var xmlHttp = createXmlHttpRequestObject();


function createXmlHttpRequestObject() 
{
  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 creating the XMLHttpRequest object.");
  else 
    return xmlHttp;
}


function showRubric(id)
{
  if (xmlHttp)
  {
    try
    {  	  	  	  
	  var params = "id=" + id ;
	  
      xmlHttp.open("GET", "/admin/ajax/save.php?" + params, true);
      xmlHttp.onreadystatechange = handleRequestStateChange;
      xmlHttp.send(null);
    }
   
    catch (e)
    {
      alert("Can't connect to server:\n" + e.toString());
    }
  }
}

function handleRequestStateChange() 
{
  if (xmlHttp.readyState == 4) 
  {
    if (xmlHttp.status == 200) 
    {
      try
      {
        handleServerResponse();
      }
      catch(e)
      {
        alert("Error reading the response: " + e.toString());
      }
    } 
    else
    {
      alert("There was a problem retrieving the data:\n" +  xmlHttp.statusText);
    }
  }
}

function handleServerResponse()
{
	var responseText = xmlHttp.responseText;
}