var xmlHttp;
function getRecord(page_url)
{
	xmlHttp = GetXmlHttpObject1();
	if(xmlHttp == null)
	{
		alert("Browser does not support HTTP REQUEST");
		return;
	}		
	var url =page_url;
	url = url+"?sid="+Math.random();
	xmlHttp.onreadystatechange = record;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}
function record()
{
	if(xmlHttp.readyState == 4 || xmlHttp.readyState =='complete')
	{
		 document.getElementById('online_user').innerHTML =xmlHttp.responseText;
	}
}
function GetXmlHttpObject1()
{
	var xmlHttp = null;
	try{
			xmlHttp = new XMLHttpRequest();
		}
	catch(e){
		try
		{
			xmlHttp = new ActiveXObject("MSxml2.XMLHTTP");
		}
		catch(e)
		{
			xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
}
return xmlHttp;
}