function show(id, flag) {
  if (document.all) {
    document.all.item(id).style.visibility = "visible";
  }
  if (document.layers) {
    document.layers[id].visibility = "show";
  }
}
function hide(id, flag) {
  if (document.all) {
    document.all.item(id).style.visibility = "hidden";
  }
  if (document.layers) {
    document.layers[id].visibility = "hide";
  }
}
function musicwindow(){
    window.open('music.html','win1','toolbar=no,location=no,status=no,menubar=no,scrollbars=no,width=120,height=100');
}