Jquery 定时器

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        });
        var interval;
        function fInterval() {
            var currTime = (new Date()).valueOf();
            var diftime = currTime - parseInt($("#AcceptTime").val(), 10);
            if (diftime < 5 * 1000) {
                //隐藏按钮
                $("#GetMsg").attr("style", "display:none");
                $("#timeTip").attr("style", "display:block");
                $("#timeTip").html("请在" + Math.floor((5 * 1000 - diftime) / 1000) + "秒后重新获取验证码！");
                return;
            }
            else {
                if (interval != null) {
                    clearInterval(interval);
                }
                $("#GetMsg").attr("style", "display:block");
                $("#timeTip").attr("style", "display:none");
            }
        }

        function SentCaptcha() {
            $("#AcceptTime").val((new Date()).valueOf());
            interval = setInterval(fInterval, 1000);
        }
    </script>

</head>
<body>
    <div>
        <input type="button" id="GetMsg" value="获取验证码" onclick="SentCaptcha()" style="display:block;" />
        <div id="timeTip" style="display: none;"> </div>
        <input type="hidden" id="AcceptTime" />
    </div>
</body>

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