// JavaScript Document

function get_feed(which){
	var
	ajax = assegnaXMLHttpRequest(),
	elemento = prendiElementoDaId("cont_"+which),
	usaLink = true;
	if(which == "tweet")
		elemento.innerHTML = "<br/><br/><center><img src='img/ajax-tweet.gif'></center>";
	else
		elemento.innerHTML = "<center><img src='img/ajax-loader.gif'></center>";
	if(ajax) {
		usaLink = false;
		if(which == "feed")
			ajax.open("get", "php/feed.php?&p="+Math.random(), true);
		if(which == "news")
			ajax.open("get", "php/news.php?&p="+Math.random(), true);
		if(which == "tweet")
			ajax.open("get", "php/tweet.php?&p="+Math.random(), true);

		ajax.setRequestHeader("connection", "close");
		ajax.onreadystatechange = function() {
			if(ajax.readyState === readyState.COMPLETATO) {
				if(statusText[ajax.status] === "OK"){
					/*text = ajax.responseText;
					vet = text.split("<sep1/>");
					elemento.innerHTML = "<ul>"+vet[1]+"</ul>";  */
					elemento.innerHTML = ajax.responseText;
				}else {
					elemento.innerHTML = "Impossibile effettuare l'operazione richiesta.<br />";
					elemento.innerHTML += "Errore riscontrato: " + statusText[ajax.status];
				}
			} 
		}
		ajax.send(null);
	}
	return usaLink;
}