function createRequestObject()
{
  var xmlHttp;
  try
  {
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    var XmlHttpVersions = new Array('MSXML2.XMLHTTP.6.0',
                                    'MSXML2.XMLHTTP.5.0',
                                    'MSXML2.XMLHTTP.4.0',
                                    'MSXML2.XMLHTTP.3.0',
                                    'MSXML2.XMLHTTP',
                                    'Microsoft.XMLHTTP');
    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++)
    {
      try
      {
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      }
      catch (e) {}
    }
  }
  if (!xmlHttp)
    alert("error!");
  else
    return xmlHttp;
}

var http_text = createRequestObject();

// ******* text *********

function get_text(id)
{
  http_text.open('get', '/ajax.php?section=text&id='+id);
  http_text.onreadystatechange = handle_text;
  http_text.send(null);
}

function handle_text()
{
  if(http_text.readyState == 1)
  {
    document.getElementById('text_ajax').innerHTML = 'nacitavaaaam ...';
  }

  if(http_text.readyState == 4)
  {
    var response = http_text.responseText;
    document.getElementById('text_ajax').innerHTML = response;
  }
}