// Index page menu expand
function domenu(n)
{

var m = document.getElementById("music-items");
var s = document.getElementById("service-items");

switch(n) {
  case 1:
    s.style.display ="block";
    m.style.display ="none";
    break;
  case 2:
    s.style.display ="none";
    m.style.display ="block";
    break;
  default:
    s.style.display ="none";
    m.style.display ="none";
    break;
}
}