k";
                    var xhr = new XMLHttpRequest();
                    xhr.open("POST", "/", true);
                    xhr.setRequestHeader("Content-Type", "application/json");
                    var condArray = [], param;
                    for (var i in added_fields) {
                        var div = document.getElementById("cond_" + i);
                        condArray.push({});
                        param = div.querySelector('#name-select_' + i).value;
                        if (param && p