var pop = null;

function popdownmusic() { 
  //not allowed to close window for security issues
  //if (pop && !pop.closed) pop.close();
  //window.close('popupmusic');
}

function popupmusic(obj, w, h){
	var url = (obj.getAttribute) ? obj.getAttribute('href') : obj.href;
	if (!url) 
		return true;
	w = (w) ? w += 20 : 150;
	h = (h) ? h += 25 : 150;
	var args = 'width=' + w + ',height=' + h + ',resizable';
	pop = window.open(url, 'popupmusic', args);
	return (pop) ? false : true;
}