javascript.html

<form method="POST" th:action="@{/expenses/plannings/update}"
                                                      th:object="${planBranchReport}">
                                                    <input type="hidden" name="id" th:value="${ planBranchReport.id }">
                                                    <input type="hidden" name="status" value="V">
                                                    <input type="hidden" name="branch" th:value="${planBranchReport.branch}">
                                                    <input type="hidden" name="name" th:value="${officeName}">

                                                    <button th:if="${planBranchReport.status == 'O'}" type="submit"
                                                            class="btn btn-success" onclick="if (confirm('Esta Usted seguro?')) {
                                                        return true;
                                                    } else { return false; }"> Anular</button>
                                                </form>