code

 NSString *post = @"email-email=test@email.com&password-password=testpassword";
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:@"http://www.lockerz.com/auth/login/"]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setHTTPBody:postData];


NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];


if (theConnection) {
NSLog(@"Connection succeeded!");
receivedData = [[NSMutableData data] retain];
NSString *text = [[NSString alloc] initWithData:receivedData encoding:NSASCIIStringEncoding];
NSLog(@"Data received:%@", text);
[text release];
}
else {
NSLog(@"Error in connection!");
}