function sample_pop( name, file )
{
	w = 150;
	h = 270;
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars=no,resizable,status=no,location=no,menubar=no,toolbar=no, directories=no,dependent=yes';
	// open popup
	win = window.open('sample_player_popup.php?mp3_name='+name+'&mp3_file='+file, 'sample_popup', winprops);
	win.document.focus();
}