JS实现定时轮询新消息弹窗与语音提示

<audio id="sound" autoplay="autoplay">

document.getElementById("sound").src="<%=basePath%>admin/media/global.wav";

jQuery(document).ready(function() { 
setInterval(function(){ 
$.post('ajax/linecheck',function(data){
var json=eval("("+data+")");
$.each(json,function(index,item){
$("#line"+item.id).html("")
$.each(item.localList,function(index,item2){
if(item2.attendOCList!=""){
$("#line"+item.id).append("<li class='in' id='in"+item2.id+"'><div class='avatar'>"
+item2.location+"</div><div class='message'><ul id=li"+item2.id+"></ul></div></li>")
}
$.each(item2.attendOCList,function(index,item3){
if(item3.status==0){
$("#li"+item2.id).append("<li class='user'><span class='username'>"+item3.person_name
+"</span><br><span style='color:red;' class='username'>时间: "
+ item3.today+" "+item3.times +"</span><br><span class='username'>电话:"
+item3.person_phone+"</span><br><span class='username'>身份证:"
+item3.card_id+"</span></li><hr>");
}else{
$("#li"+item2.id).append("<li class='user'><span class='username'>"
+item3.person_name+"</span><br><span style='color:red;' class='username'>时间: "
+ item3.today+" "+item3.times +"</span><br><span class='username'>电话:"
+item3.person_phone+"</span><br><span class='username'>身份证:"
+item3.card_id+"</span></li><hr>");
document.getElementById("sound").src="<%=basePath%>admin/media/global.wav";
setTimeout(function () {
var unique_id = $.gritter.add({
title: item3.person_name+"("+item2.location+")",
text:"<span class='username'>"+item3.person_name
+"</span><br><span style='color:red;' class='username'>时间: "
+ item3.today+" "+item3.times +"</span><br><span class='username'>电话:"
+item3.person_phone+"</span><br><span class='username'>身份证:"+item3.card_id+"</span>",
sticky: true,
time: '',
class_name: 'my-sticky-class'
});
setTimeout(function () {
$.gritter.remove(unique_id, {
fade: true,
speed: 'slow'
});
}, 12000);
}, 2000);
}
});
});
});
});
},2000); 
});