var allSeconds;
$(document).ready(function(){


/////////////////计时器

allSeconds=getdt();
$(".date").html(getLeftTimeString(allSeconds));
function reTime(){
allSeconds--;
return allSeconds
}

var otime=setInterval(function(){
$(".date").html(getLeftTimeString(reTime()));
},1000);

function getLeftTimeString(ms){
    if(ms<=0) 
    { 
     window.clearInterval(otime); 
    return "限时抢购已经结束";
    }
    
    var rr="";
    if(ms>=3600){
        rr=rr+String(Math.floor(ms/3600))+"小时";
        ms=ms%3600;
    }

    if(ms>=60){
        rr=rr+String(Math.floor(ms/60))+"分钟";
        ms=ms%60;
    }
    rr=rr+String(Math.floor(ms))+"秒";
    rr="倒计时："+rr;
    return rr;
}
////////////////




});