text: /* JavaScript */
  
  var request = new XMLHttpRequest();
  
  request.open('POST', '/path/to/the/url', true);
  
  request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
  
  request.send(data);
  
  // ############################################################
  
  /* jQuery */
  
  $.ajax({
    type: 'POST',
    url: '/path/to/the/url',
    data: data
  });