var state;


function playurl(urlname)
{
 
  player.controls.stop();
  clearInterval(state);
  player.url=urlname;
  player.controls.play();
  state=setInterval("updatetime()",1000);
  playerinfo.innerHTML = "播放";
 }

//播放
function play()
{
 if (player.controls.isavailable('play'))
 {
  player.controls.play();
  state=setInterval("updatetime()",1000);
  playerinfo.innerHTML = "播放";
 }
}

//暂停
function pause()
{
 if (player.controls.isavailable('pause'))
 {
  player.controls.pause();
  clearInterval(state);
  playerinfo.innerHTML = "暂停";
 }
}

//停止
function stop()
{
 if (player.controls.isavailable('stop'))
 {
  player.controls.stop();
  clearInterval(state);
  playerinfo.innerHTML = "停止";
 }
}

//前首
function previous()
{
 if (player.controls.isavailable( 'previous' ))
 {
  player.controls.previous();
  playerinfo.innerHTML = "前一首";
 }
}

//后首
function next()
{
 if (player.controls.isavailable( 'next' ))
 {
  player.controls.next();
  playerinfo.innerHTML = "下一首";
 }
}

//？
function step()
{
 if (player.controls.isavailable( 'step' ))
 player.controls.step( 1 );
}

//音量-
function voldown()
{
 if ( player.settings.volume < 5 )
 {
  player.settings.volume = 0;
  playerinfo.innerHTML = "0";
 }
 else
 {
  player.settings.volume -= 5;
  playerinfo.innerHTML = player.settings.volume;
 }
}

//音量+
function volup()
{
 if ( player.settings.volume > 95 )
 {
  player.settings.volume = 100;
  playerinfo.innerHTML = "100";
 }
 else
 {
  player.settings.volume += 5;
  playerinfo.innerHTML = player.settings.volume;
 }
}

//静音
function mute()
{
 player.settings.mute = !player.settings.mute;
}

//声道
function balance()
{
 switch (player.settings.balance)
 {
  case 0:
   player.settings.balance = 100;
   playerinfo.innerHTML = '左声道';
   break;
  case 100:
   player.settings.balance = -100;
   playerinfo.innerHTML = '右声道';
   break;
  case -100:
   player.settings.balance = 0;
   playerinfo.innerHTML = '全声道';
   break;
  default :
   player.settings.balance = 0;
   playerinfo.innerHTML = '全声道';
   break;
 }
}

//更新时间
function updatetime()
{
 playerinfo.innerHTML = player.controls.currentPositionString + " | " + player.currentMedia.durationString;
}