nd_" + i));
                delete added_fields[i];
            }

            function validationMongo () {
                // Makes the POST request sending uri, database_name et collection_name
                req_count += 1;
                var req_id = req_count;
                if (document.getElementById("mongo_validity").innerHTML === "Valide") {document.getElementById("coll_stats").innerHTML = "...";}
                document.getElementById("request-result").innerHTML = "";
                var name