function set_on_music()
{
exDate = new Date
exDate.setMonth(exDate.getMonth()+9)
if( confirm('确定要打开音乐吗?'))
{
var musicstr = 'musicflag=on'
var musicurl= 'musicurl='+escape(window.location.toString());
document.cookie = musicstr +'; expires=' + exDate.toGMTString();
document.cookie = musicurl +'; expires=' + exDate.toGMTString();
parent.location.replace('index.aspx');
}
}

function set_off_music()
{
exDate = new Date
exDate.setMonth(exDate.getMonth()-9)
if( confirm('确定要关闭音乐吗?'))
{
var musicstr= 'musicflag=off' 
var musicurl = window.location.toString();
document.cookie = musicstr +'; expires=' + exDate.toGMTString();
parent.location.replace(musicurl);
}
}

function getCookieVal (offset) {
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
  endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) 
{
  var arg = name + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) 
  {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
      return getCookieVal (j);
    i = document.cookie.indexOf(" ", i) + 1;
    if (i == 0)
       break;
  }
  return "";
}