倒计时

<div class="boxcontent">
<ul>
<li class="active"><a href="/special/2015/12/koreaPage"></a></li>
<li><a href="javascript:void(0)"></a></li>
<li><a href="javascript:void(0);"></a></li>
<li><a href="javascript:void(0);"></a></li>
</ul>
</div>

function oDate(currentdata,idex,ihref){
        var stringTime = currentdata;
        var timestamp2 = Date.parse(new Date(stringTime));
        timestamp2 = timestamp2 / 1000;
       
        var timestamp = Date.parse(new Date());
        timestamp = timestamp / 1000;
        if((timestamp2-timestamp)<=0){
           ocl(idex,ihref);    
        }else{
            var timer=null;
            timer=setInterval(function(){
                var stringTime = currentdata;
                var timestamp2 = Date.parse(new Date(stringTime));
                timestamp2 = timestamp2 / 1000;
                
                var timestamp = Date.parse(new Date());
                timestamp = timestamp / 1000;
                  if((timestamp2-timestamp)<=0){
                   ocl(idex,ihref);    
                   clearInterval(timer);
                }
            },1000);
        }
    }
    function ocl(idex,ihref){
        $(".boxcontent li").eq(idex).find("a").attr("href",ihref).siblings().hide();
    }
    oDate("2015-12-5 23:59:59",1,"http://www.vmei.com/special/2015/12/japanPage");