JQ 短信倒计时

//短信倒计时

var countdown=60;

function settime(obj) {

if (countdown == 0) {

obj.removeAttribute("disabled");

obj.value="获取验证码";

countdown = 60;

$(".yam") .removeClass("huise");

return;

} else {

obj.setAttribute("disabled", true);

obj.value="重新发送(" + countdown + ")";

countdown--;

if(countdown<10){

countdown="0"+countdown;

}

$(".yam") .addClass("huise");

}

 

setTimeout(function() {

settime(obj) }

,1000)

}