倒计时

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<style>
.t1 { width:400px; }
</style>
<script>

window.onload = function () {
    var aInp = document.getElementsByTagName('input');
    var iNow = null;
    var iNew = null;
    var t = 0;
    var str = '';
    var timer = null;
    
    aInp[2].onclick = function () {
        iNew = new Date(aInp[0].value);   //获取填写设定的时间
        clearInterval( timer );
        
        timer = setInterval (function (){
            
            iNow = new Date();   //得到现在的时间
            t = Math.floor( ( iNew - iNow ) / 1000 );   //得到距离设定的时间还有多少秒
            
            if ( t >= 0 ) {  //如果是正数,继续倒计时
                
                str = Math.floor(t/86400)+'天'+Math.floor(t%86400/3600)+''+Math.floor(t%86400%3600/60)+'分'+t%60+'秒';
            
                aInp[1].value = str;
                
            } else {  //如果是负数说明已经到了时间,停止倒计时
                
                clearInterval( timer );
                
            }
        
        }, 1000);
    };
};
</script>
</head>

<body>

距离:<input class="t1" type="text" value="November 27,2013 22:3:0" /><br />
还剩:<input class="t1" type="text" />
<input type="button" value="开始倒计时吧" />

</body>
</html>

 

posted @ 2017-03-23 16:46  念念念不忘  阅读(156)  评论(0)    收藏  举报