播放音乐方法(兼容IE FF Chrome Opera Safari)

/** 音乐播放器
* @param obj 	播放器id
* @param file 	音频文件 mp3: ogg:
* @param loop	是否循环
*/
function audioplayer(id, file, loop){
var audioplayer = document.getElementById(id);
if(audioplayer!=null){
document.body.removeChild(audioplayer);
}

if(typeof(file)!='undefined'){
if(navigator.userAgent.indexOf("MSIE")>0){	// IE

var player = document.createElement('bgsound');
player.id = id;
player.src = file['mp3'];
player.setAttribute('autostart', 'true');
if(loop){
player.setAttribute('loop', 'infinite');
}
document.body.appendChild(player);

}else{	// Other FF Chome Safari Opera

var player = document.createElement('audio');
player.id = id;
player.setAttribute('autoplay','autoplay');
if(loop){
player.setAttribute('loop','loop');
}
document.body.appendChild(player);

var mp3 = document.createElement('source');
mp3.src = file['mp3'];
mp3.type= 'audio/mpeg';
player.appendChild(mp3);

var ogg = document.createElement('source');
ogg.src = file['ogg'];
ogg.type= 'audio/ogg';
player.appendChild(ogg);

}
}
}

var file = [];
file['mp3'] = '1.mp3';
file['ogg'] = '1.ogg';
audioplayer('audioplane', file, true); // 播放
audioplayer('audioplane'); // 停止