js 验证码 倒计时60秒
js 验证码 倒计时60秒
<input type="button" id="btn" value="免费获取验证码" /> <script type="text/javascript"> var wait=60; function time(o) { if (wait == 0) { o.removeAttribute("disabled"); o.value="免费获取验证码"; wait = 60; } else { o.setAttribute("disabled", true); o.value="重新发送(" + wait + ")"; wait--; setTimeout(function() { time(o) }, 1000) } } document.getElementById("btn").onclick=function(){time(this);} </script>
来自:http://blog.csdn.net/xiaosong2008/article/details/39964093