function checkForm() {
  user = document.getElementById("user").value;
  text = document.getElementById("text").value;
   
  if (user == "") {
  hideAllErrors();
  document.getElementById("userError").style.display = "inline";
  document.getElementById("user").select();
  document.getElementById("user").focus();
  return false;
  } 
  if (text == "") {
  hideAllErrors();
  document.getElementById("textError").style.display = "inline";
  document.getElementById("text").select();
  document.getElementById("text").focus();
  return false;
  } 
  return true;
  }

  function hideAllErrors() {
  document.getElementById("userError").style.display = "none"
  document.getElementById("textError").style.display = "none"
  }