var request = false;
try {
	request = new XMLHttpRequest();
} catch (trymicrosoft) {
	try {
		request = new ActiveXObject("Msxml2.XMLHTTP");
	} catch (othermicrosoft) {
		try {
			request = new ActiveXObject("Microsoft.XMLHTTP");
		} catch (failed) {
			request = false;
		}
	}
}

if (!request) {
	alert("Error initializing XMLHttpRequest, Please return to non-Ajax mode!");
}

function advSongInfo(id) {
	var url = "index.php?action=advinfo&id="+id;
	request.open("GET", url, true);
	request.onreadystatechange = finishAdvSongInfo;
	request.send(null);
}
function finishAdvSongInfo() {
	if(request.readyState == 1) {
		getObj('advSongInfo').innerHTML = '<div style="margin:10%;text-align:center;"><img src="images/ajax-loader2.gif" alt="Loading..." /></div>';
	}
	if (request.readyState == 4) {
		if (request.status == 200) {
			var response = request.responseText;
			getObj('advSongInfo').innerHTML = response;
		} else {
			alert("status is " + request.status);
		}
	}
}