var xmlHttp
var xmlAjax

function updateArea(id, url) {
	xmlAjax = id;
	xmlHttp=GetXmlHttpObject();
	
	if(xmlHttp==null)
	{
		alert ("Your browser does not support AJAX!");
		return;
	} 
		
	xmlHttp.onreadystatechange=newChange;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}

function newChange() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById(xmlAjax).innerHTML=xmlHttp.responseText;
	}
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	{
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	
	return xmlHttp;
}