var http_request = false;
var qnr=1;
function makePOSTRequest(url, parameters) {
  http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      // set type accordingly to anticipated content type
      //http_request.overrideMimeType('text/xml');
      http_request.overrideMimeType('text/html');
    }
  } else if (window.ActiveXObject) { // IE
    try {
      http_request = new ActiveXObject("Msxml2.XMLHTTP");
    } catch (e) {
      try {
        http_request = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e) {}
    }
  }
  if (!http_request) {
    alert('Cannot create XMLHTTP instance');
    return false;
  }

  http_request.onreadystatechange = alertContents;
  http_request.open('POST', url, true);
  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  http_request.setRequestHeader("Content-length", parameters.length);
  http_request.setRequestHeader("Connection", "close");
  http_request.send(parameters);
}

function alertContents() {
  if (http_request.readyState == 4) {
    if (http_request.status == 200) {
      //alert(http_request.responseText);
      result = http_request.responseText;
      document.getElementById('myspan').innerHTML = result;
    } else {
      alert('There was a problem with the request.');
    }
  }
}

function getname(obj) {
  var poststr = 'mytextarea1=';
  var ui='';

  document.getElementById('myspan').innerHTML = poststr + ui;
  document.getElementById('N1').style.visibility = 'hidden';
  document.getElementById('Q1').style.visibility = 'visible';
}

function get(obj) {
  var fn='Q' + qnr;
  var poststr = 'mytextarea1=' + fn + '<br>';
  var ui='';
  for (i=0;i<obj.why.length;i++) {
    if (obj.why[i].checked) {
      ui = obj.why[i].value;
    }
  }

  document.getElementById('myspan').innerHTML = poststr + ui;
  document.getElementById(fn).style.visibility = 'hidden';
  qnr++;
  if (document.getElementById('Q' + qnr) != undefined)
  {
    document.getElementById('Q' + qnr).style.visibility = 'visible';
  }
  else
  {
    //      makePOSTRequest('post.php', poststr);
  }
}