var xmlhttp;

function abrir(URL) {

  var width = 600;
  var height = 400;

  var left = 150;
  var top = 150;

  window.open(URL,'janela', 'width='+width+', height='+height+', top='+top+', left='+left+', scrollbars=yes, status=no, toolbar=no, location=no, directories=no, menubar=no, resizable=no, fullscreen=no');

}


function parar(id, op){
	var divq, i;
	
	for (i=1;i<=10;i++){
		divq = document.getElementById("parar"+i).style;
		divq.display = 'none';
	}
	if(op==0){
		divq = document.getElementById("parar"+id).style;
		divq.display = 'block';
	}
	
}




function musica(id, op)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("O seu browser não suporta AJAX!");
  return;
  }
  parar(id ,op);

var url="tocar.asp?id="+id+"&op="+op;
xmlhttp.onreadystatechange=Changed;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);


}

function Changed()
{
if (xmlhttp.readyState==4)
  {
  document.getElementById("musicas").innerHTML=xmlhttp.responseText;
 
}
}



function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  //IE7 ou 8, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}