function GetXmlHttpObject(handler) { 
	var objXMLHttp = null;
	if (window.XMLHttpRequest) {
		objXMLHttp = new XMLHttpRequest();
	} else if (window.ActiveXObject) {
		objXMLHttp = new ActiveXObject('Microsoft.XMLHTTP');
	}
	return objXMLHttp;
}


function ListenTrackStateChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=='complete') {
		document.getElementById('show_player').innerHTML = xmlHttp.responseText;
	}
}
function ListenTrack(list) {
	xmlHttp = GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ('Browser does not support HTTP Request');
		return;
	}
	var url = 'inc.player_intro.asp?param='+list;
	xmlHttp.onreadystatechange = ListenTrackStateChanged;
	xmlHttp.open('GET',url,true);
	xmlHttp.send(null);
}