function assegnaXMLHttpRequest() {
	var
	XHR = null,
	browserUtente = navigator.userAgent.toUpperCase();
	if(typeof(XMLHttpRequest) === "function" || typeof(XMLHttpRequest) === "object")
	XHR = new XMLHttpRequest();
	else if(
	window.ActiveXObject &&
	browserUtente.indexOf("MSIE 4") < 0
	) {
	if(browserUtente.indexOf("MSIE 5") < 0)
	XHR = new ActiveXObject("Msxml2.XMLHTTP");
	else
	XHR = new ActiveXObject("Microsoft.XMLHTTP");
	}
	return XHR;
}
function getAnnunci(idnetwork,num,resultpage,div){
var ajax = assegnaXMLHttpRequest();
	if(ajax) {
		ajax.open("post", "http://www.umbriatravel.com/adv/adsjs.php", true);
		ajax.setRequestHeader("content-type", "application/x-www-form-urlencoded");
		ajax.setRequestHeader("connection", "close");
		dati='idnetwork='+idnetwork+'&num='+num+'&resultpage='+resultpage;
		ajax.send(dati);
		ajax.onreadystatechange = function(){
			if(ajax.readyState == 4){
				document.getElementById(div).innerHTML=ajax.responseText;
				document.getElementById(div).style.display="block";
			}
		}
	 }
	 return false;
}
function openLink(idnetwork,id){
var ajax = assegnaXMLHttpRequest();
	if(ajax) {
		ajax.open("post", "http://www.umbriatravel.com/adv/js_result.php", true);
		ajax.setRequestHeader("content-type", "application/x-www-form-urlencoded");
		ajax.setRequestHeader("connection", "close");
		dati='idnetwork='+idnetwork+'&id='+id;
		ajax.send(dati);
		ajax.onreadystatechange = function(){
			if(ajax.readyState == 4){
				document.write(ajax.responseText);
			}
		}
	 }
	 return false;
}