Claudio Acioli kllaudyo

## ajax.js
const ajax = (url, {method="GET", body=null, headers={}, mode}, onProgress=()=>{}, onStartProgress=()=>{}, onStopProgress=()=>{}) => {
  return new Promise((result, reject) => {
      const ajax = new XMLHttpRequest();
      ajax.open(method, url, true);

      for(let [key, value] of headers)
          ajax.setRequestHeader(key, value);

      if(mode==='cors')
          ajax.withCredentials = false;

## print_log.js
const print_log = (object, err=false) => {

  const log = document.createElement("pre");
  log.innerHTML = print_r(object);

  let border ="1px solid #d6d8db",
      radius = ".25rem",
      color = "#383d41" ,
      background = "#e2e3e5",
      padding = ".75rem 1.25rem";

## fetching_cursor.sql
declare
  cursor get_states_and_cities(pId_country number) is
  select c.nm_country,
         s.nm_state,
         ct.nm_city
    from countries c,
         states s,
         cities ct
   where ct.id_state = s.id_state
     and s.id_country = c.id_country

## print_r.js
const print_r = object => JSON.stringify(object, null, 2);

## upload.html
<html>
  <body>
    <input type="file" name="picture" id="picture" />
    <pre></pre>
  </body>
  <script>
    window.onload = function(){

      const getRequestHeaders = () => new Headers({
        'Accept': 'application/json'
	const ajax = (url, {method="GET", body=null, headers={}, mode}, onProgress=()=>{}, onStartProgress=()=>{}, onStopProgress=()=>{}) => {
	return new Promise((result, reject) => {
	const ajax = new XMLHttpRequest();
	ajax.open(method, url, true);

	for(let [key, value] of headers)
	ajax.setRequestHeader(key, value);

	if(mode==='cors')
	ajax.withCredentials = false;
	const print_log = (object, err=false) => {

	const log = document.createElement("pre");
	log.innerHTML = print_r(object);

	let border ="1px solid #d6d8db",
	radius = ".25rem",
	color = "#383d41" ,
	background = "#e2e3e5",
	padding = ".75rem 1.25rem";
	declare
	cursor get_states_and_cities(pId_country number) is
	select c.nm_country,
	s.nm_state,
	ct.nm_city
	from countries c,
	states s,
	cities ct
	where ct.id_state = s.id_state
	and s.id_country = c.id_country
	<html>
	<body>
	<input type="file" name="picture" id="picture" />
	<pre></pre>
	</body>
	<script>
	window.onload = function(){

	const getRequestHeaders = () => new Headers({
	'Accept': 'application/json'