function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

function content_replace(page,article_id,url)
{ 
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	{
		alert ("Your browser does not support AJAX!");
		return;
	} 
	if (url == null)
	{
		url="article_ajax.php";
	}
	url=url+"?page_no="+page+"&article_id="+article_id;
	
	//alert(url);
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}




function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{ 
	//alert(xmlHttp.responseText);

document.getElementById("content").innerHTML=xmlHttp.responseText;
}
}