QNetworkAccessManager

[Mr.FreakyJo]

I've read that in QML the aplication creates as many objects of type QNetworkAccessManager it needs. So I have a few questions :
1.Are the cookies share through all the instances of QNetworkAccessManager ?I want to login on a website ...
2.How can XMLHttpRequest be used for sending POST/GET request?In Qt I created a QNetworkRequest and then used the manager to send it.Something like this :
@QNetworkRequest request;
//setam url-ul cererii
request.setUrl(QUrl( "http://somesite.com"));

request.setRawHeader( "User-Agent", this->loginGUI->lineEditUserAgent->text().toLatin1() );

request.setHeader( QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded" );

QUrl params;

params.addEncodedQueryItem( "user", QUrl::toPercentEncoding(this->loginGUI->lineEditName->text()));
params.addEncodedQueryItem( "password", QUrl::toPercentEncoding(this->loginGUI->lineEditPassword->text() ) );
params.addEncodedQueryItem( "clear", QUrl::toPercentEncoding( "true" ) );
QByteArray paramBytes = params.toString().mid( 1 ).toLatin1();
paramBytes.replace( "/", "/" );

QNetworkReply *reply=nam->post(request,paramBytes);
connect( reply, SIGNAL( finished() ),
SLOT(homepagesc()));@