// JavaScript Document (AJAX)

var xmlHttp

// set XMLHttp object control (browser dependent)
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 to display text hints
// page    : URL being called
// qurey   : Query string provided
function updatePage(page, query) {
	
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	} 
	
	url = page + "?" + query;
	//alert (url);
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
} 

// check state prior to updating
// id_ref  : page section id name
function stateChanged() { 
	if (xmlHttp.readyState==4)	{ 
		document.getElementById("latest_news").innerHTML=xmlHttp.responseText;
	}
}