var req;
var the_timeout;
var fldname;

var i=0;

function getdata(url){
	loadXMLDoc(url);
	fldname="placeholder";
}
function loadXMLDoc(url){
	if(window.XMLHttpRequest){
		req=new XMLHttpRequest();
		req.onreadystatechange=processResponse;
		req.open("GET",url,true);
		req.send(null);
	} else if(window.ActiveXObject){
		req=new ActiveXObject("Microsoft.XMLHTTP");
		if(req){
			req.onreadystatechange=processResponse;
			req.open("GET",url,true);
			req.send();
		}
	}
}
function processResponse(){
	if(req.readyState==4){
		if (req.status==200){
			document.getElementById(fldname).innerHTML = req.responseText;
		} else {
			alert("bad request");
		}
	} else {
		//alert(req.readyState);
	}
}