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;
}
function get_ajax(tip, wh, obj, lg, div){ 
	var xmlHttp = GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("Il Browser non supporta 'HTTP Request'");
		return;
	}
	urll = 'ajax.php?tip='+tip+'&wh='+wh+'&obj='+obj+'&lg='+lg+'&sid='+Math.random();
	document.getElementById(div).innerHTML = '<p><img src="images/loading.gif" width="32" height="32" alt="Caricamento" /></p>';
	xmlHttp.onreadystatechange = function() {
		if ((xmlHttp.readyState==4) || (xmlHttp.readyState=="complete")) document.getElementById(div).innerHTML = xmlHttp.responseText;
	}
	xmlHttp.open("GET", urll, true);
	xmlHttp.send(null);
}
function set_vid(tip, wh, obj, lg) {
	get_ajax(tip, wh, obj, lg, 'list');
	var so = new SWFObject("video.swf", "videoPlayer", "320", "260", "9", "#ECECEC");
	so.useExpressInstall('expressinstall.swf');
	so.addParam("quality", "best");
	so.addVariable("wh", obj);
	so.write("vPl");
	get_ajax(2, obj, 0, lg, 'descr');
	return false;
}