//Javascript Document - transmit AJAX request to ajaxComments.php
var xmlHttp;
function getComments(articleID, page, order, limit)
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request");
 return;
 } 
var url="/include/ajaxComments.php";
xmlHttp.onreadystatechange=commentsCallback;
xmlHttp.open("GET",url+'?AID='+articleID+'&page='+page+'&order='+order+'&limit='+limit,true);
xmlHttp.send(null);
}
function commentsCallback()
{
 if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 {
 var comments = document.getElementById("comments_container_mw");
 comments.innerHTML = xmlHttp.responseText;
 } 
}

function GetXmlHttpObject()
{
  // will store the reference to the XMLHttpRequest object
  var xmlHttp;
  // this should work for all browsers except IE6 and older
  try
  {
    // try to create XMLHttpRequest object
    xmlHttp = new XMLHttpRequest();
  }
  catch(e)
  {
    // assume IE6 or older
    var XmlHttpVersions = new Array("MSXML2.XMLHTTP.6.0",
                                    "MSXML2.XMLHTTP.5.0",
                                    "MSXML2.XMLHTTP.4.0",
                                    "MSXML2.XMLHTTP.3.0",
                                    "MSXML2.XMLHTTP",
                                    "Microsoft.XMLHTTP");
    // try every prog id until one works
    for (var i=0; i<XmlHttpVersions.length && !xmlHttp; i++) 
    {
      try 
      { 
        // try to create XMLHttpRequest object
        xmlHttp = new ActiveXObject(XmlHttpVersions[i]);
      } 
      catch (e) {}
    }
  }
  // return the created object or display an error message
  if (!xmlHttp)
    alert("Error creating the XMLHttpRequest object.");
  else 
    return xmlHttp;
}