function aModificarAudio(audio){
	if((xmlHttp = GetXmlHttpObject()) == null){
		alert ("Browser does not support HTTP Request");
		return;
	}
	
	var url="ajax/aModificarAudio.php";
	var params = "audio=" + audio;
	
	xmlHttp.onreadystatechange = stateChanged_modificarAudio;
	xmlHttp.open("POST",url,true);
	xmlHttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
	xmlHttp.setRequestHeader('Content-length', params.length);
	xmlHttp.setRequestHeader('Connection', 'close');
	xmlHttp.send(params);
}

function stateChanged_modificarAudio(){
	if((xmlHttp.readyState == 4) || (xmlHttp.readyState == "complete")){
		var res = xmlHttp.responseText;
	}
}