you have android correct code for sending this two parameter perfectly?

username- chandreshkanetiya
password- 9375051117

php webservice parameter is username and password.

My code always returned me :- 开发者_如何学Python{"response" : {"success":false,"error":{"code":2,"description":"Incorrect script parameters"}}} if i pass correct username and password.

i am expecting this:-- {"response" : {"success":true,"error":{"code":2,"description":"Incorrect script parameters"}}}

if you solve this problem let me know. thank you.