function sendSingleValue(name, value, action){
  document.getElementById('divPostbox').innerHTML =
    '<form id="formPostbox" method="post" action="' + action + '">' +
      '<input type="hidden" name="' + name + '" value="' + value + '">' +  
    '</form>';

  document.getElementById('formPostbox').submit();
}

function sendDoubleValue(name1, value1, name2, value2, action){
  document.getElementById('divPostbox').innerHTML =
    '<form id="formPostbox" method="post" action="' + action + '">' +
      '<input type="hidden" name="' + name1 + '" value="' + value1 + '">' +
      '<input type="hidden" name="' + name2 + '" value="' + value2 + '">' +
    '</form>';

  document.getElementById('formPostbox').submit();
}